bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of thinning eucalyptus trees on soybean productivity in integrated crop-livestock-forestry systems
Authors: Behling Maurel , Souza Andre Luiz de , Lange Anderson , Camargo Diego , Fallgatter Jonas , Barreto Gerson Uvida
Published: February 2023

ABSTRACT: The aim of the study was to evaluate the effects of integrated crop-livestock-forestry (ICLF) systems and the thinning of eucalyptus trees on the agronomical performance of soybean. Treatments consisted of cultivation under: crops under full sunlight (CFS) conditions; ICLF with triple-row tree configuration (ICLFT) in which trees were submitted to selective thinning in the fifth year after planting through removal of 50% of trees while maintaining triple-row bands; and ICLF with single-row tree band configuration (ICLFS) in which the lateral rows of the triple-row tree bands were subjected to systematic thinning at the fourth year after planting. The physiological and agronomical variables of the soybean crop were evaluated at the R5 and R8 reproductive stages during the eighth harvesting season (2018/2019). Soybean sampling was carried out at five random positions in the CFS and in four transects at distances of 3, 6, 10 and 15 m from the tree bands in both the north and south faces of the ICLF systems. There were no differences between soybean grown under the ICLF and CFS systems with respect to specific leaf area, plant density, lodging index and mass of a thousand grains. However, the ICLF increased dry leaf mass and leaf area index and reduced soybean plant heights. Soybean productivity was reduced by 26% in ICLF-T and 14% in ICLF-S, that is, a 12% reduction in the productivity loss with systematic thinning. It is concluded that ICLF reduces soybean productivity in the effective grain production area of the system, regardless of the degree of thinning, although systematic thinning by removing the lateral tree lines to conversion of triple-rows into single-rows minimizes the loss of soybean grain yield.
Intake and apparent nutrient digestibility, ruminal parameters, and nitrogen balance of lambs fed with corn and forage-free diets with sodium bicarbonate
Authors: Vicente Ana Carolina Silva , Carlis Matheus Sousa de Paula , Santos Isabela Jorge dos , Silva Adrielly Lais Alves da , Dias Junior Paulo César Gonzales , Eckermann Nathalia Rubio , Souza Terezinha Teixeira de , Polizel Daniel Montanher , Baggio Marcelo , Biava Janaina Socolovski , Pires Alexandre Vaz , Ferreira Evandro Maia
Published: February 2023

ABSTRACT: This study evaluated forage-free diets supplemented with sodium bicarbonate (SB) based on ground flint corn on intake, apparent nutrient digestibility, ruminal parameters, and N balance. Four rumen-cannulatedDorper × Santa Inês lambs, with a body weight of 43.4 ± 0.85 kg (mean ± standard deviation) were used. The experimental design was a 4×4 Latin square. Each experimental period lasted 21 days. Experimental diets were: positive control, a diet without SB containing 400 g/kg DM of soybean hulls (CONT), and three diets based on ground flint corn, containing 10 (10SB), 20 (20SB) or 30 (30SB) g/kg DM of SB. Intake of neutral and acid detergent fiber was greater for CONT (P < 0.01) when compared to SB. Intake and apparent nutrient digestibility of dry and organic matter, ether extract, and crude protein did not differ. Intake (P = 0.01) and digestibility (P < 0.01) of non-fiber carbohydrates were greater for SB diets and neutral detergent fiber digestibility was greater (P = 0.03) for CONT. The total digestible nutrients and metabolizable energy were greater for SB (P = 0.04). Rumen concentrations of acetate (P < 0.01), isobutyrate (P < 0.01), butyrate (P < 0.01), isovalerate (P < 0.01), and total short-chain fatty acids (P < 0.01) were greater for CONT. Ruminal pH showed a quadratic (P = 0.05) response to SB levels, with greater values for 20SB. Sodium bicarbonate was efficient in increasing ruminal pH at the level of 20 g/kg DM without interfering with the intake and apparent nutrient digestibility characteristics.
Internação hospitalar por transtornos mentais e comportamentais em adolescentes no Brasil, 2008-2017
Authors: Rodrigues Livia dos Santos , Deca Junior Aurean , Lisboa Livia Anniele Sousa , Castro Laine Cortês Albuquerque , Campos Monna Rafaella Mendes Veloso , Costa Luciana Cavalcante , Rêgo Adriana Sousa
Published: February 2023

Resumo Introdução Internações por transtornos mentais e comportamentais não são ocorrências raras em adolescentes. Estima-se que aproximadamente 30% dos adolescentes brasileiros sejam acometidos por transtornos mentais. Objetivo Analisar a evolução das internações por transtornos mentais e comportamentais em adolescentes brasileiros de 2008 a 2017. Método Estudo ecológico de séries temporais utilizando dados do Sistema de Informações Hospitalares do Sistema Único de Saúde e do IBGE. As variáveis utilizadas foram regiões de residência, sexo, faixa etária e grupos de diagnósticos. A tendência do coeficiente de internação foi analisada através da regressão de Prais-Winsten utilizando o Stata 14.0. Resultados Houve 152.465 internações no período; o coeficiente de internação hospitalar reduziu na região Nordeste de 27,75 a 23,16 por 100 mil habitantes (Coef = -0,0070; -1,6%), aumentou de 13,70 a 21,61 por 100 mil habitantes no Norte (Coef = 0,0192; 4,5%) e nas regiões Sul, Sudeste e Centro-oeste houve tendência estável. Verificou-se tendência crescente de internações entre as mulheres (Coef = 0,0136; 3,2%), e por transtornos do humor [afetivos] (0,0266; 6,33%) e outros transtornos mentais e comportamentais (0,0295; 7,03%). Conclusão Estudos epidemiológicos como este ajudam a fornecer informações úteis para o planejamento de serviços de prevenção e tratamento primário, secundário e terciário voltados à saúde mental, especialmente entre crianças e adolescentes.
Comportamento à flexão de vigas de madeira reforçadas com perfis de aço fixados com diferentes parafusos: análise experimental e computacional
Authors: Ehrenbring Hinoel Zamis , Vidal Marcelo , Aires Rafael Hannich , Christ Roberto , Braatz Simone , Schneider Diego , Tutikian Bernardo Fonseca , Pacheco Fernanda
Published: February 2023

RESUMO Este artigo verificou o comportamento estrutural à flexão de três configurações de vigas mistas de madeira e perfis de aço, por meio do método de homogeneização da seção mista, ensaios experimentais e simulação computacional. Foram analisadas viga de madeira sem reforço (V-SR), com perfis de chapa de aço dobrada fixada com parafuso tipo prisioneiro (V-PRI) e autoatarraxante (V-AUT). Foram realizados ensaios de flexão por 3 pontos, obtendo a força de ruptura e deslocamentos. Verificou-se que a forma ruptura das vigas foi similar em todas as configurações, ocorrendo na parte tracionada, sem apresentar flambagem lateral dos perfis de aço ou deformação plástica dos parafusos. Notou-se que a inserção dos perfis de aço ocasionou um aumento na resistência das vigas mistas, sendo de 100% nas vigas com perfis de chapa de aço dobrada fixada com parafuso tipo prisioneiro (V-PRI) e de 32% nas vigas com perfis de chapa de aço dobrada fixada com parafuso tipo autoatarraxante (V-AUT). As simulações pelo método dos elementos finitos apresentaram valores mais próximos ao comportamento na flexão das vigas V-SR e V-PRI no regime elástico (ELS). O método de homogeneização da seção mista mostrou-se mais próximo dos resultados experimentais nas vigas de madeira reforçadas (V-PRI e V-AUT).
EFFECTS OF PHYSICAL CONDITIONING ON TEACHING SWIMMING SKILLS TO UNIVERSITY STUDENTS
Authors: Jiang Wei
Published: February 2023

ABSTRACT Introduction: Swimming is a sport that requires skill and great physical strength. The effects of its training reflect on the practitioner's motor coordination, body shape, and general physical health. These benefits can provide college students with a teaching foundation for future learning in other skills. Objective: Explore the effects of physical training on teaching swimming skills. Methods: Forty non-physical education university students were randomly selected and divided into an experimental and control group. The experiment lasted 12 weeks, and the experimental group performed a training protocol stipulated by the researchers three times a week, including 10 minutes of stretching, 45 minutes of physical training, and 10 minutes of cooling down, totaling 65 minutes. The control group performed standard swim training. Swimming skill changes were assessed in the pool and statistically compared; the indicators were collected and analyzed. Results: The experimental physical training evidenced its scores in the FMS test, where the control group's improvement was statistically lower. Conclusion: The choice of directed sports training can improve the swimming speed of the students and make their movements more coordinated, reflecting greater mastery of the musculature and increase in the level of physical fitness in university students, which is indicated for the integral development of teaching. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECT OF TAI-JI PRACTICE ON THE HEALTH OF THE ELDERLY
Authors: Liu Dawei , Liu Jiajie
Published: February 2023

ABSTRACT Introduction: The practice of Tai-ji has shown a positive effect on the physical functions of the elderly and has been promoted as a recommended daily activity for middle-aged and elderly individuals. However, there is still no scientific evidence about its cardiorespiratory benefits. Objective: Study the effect of Tai-ji on the cardiorespiratory function and physical fitness of the elderly. Methods: A group of elderly people from the same community and in good health, considered suitable for sports experiments was divided into the experimental group for Tai-ji exercise and the control group for vigorous walking exercise. Each week, the Tai-ji exercise with eight steps and the vigorous walking exercise was performed three times in each group. Results: After six weeks of Tai-ji exercise with eight steps of five methods, the vital capacity, maximal oxygen consumption, maximal voluntary ventilation, and oxygen pulse of the experimental group were significantly increased, and the systolic and diastolic pressures were significantly reduced, evidencing an improvement in the performance of the cardiopulmonary function. Conclusion: Tai-ji exercise is beneficial for the cardiopulmonary function and physical health of the elderly and is scientifically useful for improving the mental health level and quality of life of the elderly. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
PHYSICAL EXERCISES IN THE REHABILITATION OF SPORTS INJURIES IN THE ELDERLY
Authors: Gao Jing
Published: February 2023

ABSTRACT Introduction: According to the background of the healthy aging population and national fitness care, rapid development has begun in national sports in China. This development is the result of current research on the current scenario. Objective: Study the effects of exercise on the rehabilitation of middle-aged and elderly people with sports injuries. Methods: Twenty individuals were recruited for the experiment; the experimental group received the rehabilitation exercise protocol three times a week for four weeks, while the control group maintained the original lifestyle with no exercise or vigorous exercise. Results: It was found that there was no significant difference in height, weight, and body fat percentage after the aerobic exercise intervention training protocol (P>0.05), but there was a significant difference in BMI between the experimental group and the control group after the intervention training period (P<0.05). The VAS score of the experimental group before and after training decreased from 5.49 to 0.90, showing a significant effect, indicating a significant difference between the experimental group before and after training (P<0.05). Conclusion: The research shows that exercise positively affects the prevention and rehabilitation of sports injuries. The results obtained can help groups in national fitness. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECT OF VOLLEYBALL TRAINING ON PHYSICAL FITNESS AND CARDIOPULMONARY ENDURANCE OF COLLEGE STUDENTS
Authors: Yue Liu , Hong Chen
Published: February 2023

ABSTRACT Introduction: Volleyball consists mainly of aerobic activities, causing positive impacts on cardiopulmonary resistance and the physical fitness of college students. Studying scientifically the training impacts of this sport can provide a scientific reference to support student training. Objective: Study the effects of volleyball training on college students’ physical fitness and cardiopulmonary endurance. Methods: Second-year physical education students at a university were randomly selected for the experiment (n=50). Divided into the experimental group - adopting volleyball training and practice and control - with traditional athletics, they underwent a full semester of targeted physical activities. Physical fitness and cardiopulmonary endurance tests were performed before and after the experiment, and the results of the test batteries were cataloged and statistically confronted. Results: The experimental class students’ results were superior in the physical fitness tests(P<0.05). The difference in the impact on final inter-group cardiopulmonary resistance was not so evident, demonstrating that both interventions resulted in good conditioning. Conclusion: Volleyball training positively impacted college students’ physical fitness and cardiopulmonary endurance. It also increased the students’ interest in the sport, optimizing the college students’ physical quality and improving their cardiopulmonary resistance. Level of evidence II; Therapeutic studies - investigating treatment outcomes.
INFLUENCE OF FUNCTIONAL TRAINING ON TEACHING TABLE TENNIS TO COLLEGE STUDENTS
Authors: Wu Xiangzhi , Li Jing , Ge Hui , Liu Linghong , Jing XiaoMeng
Published: February 2023

ABSTRACT Introduction: Contemporary table tennis teaching lacks attention to global abilities; some studies suggest that functional training can supply the demands of the high level of sport competition. Objective: Study the effect of functional training on teaching table tennis to college students. Methods: A controlled random selection was carried out (n=40), in which the experimental group (n=20) chose a functional training program. In contrast, the control group (n=20) participated in the teaching of traditional table tennis skills. The training frequency was one hour daily, three times a week, lasting six weeks. Table tennis-specific fitness was assessed before and after the experiment. Data were cataloged and statistically analyzed. Results: On the manual skills index, the experimental group's score increased from 63,194 to 79,683 points after the experiment, and the control group's score increased from 64,788 to 68,775 points after the experiment. In the regression index, the experimental group score increased from 63.645 to 78.614, and the control group score increased from 64.152 to 70.574. Conclusion: The functional training mode proposed in this paper can rapidly improve the competitive level of table tennis and improve the competitive performance of its practitioners. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF AEROBICS ON PHYSICAL FITNESS OF FEMALE UNIVERSITY STUDENTS IN PHYSICAL EDUCATION
Authors: Limin Fu , Jinghui Cui
Published: February 2023

ABSTRACT Introduction: Aerobic gymnastics will be implemented in several universities’ physical education elective course schedules due to its unique advantages, including lower physical environment demands and rapid applicability. Objective: Study the effects of physical training with aerobic gymnastics on the physical fitness of female university students. Methods: The controlled experiment was performed on female undergraduate students of the physical education course at a university. The volunteers were divided into a control group, subjected to the existing aerobics teaching plan, and the experimental group, which practiced an enhanced program compared to the existing aerobics teaching plan. The competitive aerobics physical training method, along with a 30-minute physical training plan, was performed in each class. Another course design and organization were performed according to the existing teaching plan. Results: The mean score of the experimental group before the experiment was 45.22; 49.36 in the second week; 55.22 in the fourth week, 62.89 in the sixth week, 70.2 at the eighth week, and 76.73 at the end of 10 weeks of training. Conclusion: The aerobic physical training program proposed in this work presented a better effect on the fitness gain of female university students. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
IMPACTS OF ABDOMINAL CORE STRENGTHENING ON FITNESS IN AEROBIC GYMNASTICS
Authors: Feng Daoguang
Published: February 2023

ABSTRACT Introduction: The requirements for physical and strength quality of athletes are getting higher and higher, following the advances in the development of modern competitive aerobics. The strengthening of the abdominal center in current exercises is focused only on the superficial musculature, and it is believed that specific strengthening training can impact the fitness of gymnasts. Objective: Analyze the impacts of strengthening the abdominal core on the physical fitness of aerobic gymnasts. Methods: Using the controlled experiment method, abdominal core strength training was added to the traditional training of aerobic gymnastics students, while the control group remained with traditional training methods. The assessment was performed before and after the intervention, and the fitness results were compared and discussed statistically. Results: The mean index of the leaning back activity score in the experimental group increased from 37.750 to 41.582; the index in the bridge activity in the experimental group increased from 6.421 to 16.053; the index in the hanging bridge activity in the experimental group increased from 7.484 to 12.474; the mean overall stability score of the students before and after the experiment increased from 93.090 to 98.148; the mean hip lift index was also changed from 7.046 to 9.676. Conclusion: It was observed that the need for mastery of abdominal core strength to complete aerobic movements of high complexity, where abdominal core strengthening has an important role in stabilizing the center of gravity, force distribution, and preventing fatigue after exercise. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF GYMNASTICS TRAINING ON PHYSICAL FITNESS OF FEMALE COLLEGE STUDENTS
Authors: Ju Wang
Published: February 2023

ABSTRACT Introduction: The physical education curriculum aims to improve the level of students, benefiting the development of physical and mental health. Currently, the original physical education curriculum does not meet the specific requirements of today's students and needs to undergo a new stage of restructuring in its development. Objective: Analyze the impacts of gymnastics training on the physical fitness of female college students. Methods: We selected 86 female college students who chose the gymnastics elective course. The volunteers were divided into an experimental (n=43) and a control group (n=43). While the control performed basic training, the experimental group performed aerobics training according to an established protocol. The experiment, 60 minutes daily, was performed twice a week for 18 weeks. Data related to body composition and functional physical performance were collected before and after the intervention, and a comparative analysis was performed with statistical software. Results: The experimental group showed considerable gains; body fat ratio decreased from 27.99 to 26.25; vital capacity increased by 15.13%, and maximum strength performance in one minute increased by 15.02%. Conclusion: According to the results presented, gymnastics training significantly improved female college students’ physical fitness. Its constant exercise also has the potential to improve the muscle tone of the pelvic girdle and abdomen. Level of evidence II; Therapeutic studies - investigation of treatment results.
MOTOR SKILLS ANALYSIS IN CHINESE BOXING STUDENT TRAINING
Authors: Li Mingyang
Published: February 2023

ABSTRACT Introduction: In recent years, martial arts have become optional in colleges and universities. The main purpose is to improve students’ physical quality and sports ability by teaching them basic skills, which also aids in self-defense awareness. It is believed that there is some influence on motor skills that can also benefit activities of daily living. Objective: Evaluate the influences of Chinese boxing training on the motor skills of practicing college students. Methods: Twenty college student volunteers were selected for the experiment, and divided equally into experimental and control groups. The experimental group performed systematic Chinese boxing training during the training time, while the control group received no physical training other than basic physical education activities during the same period. The students’ balance and coordination abilities were tested before and after the experiment to analyze motor skills, and the relevant data were recorded. Results: After eight weeks of Chinese boxing training, the HCT time of the experimental group decreased significantly, from 10.77 to 9.98, while in the control group, there was no significant difference. Conclusion: Special Chinese boxing training can improve the motor skills ability of students. It evidenced the importance of designing training plans according to the actual situation of students in daily training, seeking to improve the overall physical quality of students in an integral way. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
INJURY PREVENTION FOR YOGA PRACTICING COLLEGE STUDENTS
Authors: Huihui Xie
Published: February 2023

ABSTRACT Introduction: The research shows that most yoga students consider it a low-intensity and low-risk training, evidencing the lack of awareness related to prevention and safety methods, two causal factors of sports injuries. Added to this danger is the scarce literature scientifically reporting the prevention methods for college students practicing this activity. Objective: Study the prevention of injuries during yoga practice by college students, exploring the risk management of this activity. Methods: Patients admitted to a hospital, yoga practitioners, were volunteers in a questionnaire to raise the main injuries and their causes. Data such as time of practice, frequency, and recurrence of injuries were also cataloged. A preventive protocol was elaborated based on the data of the collected accidents and tested with another 50 volunteers divided equally into control and experimental groups. The control group received no interventions. The experimental group added 10 minutes of warm-up and stretching based on the elaborated protocol. Interventions were three times weekly for eight weeks. Risk mitigation data and FMS tests were collected and compared. Results: The total FMS test score in the experimental group increased from 12.5 to 16.2, with a significant impact. The total FMS test score of college students in the control group before the experiment was 12.5 to 14.3. Conclusion: Adding warm-up exercises combined with preparation activities by stretching and basic yoga movements before the start of activities can help athletes’ physical condition and reduce the occurrence of sports injuries. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
IMPROVEMENT OF STUDENTS' TENNIS SKILLS BASED ON HITTING STRENGTH TRAINING
Authors: Yang Shen
Published: February 2023

ABSTRACT Introduction: The traditional method of synchronous training between the waist and abdomen to improve the strengthening of tennis strokes has been the main form of teaching in Chinese universities, but this method has not yet achieved its most expressive results in these years of teaching. Objective: Analyze the differences between traditional strength training for tennis hitting, and provide techniques for its improvement. Methods: A comparative analysis of improved hitting strength training and traditional hitting strength training was conducted, the relevant indicators of students before and after the experiment were collected, and a data analysis program was used for comparison and methodological analysis. Results: The students’ speed and performance were significantly improved. The mean speed of the experimental group increased from 152.66 km/h to 168 km/h; the mean speed of the control group increased from 153.12 km/h to 159.23 km/h; the score of the experimental group relative to the others increased from 42.66 to 72.96. Conclusion: Both methods of strength training can improve the skills of students practicing tennis. The main difference was found in the speed of the improvement frequency. Therefore, we noticed corresponding differences between the groups and the students’ abilities during the experiment, evidencing expressive short-term results. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
REFLECTIONS OF YOGA PRACTICE ON THE PHYSICAL PERFORMANCE OF OBESE STUDENTS
Authors: Qian Zhi
Published: February 2023

ABSTRACT Introduction: Yoga practice is an activity recently implemented in the content of school physical education to guide students to participate actively in sports activities. Its impacts on the body and psychological health of students are constantly evaluated. Objective: Study the effect of yoga practice on the heart rate and cardiopulmonary capacity of obese students. Methods: 40 obese students from a high school were selected as volunteers for the experiment, randomly divided into an experimental group and a control group, with no change in location or duration of intervention between the groups. The students in the control group participated in regular school activities during physical education classes, while the experimental group performed yoga training during the same schedule. The duration was eight weeks. Results: After the experiment, the heart rate and lung function indexes of the students in the experimental group showed a statistical increase, without significant weight changes, but body fat and visceral fat were reduced, with improvement in their body composition and muscle lines. Conclusion: Yoga practice reflected a positive effect on the physical performance of obese students, positively impacting on heart rate and cardiopulmonary resistance of the students. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
IMPACTS OF MUSCLE TRAINING LOADS ON COLLEGE STUDENTS' PHYSICAL FITNESS
Authors: Lu Wang , Hua Zheng , Tailin Wang , Xuanxi Wei
Published: February 2023

ABSTRACT Introduction: Due to the excessive value of contemporary intellectual education, the physical fitness of college students has become precarious. This gradual deficit requires innovative solutions to inhibit the negative impacts on the physical quality that inevitably impact students' learning ability. Objective: Verify the impacts of varied loads in muscular strength exercise on college students and their practical repercussions on the diversified development of physical education classes. Methods: We selected 90 non-sporting college students, sedentary and without physical diseases, divided into experimental group 1 with medium intensity load, experimental group 2 with a low-intensity load, and a control group. Before and after the experiment, the relevant fitness indicators were evaluated, and finally, the data were statistically integrated and analyzed. Results: Group 1 increased from 52.25 ± 5.57kg before training to 54.56 ± 6.02kg, with a very significant change; experimental group 2 increased from 53.32 ± 4.89kg before training to 54.21 ± 5.22kg, showing a very significant change as well. Conclusion: Establishing the intensity of load muscle training scientifically and rationally can improve college students' physical quality and muscle strength, and promote the healthy and coordinated development of their psychological and physical quality. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
ANALYSIS OF THE EFFECTS OF HIGH-INTENSITY STRENGTH TRAINING ON MUSCULATURE AND METABOLISM IN COLLEGE STUDENTS
Authors: Chang Bu , Yangyang Liu
Published: February 2023

ABSTRACT Introduction: Recent studies shows that college students have decreased physical fitness and increased obesity rates, and the rate of obesity will continue to increase over time. Objective: Study the effect of high-intensity strength training on college students’ muscle optimization and metabolic recovery. Methods: This paper adopts the experimental control method. An experimental group performed high-intensity strength training and completed the training with the help of the existing equipment in our school's gym. The control group used normal aerobic training to complete the running training and other movements in athletics. The experimental and control groups were trained three times a week for one hour at a time. Results: In the experimental group, left arm elbow joint extension was optimized to (18.405 ± 2.8878) kg after the experiment, P<0.05; right leg knee joint extension was optimized to (38.754 ± 6.6556) kg after the experiment, P<0.01; serum total cholesterol was optimized to (3.682 ± 0.2643) mmol/L after the experiment, P<0.01. Conclusion: High-intensity strength training, when compared with ordinary aerobic training, has a better optimizing effect on college students’ indicators and higher exercise efficiency. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF SWIMMING ON CARDIOPULMONARY CAPACITY IN COLLEGE STUDENTS
Authors: Hao Jun
Published: February 2023

ABSTRACT Introduction: It is believed that strengthening cardiopulmonary function can reduce health risks caused by the COVID-19 virus, and swimming is a practice that could benefit its practitioners during the epidemic context. Objective: Study the effect of swimming on the cardiopulmonary capacity of college students in the context of COVID-19. Methods: A total of 60 volunteers in three groups were trained twice a week for one hour each for 12 weeks. Among them, swimming group A performed freestyle exercises, swimming group B performed breaststroke exercises, and the control group performed reading activities or another study, mainly focusing on staying seated. Results: The cardiopulmonary capacity of groups A and B was improved, while the cardiopulmonary capacity of the control group experienced little change. This shows that swimming training can effectively improve cardiopulmonary capacity in college students. Conclusion: Appropriate swimming training can improve the cardiopulmonary capacity of college students, and optimize their physical fitness, in the context of COVID-19. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECT OF WEIGHT TRAINING ON THE TRAINING OF BADMINTON ATHLETES
Authors: Liu Yunzhao , Liu Li
Published: February 2023

ABSTRACT Introduction: The proportion of tactical activities athletes perform through explosive strength is relatively high in the authentic game of badminton. And weight training has the effect of improving the explosive power of players. Objective: Study the effects of weight training incorporated with explosive strength training on badminton players. Methods: The article adopts a controlled experiment, in which the control group practices standardized explosive strength training in training activities. In contrast, the experimental group has the addition of weightlifting exercises using sandbags in its protocol. The experiment was performed completely according to the dedicated badminton teaching plan for freshmen, lasting eight weeks. Results: Before the intervention, the wrist joint speed in the experimental group was 11.76 km/h, and the final speed was 162.30 km/h. After the experiment, the joint velocity increased to 12.35 km/h, and the final velocity to 177.50 km/h. Conclusion: The addition of 10% weight training showed statistical benefits to explosive strength training, and its implementation in usual protocols is indicated to improve the indicators of explosive strength in athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF BODY POSTURE TRAINING ON AEROBIC PERFORMANCE
Authors: Xie Liyuan
Published: February 2023

ABSTRACT Introduction: The intensity of daily training increases with the development of aerobics, presenting a series of requirements for students’ body posture and sports performance. Objective: Study the effect of postural training on the performance of university students practicing aerobics. Methods: The experiment lasted nine weeks, performed three times a week. The control group was trained according to traditional aerobics teaching, while the experimental group was introduced to practice dance movements based on aerobics training to strengthen postural teaching. Results: The total performance score of the experimental group before the experiment was 70.32 points, which rose to 80.19 points, representing an increase of 12.30%; the initial performance score of the control group was 68.13 points, rising to 75.32 points, an increase of 9.54%. Conclusion: Body posture training can optimize students’ physical fitness and flexibility, improving their artistic expression skills and aerobic expression scores, and should be promoted. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
CARDIOPULMONARY ENDURANCE AND FITNESS TRAINING STRATEGIES FOR OBESE ADOLESCENTS
Authors: Zhang Xue , Zheng Xiangping
Published: February 2023

ABSTRACT Introduction: Reducing the risk of obesity and maintaining healthy lifestyle habits and physical exercise is very important for adolescents in a crucial period of their development. Objective: Study the effect of physical training on cardiopulmonary resistance and physical fitness in obese adolescents. Methods: Fourteen overweight or obese adolescent students were selected from a school. The experiment lasted four weeks, and the experimental group received a systematic and professional physical training intervention, with two aerobic and two endurance training sessions each week. The control group did not perform any physical exercises except free activities in physical education classes. Results: After four weeks of training, the BMI index of the experimental group changed from 32.84 to 27.68, systolic blood pressure also changed from 118.14mmHg to 93.93mmHg, and diastolic blood pressure was from 69.83mmHg to 55.34mmHg. Conclusion: Elevating professional physical training in adolescents’ physical education has shown to be an important attitude to reduce and prevent obesity and its comorbidities. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
ANALYSIS OF JOINT INJURIES AND MOVEMENT SKILLS IN COLLEGE BASKETBALL
Authors: Zeyu Lin
Published: February 2023

ABSTRACT Introduction: Reducing the risk of joint injuries is especially important in combative contact sports such as basketball. Objective: Analyze the joint injuries of college basketball students and outline methods of improving sports skills to prevent sports injuries. Methods: The experimental group used a specific training for basketball skills training and knee joint recovery. The control group remained in ordinary basketball training, lasting 60 minutes, thrice a week for eight weeks. Results: The experimental group increased their squat level from 1.83 to 2.14 after the experiment; in terms of hurdles, there was a change from 2.09 to 2.62, the experimental group increased from 1.37 to 2.48, and in terms of active lower limb lifting, the experimental group increased from 2.19 to 2.72 after the test. Conclusion: The training presented showed a clear effect on the recovery of knee joint function and improvement in the competitive level of college basketball athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
POSTURAL BALANCE ON BASKETBALL INJURIES
Authors: Zhang Dayao , Wu Feng
Published: February 2023

ABSTRACT Introduction: Contemporary basketball has become more competitive and aggressive in the competition process, increasing the corresponding sport's risks. Objective: Analyze the injury risks arising from basketball and study the effects that postural balance training has on them. Methods: A controlled experiment was conducted, in which the experimental group used balance training and the control group used general physical training. Each training lasted one hour, twice a week, and the experimental period was nine weeks. Results: The total FMS scores of the two groups were improved before and after sports training, and the FMS scores of the control group were raised from 14.71 to 15.15, showing no significant difference (P>0.05). The total FMS score in the experimental group increased from 14.38 to 17.69, much higher than the experimental group. It was found that there was a very significant difference. Conclusion: The method proposed in this paper can effectively increase the postural balance ability of athletes, thus reducing the risk of sports injuries in the development of sports. Level of evidence II; Therapeutic studies - investigation of treatment results.
ANALYSIS AND PREVENTIVE MEASURES FOR NON-CONTACT INJURIES IN SOCCER
Authors: Xiao Lin
Published: February 2023

ABSTRACT Introduction: Soccer is characterized by high intensity and great competitiveness, and several sports injuries frequently occur; one of the main categories of injuries is the non-contact ones. Objective: Study the situation of non-contact injuries in soccer and analyze its preventive measures. Methods: The experimental group adopted the intermittent training method to strengthen the proprioception and coordination ability of the athletes. In contrast, the control group adopted mainly traditional aerobic training, with a 40-day duration. Results: Among non-contact injuries in soccer sports, lower limb sprain and joint injuries represented an eminently serious proportion. After preventive exercise, the total FMS test score of the experimental group was 16.75 points, an increase of 26.03%, and that of the control group was 14.14 points, an increase of 3.49%. The performance of the experimental group was significantly improved. Conclusion: The sports training mode proposed in this study significantly reduces the probability of non-contact injuries during sports. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF FUNCTIONAL TRAINING ON THE PERFORMANCE OF SEDENTARY COLLEGE STUDENTS
Authors: Li Jiajing , Liu Min
Published: February 2023

ABSTRACT Introduction: One focus of current research by frontline physical education teachers has always been the elective teaching of college students who do not play sports. Lack of training time and poor student training make many professional badminton teaching methods impossible for elective courses. Objective: Study the impact of functional training on the badminton performance of college students. Methods: Forty-four sedentary college students were randomly selected and equally divided into the experimental and control group. The functional training strategy was used in the experimental group, while the control group used the traditional badminton training method. The experimental and control groups were trained twice weekly for 60 minutes and 12 weeks. The data obtained were compared, analyzed, and discussed statistically. Results: In terms of the FMS test, the total score of the experimental group was optimized by 5.61, and the total score of the control group was optimized by 3.20. Regarding badminton performance, the experimental group showed an increase of 23.12 points, while the control group increased 16.75 points (P<0.01), indicating a very significant difference in the results. Conclusion: This work evidenced the importance of promoting functional training, which is superior to the current sports teaching methods. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
ANALYSIS OF HITTING METHOD AND WRIST STRENGTH OF STUDENT TENNIS PLAYERS
Authors: Ke Li
Published: February 2023

ABSTRACT Introduction: Wrist joint strength is important in tennis for angle control and racquet direction. Objective: Study the changes in muscle strength in the wrist region and the characteristics of joint movement under different tennis stroke styles. Methods: 50 students from a professional tennis club team at a university were selected as study subjects, and systematic professional wrist strength training was performed in the experimental group. In contrast, routine training was performed in the control class. The experimental training lasted for six weeks. During this period, the learning time of all groups remained the same, and no additional training or learning was added. Results: The experimental group's stability increased significantly, from 1.78 ± 0.67 to 2.25 ± 1.34 before training, and backstroke strength increased significantly, from 6.21 to 10.21; total stroke score also increased from 8.02 to 12.69. Conclusion: Improving wrist strength in tennis students may improve overall sports performance. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
New species and new records of Ichneumonidae (Hymenoptera) in Southeast Brazil
Authors: Victorino B. I. , Penteado-Dias A. M. , Dias Filho M. M.
Published: February 2023

Abstract During an inventory of Ichneumonidae wasps in the urban area of São Carlos, São Paulo, using Malaise traps, was found the first records in Brazil for Lissonota pseudeleboea Ugalde and Gauld, 2002 and Syzeuctus vedoris Ugalde and Gauld, 2002 (Hymenoptera, Ichneumonidae, Banchinae) and was described and illustrated a new species of Zonopimpla Ashmead (Hymenoptera, Ichneumonidae, Pimplinae).
A comprehensive sustainable development framework; community capitals and village-cooperative initiative
Authors: Mohammadi A. , Omidi Najafabadi M. , Poursaeed A.
Published: February 2023

Abstract Considering the cooperative sector capabilities in organizing rural people, primarily focusing on empowering manpower and adopting a sustainable approach to basic resources (water and soil), village-cooperative initiative has emerged as a new concept by registering and forming 4565 new cooperatives in Iran’s rural regions. The present research which was conducted in two qualitative and quantitative phases designed a new model by integrating the new village-cooperative approach along with the sustainable livelihood’s framework theory. The study sample of the qualitative phase included 32 theorists of the village-cooperative initiative. To analyze the data, the grounded theory and three-step process of open coding, axial coding and selective coding were used using MAXqda18 software. Finally, a paradigm model was designed whose most important components included causal conditions (shocks and seasonal conditions), contextual conditions (trends and governmental support), intervening conditions (control and market development), central categories (sustainable livelihoods with a village- cooperative approach), strategies (coping and adaptation) and consequences (creating jobs, establishing cooperatives, supporting smart agriculture and strengthening social capital). The statistical quantitative phase population consisted of cooperatives members in the village-cooperative initiative (N=405), being selected through Cochran's formula with proportional sampling method summing up to198 people from 5 provinces. The data collection tool was a researcher-made questionnaire whose validity and reliability were confirmed. The Bayesian structural equation modeling was used to analyze the data. The results of the research quantitative phase showed that the variables of financial capital, physical capital, social capital, coping and adaptation strategies, human capital and natural capital were the most effective variables on village-cooperative initiative members’ sustainable livelihoods, respectively. Finally, a hybrid model based on the qualitative and quantitative studies was designed and suggestions were made; for instance, the creation of suitable grounds for off-farm activities such as rural industries and ecotourism.
Non-agricultural income, infrastructure and access to consumer goods in rural households in the northeast and south
Authors: Mesquita Daiane Felix Santiago , Nascimento Carlos Alves do , Lima Patrícia Veronica Pinheiro Sales
Published: February 2023

Abstract: The objective of this article is to analyze the impact of non-farm income on infrastructure conditions and access to durable consumer goods for rural families in the Northeast and South of Brazil. For this purpose, microdata from the Household Sample Survey (PNAD) from 2002 to 2015 were used. The methodology consisted of the construction of an index of household infrastructure and access to consumer durables and of the estimation of a quantile regression to verify the effect of labor income on this index. The results showed that families who practice pluriactive and nonfarm activities had higher average incomes, compared to agricultural families. However, the impact of income on the variables analyzed was greater in the group of poorer rural families, regardless of the activity practiced and the region. In other words, pluriactive and nonfarm activities can contribute, at first, to promote significant changes in a context of precariousness. However, they are unable to generate enough income to contribute to structural changes in better equipped households.
Assessment of the neuropsychomotor development of HIV-exposed infants using the ICF model
Authors: Pádua Raissa Felipe , Sá Cristina dos Santos Cardoso de
Published: February 2023

ABSTRACT This study aimed to systematize and build a checklist with tools to assess child development according to the biopsychosocial model of the International Classification of Functioning, Disability, and Health (ICF) of infants exposed to HIV, aged from 4 to 12 months. This is an observational, analytical, and longitudinal study. Bayley-III Scale of Infant and Toddler Development; Affordances in the Home Environment for Motor Development-Infant Scale; Brazilian Criteria of Economic Classification; and infant’s history used in the assessment were described according to the ICF domain categories. The tools used in this study include the components of body structure and functions; activities and participation; environmental and personal factors. The description of the assessment tools in the child development of infants exposed to HIV-by the constructs and domains of the ICF-allowed for the construction of clinical reasoning during the assessment, emphasizing the surveillance of child development and functioning in their first year of life.
Diagnóstico da doença de Alzheimer: recomendações do Departamento Científico de Neurologia Cognitiva e do Envelhecimento da Academia Brasileira de Neurologia
Authors: Schilling Lucas Porcello , Balthazar Marcio Luiz Figueredo , Radanovic Márcia , Forlenza Orestes Vicente , Silagi Marcela Lima , Smid Jerusa , Barbosa Breno José Alencar Pires , Frota Norberto Anízio Ferreira , Souza Leonardo Cruz de , Vale Francisco Assis Carvalho , Caramelli Paulo , Bertolucci Paulo Henrique Ferreira , Chaves Márcia Lorena Fagundes , Brucki Sonia Maria Dozzi , Damasceno Benito Pereira , Nitrini Ricardo
Published: February 2023

RESUMO Este artigo apresenta o consenso realizado pelo Departamento Científico de Neurologia Cognitiva e do Envelhecimento da Academia Brasileira de Neurologia sobre os critérios diagnósticos da Doença de Alzheimer (DA) no Brasil. Foi realizada uma revisão da literatura e dos critérios clínicos e de pesquisa para DA, sendo propostos protocolos para o diagnóstico de DA em níveis de atenção primária, secundária e terciária. Dentro deste cenário clínico, são apresentados os critérios diagnósticos para DA típica e atípica, além de instrumentos de avaliação clínica, cognitiva e funcional; bem como propedêutica complementar com exames laboratoriais e de neuroimagem. A utilização de biomarcadores é também apresentada, tanto para o diagnóstico clínico em situações específicas quanto para pesquisa.