bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Utang Pemerintah, PMA, Ekspor, Inflasi dan Pertumbuhan Ekonomi dengan Pendekatan Panel VAR
Authors: Abdillah Khubbi
Published: February 2023

This study aims to determine the causality relationship between variables, impulse response and variance decomposition of sources of development financing for a country in Asia from macroeconomic variables, namely government debt, foreign investment (FDI), exports, inflation and economic growth using the Panel VAR method and the operation of the STATA software. The impulse response results show that the shock of the government debt variable and inflation was responded positively by the economic growth variable. FDI and export variables responded negatively by the economic growth variable. The results of variance decomposition show that the export variable is a driving factor for economic growth in the Asian region.
Update on Indonesia’s East Java Province: Still a Case of ‘Balanced Development’?
Authors: McMichael Heath
Published: February 2023

Since the 1980s, surveys have portrayed East Java Province as an economic success story, with high levels of growth spread across all major sectors in rural as well as urban settings. East Java appears a victim of its own success with large-scale investors in the processed food sector considering relocating to Central Java where minimum wages are lower. In terms of domestic investment, housing, industrial estates and offices (27 per cent), transportation and warehousing (14 per cent) and food (8 per cent) were the main destinations in Q1 22. In Q2 2022, the principal sources of foreign investment were the United States (43 per cent, comprising mainly PT Freeport Indonesia’s Rp 5 trillion realised investments in its Gresik copper smelter), Hong Kong (19 per cent), Singapore (15 per cent) and Japan (9 per cent). Another aspect of the balanced development thesis was that trade was not the driving force in growth. That still seems to be so. Input-output analysis appears to show that the province’s surplus is actually not very large – suggesting a high degree of complementarity between East Java’s agricultural, manufacturing and export sectors. While the balanced development thesis was never meant to imply that East Java’s regions had experienced a uniform stage of development, it is possible to identify ‘winners’ and ‘losers’ within the province. So, what is East Java’s future trajectory and does it continue to deserve a reputation for balanced development? In terms of investment, balance may still be the hallmark of provincial development. In order to navigate through the ‘middle-income trap’, the province will need to invest more in human capital to foster entrepreneurship, productivity and wellbeing. Management of the provincial economy will be increasingly difficult as the intricate and complex nexus of politics and business in the province evolves.
Suntingan Teks Bait Nazam Kitab Muhafadhatu Al-Sibyaan: Sebuah Pendekatan Filologis
Authors: Taufiq Mirwan Akhmad , Wafa Rimayul , Hasanah Durrotul , Syaikhu Ahmad , Bakhruddin Mukhammad
Published: February 2023

Naskah-naskah Arab-Pegon berbahasa Jawa masih digunakan sebagai literatur di pesantren. Beberapa teks kuna berbahasa daerah tersebut merupakan karya kiai pengasuh pondok yang masih menggunakan wazan bahr bahasa Arab, kombinasi nazam unik bahasa Jawa dan bahasa Arab. Penelitian ini mengungkap naskah kitab Muhafadhatu al-Sibyaan karya Muhaimin bin Jamroh dan Zainudin Tamsir pada sisi konten, nilai yang terkandung dalam kitab tersebut. Pola penyajian tema-tema gramatika bahasa Arab dan relevansi penggunaannya dalam pendidikan bahasa Arab di era milenial. Penelitian ini menggunakan metode kualitatif dengan pendekatan kajian filologi. Konsep dan langkah analisa menggunakan konsep kerja Edward Djamaris terkait penentuan sasaran penelitian, observasi pendahuluan, deskripsi naskah, transliterasi naskah, penyuntingan, penerjemahan teks, dan nilai-nilai kandungan naskah. Hasil penelitian ditemukan kolaborasi indah antara bahasa Jawa dan bahasa Arab; nazam berbahasa Jawa, wazan berpola bahasa Arab, bahar rajaz. Materi nazam bukan hasil terjemahan utuh namun cuplikan beberapa kitab klasik nahwu yang dipadu dengan nasehat-nasehat luhur kehidupan. Nazam ini lebih tepat diajarkan kepada anak-anak berasal dari suku Jawa. Nazam Jawa ini menunjukkan sumbangsih penulis untuk memenuhi pendidikan yang berbasis kearifan lokal dalam mengajarkan kaidah-kaidah bahasa Arab.
Eugeniusza Romera zabiegi o odbudowę i bezpieczny kształt granic niepodległej Polski
Authors: Mroczko Marian
Published: February 2023

This article presents Eugeniusz Romer (1871–1954), a great humanist and patriot, world-famous scientist, one of the most prominent Polish geographers of the first part of the 20th century, a founder of modern Polish cartography, author of many maps and atlases, and an outstanding climatologist and glaciologist. He was also interested in hydrography, geomorphology, regional and economic geography and the influence of geographic phenomena on social and economic life, and was the first scientist to point at a link between geography and politics, and Poland’s geopolitical location and her relations with neighbours. Since his early years he had been very active politically and socially. He lived in the middle of great social and political transformations, wars and revolutions, shaping Poles social and national awareness, Polish independence fight, battles for territories and the future nature of Poland – in all those events he also took an active part.
Industrial policy, techno-nationalism and Industry 4.0: China-USA technology war
Authors: DIEGUES ANTONIO CARLOS , ROSELINO JOSÉ EDUARDO
Published: February 2023

ABSTRACT This paper aims to analyze the evolution of the technology war between China and the USA in a context of exacerbation of techno-nationalist strategies for industrial and technological development. This analysis refers mainly to the Chinese strategy to deploy Industry 4.0 and the implications derived from US imposed restrictions on Chinese efforts to develop indigenous technologies that are central in the forthcoming paradigm. The hypothesis is that such policies, by boosting Industry 4.0, aim to create a new techno-economic paradigm and thus reconfigure the bases of inter-capitalist and interstate competition. The main contribution to the literature is providing an analysis of the implications of the technology war between China and the USA in different layers of the Industry 4.0 techno-economic paradigm, in addition to the mainstream debate about the transition to 5G communication networks.
Disassembled structures: the political economy of Mexico’s leading auto export sector
Authors: CYPHER JAMES M. , CROSSA MATEO
Published: February 2023

ABSTRACT Mexico’s current export-led economy arose from the adoption of a market-driven model based in conditions of technological disarticulation separating dominant transnational firms from the national industrial base. This determined that, in contrast to Verdoorn’s analysis, the crucial manufacturing sector would function not as a motor-force inducing a process of autonomous national development by accelerating productivity growth and promoting product and process innovations, but rather would deepen a fragmented process of production, centered on processing imported components under conditions of declining total factor productivity. Despite the profound reordering of its economic geography over the past 30 years, this process has failed to produce legitimate markers of “upgrading”.
The effects of infrastructure and public investment on the elasticity of private investment: an empirical investigation for Brazil
Authors: FRAGA JEFFERSON S. , FERREIRA-FILHO HELDER LARA
Published: February 2023

ABSTRACT This study estimates the determinants of the elasticities of private investment and total investment for the Brazilian economy for the period between 1960 and 2013. It uses a Bayesian model averaging and weighted-average least-squares approach with a flexible accelerator model of investment equation and Kalman filtering techniques. We conclude that the aggregate infrastructure index (taken from the main component analysis) and public investment crowd-in private investment. The results indicate that private investment is constrained by the availability of bank credit. Furthermore, we find that infrastructure stock and public investment are two of the main determinants of the elasticities of private investment. This demonstrates that public investment, mainly in infrastructure, is of great importance in raising the sensitivity of private investment in the Brazilian economy.
A Classical-Post Keynesian critique on neoclassical environmentally-adjusted multifactor productivity
Authors: GUARINI GIULIO
Published: February 2023

ABSTRACT The aim of the article is to critically analyze Environmentally-Adjusted Multifactor Productivity (EAMP), by considering the Classical-Post-keynesian environmental framework Ecological Macroeconomics, integrated with the Evolutionary Environmental Economics. The paper introduces EAMP as rooted in in neoclassical economics and derived from Cobb-Douglas function with natural resources built by Solow (1974). I present theoretical critiques of EAMP’s neoclassical assumptions by developing perspectives from heterodox Ecological Macroconomics literature. Finally, I discuss the shortcomings of EAMP’s conceptual framework, making specific reference to the policy debate on Porter Hypothesis. The article puts in evidence how the assumptions of constant returns to scale, perfect competition and perfect input substitutability seriously alter the meaning and promise of sustainability policy. The analysis indicates that EAMP is a poor instrument to study complex issues regarding the promotion and effectiveness of green innovations and should therefore be abandoned to face the great challenges regarding the process of ecological transformation.
Import tariffs: the neutralization of the Dutch disease argument
Authors: BRESSER-PEREIRA LUIZ CARLOS
Published: February 2023

ABSTRACT In economics, there is just one argument legitimising import tariffs - the infant industry argument -, but it ceases to be valid as the required learning time ends. This note offers a second argument: the neutralisation of the Dutch disease argument. If the country faces this competitive disadvantage, import tariffs and export subsidies may be a way of circumventing the problem. Many countries that industrialised were only successful because they pragmatically neutralised the disease with import tariffs.
The Brazilian ‘secular stagnation’: Its causes and an agenda to overcome it
Authors: FERRARI FILHO FERNANDO , TERRA FABIO
Published: February 2023

ABSTRACT The article has two goals. First, it describes and analyses the reasons for the Brazilian ‘secular stagnation’ between 2015 and 2021. Second, it outlines an agenda to assure the Brazilian macroeconomic stability and social development, defined as sustainable economic growth, inflation under control, fiscal and external equilibria and income distribution.
Family grief during the COVID-19 pandemic: a meta-synthesis of qualitative studies
Authors: Sola Pamela Perina Braz , Souza Carolina de , Rodrigues Elaine Campos Guijarro , Santos Manoel Antônio dos , Oliveira-Cardoso Érika Arantes de
Published: February 2023

The COVID-19 pandemic has led to a public health crisis, with increases in the number of deaths. As a result, the number of bereaved people has increased significantly. In addition, the measures adopted to control the spread of virus have triggered changes in the subjective and collective bereavement experiences. This systematic literature review aims to summarize and reinterpret the results of qualitative studies on the experience of losing family members during the pandemic by a thematic synthesis. The searches were performed in the Web of Science, Scopus, PubMed/MEDLINE, CINAHL, PsycINFO, and LILACS databases. Among 602 articles identified, 14 were included. Evidence was assessed using the Critical Appraisal Skills Programme tool. Two descriptive themes related to the objective were elaborated in addition to one analytical theme, namely: “Pandemic grief: lonely and unresolved”. These themes proved to be interrelated and indicate that experiences of loss in this context were negatively impacted by the imperatives of physical distance, restriction of hospital visits, technology-mediated communication, and prohibition or restriction of funerals. These changes resulted in experiences marked by feelings of loneliness and helplessness, which should be considered when planning intervention strategies that favor communication between family members with the afflicted loved one and with the health care team, enabling welcoming and creating alternatives for farewell rituals. The findings may support further research to test intervention protocols, especially to guide public policies and promote psychological support to bereaved family members after their loss.
Law compliance, why do we need it? Comparative data from the Brazilian National Survey of School Health (PeNSE) on adolescents’ access to cigarettes
Authors: Szklo André Salem , Bertoni Neilane
Published: February 2023

In recent decades, Brazil has made significant progress in fighting the tobacco epidemic. However, recent national data suggest a probable stagnation in the reduction of smoking initiation among youth and adolescents. The objective of this study was to evaluate the evolution over time of compliance with the law that prohibits the sale of cigarettes to minors in Brazil. To this end, data from the Brazilian National Survey of School Health conducted in 2015 and 2019 were used. Percentages were estimated for “sequential” indicators created by combining answers to the questions “Did anyone refuse to sell you cigarettes?” and “How did you obtain your cigarettes?” There was a decrease between 2015 and 2019 in the percentage of smokers aged 13 to 17 who tried to buy cigarettes in the 30 days prior to the survey (72.3% vs. 66.4%; p-value ≤ 0.05). However, regardless of the survey year, approximately 9 out of 10 adolescent smokers were successful in an attempt to buy cigarettes. Of those, approximately 7 out of 10 used direct purchase as the main method of obtaining cigarettes, with purchases at licensed commercial establishments (vs. street vendors) increasing between 2015 and 2019 (81.1% vs. 89.6%; p-value ≤ 0.05). In 2019, 70% of teenagers who bought cigarettes at licensed commercial establishments purchased single cigarettes. Non-compliance with laws aimed at preventing smoking initiation is a huge obstacle to reducing the proportion of smokers. Increased implementation of legislative measures and oversight of cigarettes sales, combined with educational and awareness actions with retailers, is key to protecting new generations from the harmful effects of tobacco use.
Eficácia das medidas domiciliares de desinfecção da água para consumo humano: enfoque para o contexto de Santarém, Pará, Brasil
Authors: Jesus Francisca Oliveira de , Bentes Valéria de Sousa , Segura-Muñoz Susana Inés , Meschede Marina Smidt Celere
Published: February 2023

Na região Amazônica, cidades como Santarém, no Estado do Pará, Brasil, ainda carecem de Estações de Tratamento de Água para atender toda a população. Nesses locais, medidas domiciliares de desinfecção da água são importantes para preservar a potabilidade e evitar efeitos indesejáveis na saúde. Este estudo avaliou experimentalmente o efeito das medidas domiciliares na eliminação de Escherichia coli em amostras de água. As técnicas avaliadas para esse trabalho foram: (i) hipoclorito de sódio 2,5%; (ii) fervura; (iii) filtro de cerâmica; e (iv) exposição solar. Foram testadas amostras, combinando-se diferentes concentrações de E. coli (entre 3 e 100 unidades formadoras de colônias/100mL). Os resultados mostraram que as medidas domiciliares de desinfecção foram eficazes na eliminação da E. coli, com exceção do filtro de cerâmica, cujas amostras de água, mesmo após a filtragem, apresentaram-se positivas para o crescimento da bactéria. Considerando que a distribuição da água tratada não chega à maior parte da população que reside em Santarém e em áreas periurbanas, como em comunidades quilombolas e ribeirinhas, o uso das medidas como hipoclorito de sódio 2,5%, fervura e exposição solar poderão favorecer a promoção da saúde e diminuir a ocorrência de surtos de doenças diarreicas veiculadas pela água.
S53P4 BIOACTIVE GLASS PUTTY IN THE LOCAL TREATMENT OF CAVITARY CHRONIC OSTEOMYELITIS
Authors: REIS GABRIELA NAGY BALDY DOS , CUBA GABRIEL TROVA , TARGA WALTER HAMILTON DE CASTRO , MIRAS PAULO SÉRGIO CONTADOR , BONGIOVANNI JOSÉ CARLOS , SALLES MAURO JOSÉ , REIS FERNANDO BALDY DOS , DELL’AQUILA ADRIANA MACEDO
Published: February 2023

ABSTRACT Objective: Evaluating the clinical results of bioactive glass S53P4 putty for the treatment of cavitary chronic osteomyelitis. Methods: Retrospective observational study, including patients of any age with clinical and radiological diagnosis of chronic osteomyelitis, who underwent surgical debridement and implantation of bioactive glass S53P4 putty (BonAlive® Putty, Turku, Finland). Patients who underwent any plastic surgery on the soft tissues of the affected site or had segmental bone lesions or septic arthritis were excluded. Statistical analysis was performed using Excel®. Demographic data, as well as data on the lesion, treatment, and follow-up, were collected. Outcomes were classified as “disease-free survival,” “failure,” or “indefinite.” Results: This study included 31 patients, of which 71% were men and had with a mean age of 53.6 years (SD ± 24.2). In total, 84% were followed-up for at least 12 months and 67.7% had comorbidities. We prescribed combination antibiotic therapy for 64.5% of patients. In 47.1%, Staphylococcus aureus was isolated. Finally, we classified 90.3% of cases as “disease-free survival” and 9.7% as “indefinite.” Conclusion: Bioactive glass S53P4 putty is safe and effective to treat cavitary chronic osteomyelitis, including infections by resistant pathogens, such as methicillin-resistant S. aureus. Level of Evidence IV, Case Series.
TREATMENT OF RECURRENT ANTERIOR SHOULDER DISLOCATION USING THE LATARJET TECHNIQUE
Authors: MALAVOLTA EDUARDO ANGELI , SOUZA JORGE ANTONIO BASTOS DE , ASSUNÇÃO JORGE HENRIQUE , GRACITELLI MAURO EMILIO CONFORTO , SILVA FERNANDO BRANDÃO DE ANDRADE E , FERREIRA NETO ARNALDO AMADO
Published: February 2023

ABSTRACT Objective: To describe the functional results, recurrence rate, postoperative radiographic appearance, and complications of patients undergoing the Latarjet procedure over 24 months. Methods: Retrospective case series, including adult patients with recurrent traumatic anterior glenohumeral dislocation undergoing the Latarjet procedure. We clinically evaluated patients preoperatively by the Rowe score and at six, 12, and 24 months after the procedure. The positioning, consolidation, and resorption of the graft were analyzed by plain radiography. The recurrence rates and other complications were also described. Results: We analyzed 40 patients (41 shoulders). The Rowe score median increased from 25 before surgery to 95 at 24 months after surgery (p < 0.001). We observed graft resorption in three cases (7.3%) and consolidation in 39 (95.1%). Most grafts presented adequate placement. We observed two recurrences (4.8%), one case of dislocation and one of subluxation. Seven patients (17.1%) had a positive apprehension test. The study had no cases of infection, neuropraxia, or graft breakage. Conclusion: Latarjet surgery is a safe and effective procedure in the treatment of recurrent anterior dislocation of the shoulder. This surgery enables a statistically significant improvement according to the Rowe score, with a low number of recurrences. Level of Evidence IV, Case Series.
Síntese Conjunta do compósito nanoestruturado Fe2O3-SnO2 pelo método poliol e seu desempenho fotocatalítico no descoramento da rodamina-B
Authors: Bertuzzo Vinícius Lima , Carvalho Neto Alberto Vieira de , Santos Dayse Iara dos
Published: February 2023

RESUMO Compósitos formados de óxidos semicondutores têm sido sintetizados e testados quanto às suas propriedades e aplicações, também, como fotocatalisador de restauração de aquíferos por meio da degradação ou descoramento de corantes orgânicos. Foi preparado o nanocompósito Fe2O3-SnO2 pelo método Poliol, técnica não encontrada para este compósito até o momento na literatura, em refluxo em etilenoglicol. O compósito e os óxidos isolados foram sintetizados pelo mesmo processo, caracterizados e avaliados como fotocatalisadores da Rodamina-B em solução aquosa (10 mg.L⁻1). Os materiais coletados após o refluxo realizado em intervalos de tempo de 1 h e 8 h geraram Fe2O3 e SnO2, respectivamente e foram analisados por TGA/DTA e por DRX. Constatou-se a obtenção de α-Fe2O3 a 400 °C e do SnO2 a 650 °C. O compósito foi tratado a 700 °C por 1 h. A MEV comprovou a formação de um compósito nanoestruturado com nanopartículas de SnO2. As curvas BET indicaram materiais não porosos com áreas superficiais de 18, 45 e 20 m2.g⁻1 para as amostras preparadas de Fe2O3, SnO2 e o compósito, respectivamente. Os band gaps estimados em 1,9 eV, 3,5 eV e 1,8 eV, na mesma sequência anterior. Os ensaios de descoramento de Rodamina-B, pH 5,5 em exposição a luz visível e ultravioleta, mostraram propriedades completamente diferenciadas. As partículas de Fe2O3 mostraram adsorção física capaz de reduzir a absorção luminosa em 75% nos 15 minutos iniciais, porém não houve o descoramento ao longo dos 75 minutos seguintes. A presença do SnO2 na solução mostrou descoramento máximo de 45% após 120 minutos. O descoramento obtido pelo nanocompósito em 180 minutos foi de 20%, resultado atribuído ao total recobrimento da superfície das partículas do α-Fe2O3 pelas nanopartículas de SnO2, impedindo tanto a adsorção física do corante sobre o óxido de ferro como o andamento do mecanismo de absorção da luz seguido da degradação do corante.
EFFECTS OF RUNNING COMBINED WITH MUSCULAR TRAINING OF THE ABDOMINAL CORE
Authors: Yang Weichao
Published: February 2023

ABSTRACT Introduction: Running has specific effects on different areas of the human body, and the sagittal angular variation of the hip, knee, and ankle joints is widely explored. In addition to accelerating body metabolism, it can also improve body shape. Recent studies have revealed that running can also improve athletes’ muscular strength of the abdominal core. Objective: Explore the effects of running combined with muscle training on the abdominal center strength of athletes. Methods: It investigated the effects of 3 different running intensities on athletes’ abdominal core muscle strength. Computerized kinematic motion capture technology was used to measure the impacts of running on 18 young volunteers. The sagittal planes of the hip, knee, and ankle joints were evaluated. Abdominal center muscle strength was assessed during running. Results: Running particularly affected the combined contraction rate of the tibial, gluteal, and soleus muscles. The correlation between speed, muscle activation, and joint angle was also analyzed. Conclusion: Athletes tend to adjust the angle and frequency of joint movements to reduce fatigue. It was noted can have the ability to control muscle strength in different regions of the abdominal core. The research results establish a theoretical basis for the effectiveness of abdominal core muscle strength performance in athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF COMPOUND TRAINING ON MOTRICITY AMONG BASKETBALL PLAYERS
Authors: Xie Yanpu , Zhou Huijuan
Published: February 2023

ABSTRACT Introduction: In kinematics, one can measure the strength of movement ability by the time it takes to move a certain distance and the speed of movement of a person by the speed of displacement. Objective: To study the effect of compound training on the mobility of basketball players. Methods: A comparative experimental study was carried out on the sensitivity of basketball players, lasting 8 weeks. There were 30 basketball-playing volunteers randomly divided into two groups, while the control group performed routine activities. The control group implemented a training protocol composed of a ladder and ropes allied to conventional training. Results: After the experiment, the technical level of motricity in the control group and the experimental group showed differences over the result before the experiment (P<0.05), and the experimental group showed a very significant difference (P<0.01), improving their performance after the experiment. There are significant differences in the effects of different sensitivity training methods, the experimental group using rope ladder training methods greatly improved their foot agility and motor skill. Conclusion: Composite training involving a ladder and rope has a superior effect on the development of motor skill, ability, and foot agility in basketball players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
HIGH-INTENSITY PHYSICAL TRAINING FOR CHINESE BOXING ATHLETES
Authors: Jiang Xiaoming
Published: February 2023

ABSTRACT Introduction: The activities and competitions related to Chinese boxing continue to grow after its visibility as the national quintessence of the Chinese tradition. A specific training method for its practitioners is necessary to improve its quality and efficiency. Objective: Develop a high-intensity physical training method specific to Chinese boxing athletes. Methods: 130 athletes were volunteers in this research, randomly divided into an experimental group and a control group, both groups trained twice a week on Mondays and Thursdays, each training 90 minutes, for a total of 8 weeks. The experimental group was directed to the sport-specific high-intensity physical training protocol, while the control group practiced traditional training. The two groups underwent a comparative analysis of physical fitness indicators specific to Chinese boxing. Results: The experimental group showed a significant improvement in the test after the experiment, with a 12.32% increase in efficiency compared to the control group. The control group's results showed no statistical improvement, showing a slight decrease, with a rate of decrease of −0.58%. Conclusion: After eight weeks of training, the physical training protocol and high intensity directed to Chinese boxing athletes showed a significant impact on the flexibility and strength of its practitioners, is recommended its use. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
QUALITY OF TRAINING IN COMPETITIVE TENNIS SPORTS
Authors: Zhang Yihang
Published: February 2023

ABSTRACT Introduction: The current challenge in tennis training in China is the integration with technology because, with the existing training methods, coaches and players pay little attention to strategies using a simple and retrograde tactical training method. Solutions need to be created to meet the development requirements of modern tennis. Objective: This paper aims to analyze tennis players’ technical level, tactical characteristics, and training methods in sports competitions. Methods: Eight male tennis players were randomly selected as research volunteers. The various tactics employed by the subjects under competition were observed. Based on the collected data, a mathematical-statistical analysis of the tennis players’ technical usage and training performance was prepared. Results: The athletes in this study could use various offensive tactics during and after the experiment. The athletes have a strong offensive baseline and can use a combination of speed, spin, and positioning to restrict each other during the competition. However, there were significant differences in the players’ awareness of offensive tactics on defense (P<0.05). Conclusion: Most athletes perform consistently and heterogeneously in stalemate tactics. A weakness noted was that most athletes are not showing good efficiency in scoring when stalemate presents opportunities. The results of this study can improve the scoring rate of tennis players. At the same time, this study's findings may strengthen tennis players’ ability to control the game during sports competitions. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
MARTIAL ARTS FITNESS TRAINING IN UNIVERSITIES
Authors: Peng Xiang
Published: February 2023

ABSTRACT Introduction: Physical fitness training is essential for performing tactical training and improving performance in martial arts competitions, and is a critical element in improving the speed, strength, and endurance of its athletes. Objective: This paper explores the effect of physical fitness training on the main tasks of university martial arts practitioners. Methods: By selecting 16 university martial arts practitioners as volunteers, they received 12 weeks of physical fitness training, whereas only the experimental group received the specially designed martial arts fitness training. The athletes’ stability and strength were measured before and after the training application, and their data were analyzed through the statistical method. Results: In the eight-level abdominal bridge test, the experimental group's results were significantly improved compared to the control group (P<0.05). There were significant differences in the pre and post-tests of athletes of different levels in the eight-level abdominal bridge test (P<0.05). Exercise training significantly improved the performance of both groups of athletes (P<0.05). Conclusion: The specially designed martial arts fitness training combined with routine training can effectively improve university students’ fitness and technical level. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
IMPACTS OF AEROBIC EXERCISE ON THE PHYSICAL FITNESS OF SHOT PUT ATHLETES
Authors: Du Xiaojuan , Song Yifan , Liu Wei
Published: February 2023

ABSTRACT Introduction: Shot put is a competitive sport that combines speed, strength, and explosiveness. Training the skill with aerobic exercise has attracted the attention of many coaches and scholars on competitive sports training. Shot put is a fast-powered activity, and its shooting speed is the determining factor for sports performance. It is believed that aerobic exercise can improve the ability of its practitioners. Objective: To analyze the impacts of aerobic exercise on the physical fitness of shot put athletes. Methods: 18 shot put athletes were randomly selected as volunteers for research that consisted of a random division between experimental and control groups. The experimental group received a protocol involving aerobic training, while the control group received regular training before, during, and after the experiment. The maximal strength and explosive power of the two groups of athletes were tested before and after the intervention, and mathematical-statistical methods were used to process the collected data. Results: The maximum strength index of both groups was improved; however, the improvement in the experimental group was statistically relevant(P<0.05). The values of the pressure index, power, and balance of the athletes from the experimental group were statistically altered to those before the experiment (P<0.01). Conclusion: The implementation of aerobic exercise in the routine of shot put athletes can effectively improve the performance in the sport and the special abilities of its practitioners. The training method analyzed was also shown to improve specific performance in the shot put athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF FUNCTIONAL TRAINING ON THE HITTING QUALITY OF TENNIS PLAYERS
Authors: Liu Bichuan , Yi Yan
Published: February 2023

ABSTRACT Introduction: Functional training values the athletes’ physical activity and the integral exercise proper of the practiced sport. Tennis frequently integrates this exercise into regular training, aiming to enrich teaching. Objective: Compare the effects of functional training in daily exercise on the tennis players’ strokes based on the athletes’ performance. Methods: A research sample of 18 young male tennis players in tennis clubs were used. The volunteers were randomly divided into two groups, control and experimental. The control group received traditional physical training methods in their daily training. The experimental group had functional physical training added to their daily training. Before and after training, the ITN and functional movement screening methods were used to study the hitting quality of the tennis players. Finally, a mathematical and statistical analysis of the results ascertained in the tests was performed. Results: After 12 weeks, the mean level and accuracy of the experimental group were significantly higher (P<0.05). The control group showed a slight improvement in the mean level and ball accuracy but without statistical significance (P>0.05). Conclusion: Functional training associated with regular training positively improved the quality of hitting in tennis players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
INJURY PREVENTION IN THE TRAINING OF TRIPLE JUMP ATHLETES
Authors: Cao Suqin , Wang Hui
Published: February 2023

ABSTRACT Introduction: The triple jump technique is one of the techniques of the most difficult sport in athletics, requiring extremely high physical qualities such as muscular strength, explosive power, and coordination capacity of athletes. Training its young practitioners should prioritize the specific teaching of sports techniques and the prevention of injuries intrinsic to the sport. Objective: Promote preventive interventions in training young triple jump athletes. Methods: The research method was used with interviews with athletes, coaches, and specialists. A statistical analysis was performed to identify the most relevant injuries in the sport. A protocol of preventive activities to be added to the athletes’ training was elaborated through the data obtained. Results: A survey of young triple jumpers in sports schools in some cities in Province A found that there were 62 junior triple jumpers, of which 48 had injuries, the injury rate was 77.4%, and the injury rate of junior triple jumpers was relatively high, mainly in the knee. After analyzing the factors that cause sports injuries, it is shown that by rationalizing the training plan for the triple jump and the scientific content of training, athletes gradually increase their adaptability and self-protective ability to the influence of external factors, mastering the methods of prevention and rehabilitation of sports injuries of the knee. Conclusion: The preventive interventions presented allow triple jump athletes to maintain their best competitive state and create competitive results at the professional level. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF FUNCTIONAL TRAINING ON PHYSICAL FITNESS OF TRACK AND FIELD RUNNERS
Authors: Li Ke
Published: February 2023

ABSTRACT Introduction: The use of functional strength training in running training allows athletes to produce a continuous development behavior improving their various functional and competitive abilities. Objective: Study the effect of functional training on the physical quality of runners in track and field. Methods: Six athletes were selected whose changes in parameters of the technical index of the hurdle stage before and after training were analyzed to explore the influence of functional training on the specific technique of the hurdle stage. Results: In the fitness test items of the 6 athletes, the performances of 30 meters, 100 meters, triple standing jump, and backward ball throw were increased by 0.02 seconds, 0.09 seconds, 0.09 meters, and 0.20 meters, respectively, compared to the average before training. An average improvement of 2.50 points was shown in functional movement screening scores. Conclusion: Functional training can improve the physical quality of athletes, positively helping athletes’ obstacle course running performance. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF JUMP ROPE TRAINING ON EXPLOSIVE POWER IN BADMINTON PLAYERS
Authors: Tang Jiping
Published: February 2023

ABSTRACT Introduction: After implementing the national fitness program in China, badminton has attracted the participation of the general public, consolidating itself as a national weight loss program. Objective: Study the effects of jump rope training on explosive power in badminton players. Methods: Thirty-six young athlete volunteers were selected and divided into groups A and B to conduct an intervention study on jump rope training. All students’ intensity and exercise time were strictly controlled to ensure the validity of the results. Validated fitness tests, including the endurance index, were used to check the impacts of training. Results: There was no significant difference in endurance and speed between students in groups A and B before the experiment (P>0.05). The endurance and speed of students in groups A and B after the experiment were significantly different (P<0.05). Conclusion: Adding jump rope training to badminton physical training can effectively improve the explosive power and speed in the lower limbs of its athletes. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
SUPERISOMETRIC AQUATIC TRAINING IN THE PHYSICAL PREPARATION OF SOCCER PLAYERS
Authors: Wu Hao
Published: February 2023

ABSTRACT Introduction: With the growing importance of physical training over sport training for competition, more research has been conducted. One of the least explored techniques is superisometric aquatic training. Objective: Study the application of super-isometric aquatic training to the physical training of soccer athletes. Methods: A literature review was performed to elaborate an experimental protocol. The experimental method was conducted on 24 university volunteers randomly divided into control and experimental groups. Classical training was conducted for two weeks between the groups, superisometric aquatic training was added only in the experimental group. Through the mathematical-statistical method, a comparative analysis of the research results was elaborated, and the effects of the intervention were discussed. Results: The movement time of the athletes in the experimental training group was reduced by 1.89s. The performance of running, tapping, standing jump, and weightlifting tests is not significantly different from those of the traditional strength training group. Conclusion: The application of superisometric aquatic training in the physical preparation of soccer players increased the overall strength of athletes,and also beneficially influenced specific activities of the sport. It is recommended to analyze the characteristics of the athlete and integrate superisometric training to general strength traispecificcally to the need of each athlete. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF HIGH-INTENSITY TRAINING ON ENDURANCE IN BASKETBALL PLAYERS
Authors: Wang Lina , Wang Jianyu
Published: February 2023

ABSTRACT Introduction: The aerobic endurance training of sports athletes has become the focus of research in institutions and related units. One of the recent proposals is high-intensity interval training to develop athletic aerobic endurance. Objective: Study the effect of high-intensity interval training on aerobic endurance in basketball players. Methods: Fifteen athletes from a university were randomly selected and divided into a high-intensity interval training group, a moderate-intensity continuous training group, and a low-intensity continuous training group, with the control of external influence factors. The indicators analyzed were the average aerobic endurance index of maximal oxygen consumption, average anaerobic capacity, and average maximal power output. The data were obtained before and after the experiment. They were compared and discussed using statistical analysis. Results: The average maximal oxygen consumption in the three training groups increased significantly, and the effect was most evident under the high-intensity intermittent training conditions. This training method could increase the maximal exercise time of the normal groups by up to two times. Conclusion: Intermittent high-intensity training can effectively improve the aerobic endurance of basketball players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
PRE-COMPETITION PSYCHOLOGICAL TRAINING IN COLLEGE JUMPING ATHLETES
Authors: Cheng Feng
Published: February 2023

ABSTRACT Introduction: The psychological state generates great effects on the athletes’ results. Adequate psychological preparation in sports before competitions is fundamental for good performance. The high jump athlete tends to strengthen his physical training during pre-competition practice. However, due to the difficulty of psychological control, emotional variations may occur that significantly limit the technical level of his presentation. Objective: Analyze the psychological training program of college high jumpers on physical fitness and competition performance. Methods: The physical fitness and competition situation of 22 college high jumpers in track and field are discussed. In this paper, 11 cases were randomly selected as the experimental group, and the remaining 11 cases were used as a control group. There was no involvement in directed mental training. The control group received regular exercise training, while the experimental group had regular physical training accompanied by directed psychological training. The fitness and competition results in both groups of athletes before and after the test were evaluated statistically. results: There was a significant difference in presentation performance between the experimental and control groups (P<0.05). Improvements in physical performance were significant in the experimental group. Conclusion: Strengthening psychological training in athletes proved to be a critical factor in improving competition effectiveness. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
STRENGTHENING TRAINING METHODS FOR MOTOR PERCEPTION ABILITY IN TENNIS
Authors: Sun Xiaodong
Published: February 2023

ABSTRACT Introduction: Specialized perception in tennis is simply learning the “feel of the ball”. Expertise refers to whether a player can handle and control the ball as he wishes, also known as fitness. Objective: Study the effect and mechanism of motion tracking training to improve the perception training methods of tennis players. Methods: This paper conducts a temporal experiment on 38 professional tennis players divided into two groups. The experimental group used optokinetic tracking training for tracking and feedback on their movements. The control group received no interventional treatment. Players’ perception and brainwave data at different training times were recorded and analyzed. results: The subjects in the experimental group had high accuracy in discriminating the spatial location of the ball. The experiment produced a significant occipital M1 signal after the 360ms trial. The M2 signal in the occipital region also had noticeable main effects in each period. The level of the M2 signal in the experimental group showed an increase. Conclusion: Visual motion tracking training has been shown to significantly impact tennis players’ perception. This training can improve tennis players’ perceptual ability, proving to be an ally in strengthening current training methods. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
EFFECTS OF ACCELERATION ON SKILL LEVEL IN SKIERS
Authors: Ma Chao , Sun Juntao
Published: February 2023

ABSTRACT Introduction: In a “U” shaped field, the skier must take off using snow slides in a determined territory, using the distribution of his body mass over his feet to control the direction, completing a variety of complex movements inherent to aerial sports. Objective: Study the effect of acceleration on skiers’ skill levels. Methods: Peak moment angle and range of motion were measured in 12 U-shaped cross-country snow ski athletes with an average training period of over 5 years. The isokinetic muscle strength test parameters were analyzed with the characteristics and abilities inherent to the sport. The corresponding range of motion and the angle of acceleration were determined. The results were confronted with a literature search and discussed afterward. results: The peak torque and relative peak torque of the flexor and extensor muscle groups on both sides of the athletes’ hip and knee joints reduced with increasing angular velocity; the maximum peak torque of the extensors was significantly greater than that of the flexors at the same velocity (P﹤0.05). The current scientific literature predicted this inversely proportional relationship, but the angles obtained had not been explored. Conclusion: Athletes should pay attention to improving cognitive ability and active adjustment ability to complete their technical movements, promoting the development of controlled acceleration required by snow sports. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
TRAINING BY THE PROGRESSIVE LIFTING OF LOAD IN YOUNG SOCCER PLAYERS
Authors: Yan Bizheng , Huang Yongyue , Zhou Qian
Published: February 2023

ABSTRACT Introduction: Among the main characteristics of soccer are a long-time of competition and its intensity; its athletes quickly alternate between attack and defense, executing distinct intensities of exercise and manding a high level of physical conditioning. Objective: Verify the impacts of training with progressive load elevation on young soccer athletes. Methods: Fifty students from the soccer special class 2019 of the School of Physical Education were selected as volunteers for the experiment. They were randomly divided into the experimental and control group. The experimental group received a physical training program with progressive load lifting, while the control group received a conventional training program. The experiment lasted 45 minutes daily, three times a week for ten weeks. The fitness index was checked before and after the experiment, and the data were statistically analyzed to verify the influence of the special progressive load lifting training on the physical training of young soccer players and the feasibility of its application in physical training. results: The index scores of the vertical jump and 30m fast run tests were slightly higher than those of the control group (P>0.05). The mean scores of the experimental and control groups were 15.02 and 15.56, and the standard deviations were 1.07 and 0.93, respectively. Conclusion: The experiment's performance in tests of speed, strength, agility, and endurance showed improvements in varying degrees. Among them, the indicators of endurance and sensitivity showed significant differences, indicating that physical training by progressive load elevation can effectively promote the development of endurance and agility in young soccer players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.