cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.20017443.v1
title: Does socioeconomic status mediate the association between adiposity and musculoskeletal fitness in boys?

description: We aimed to estimate the prevalence of high body adiposity and its association with musculoskeletal fitness in male children and adolescents according to socioeconomic status. A cross-sectional epidemiological study was carried out with 1,531 school children (6-17 years old) attending public schools in Cascavel, state of Paraná, Brazil. Body adiposity was estimated based on skinfold thickness. Information was also collected on chronological age, socioeconomic status, sexual maturation, performance in physical tests such as sit and reach, 1-minute sit-up, stationary long jump and Shuttle run. Statistical analyses were performed (Student's unpaired t test and Poisson regression) taking into consideration socioeconomic status (high and low+middle), with p&lt;0.05. High body adiposity was observed in 30.4% of the sample, and was greater (p&lt;0.05) among those of high socioeconomic status (33.3% vs 28.3%). After adjustment for all variables, high body adiposity was associated with low abdominal resistance (PR=1.44; CI95%=1.05-1.99) and lower limb power (PR=2.09; CI95%=1.46-1.98) in the low socioeconomic status group. In the high socioeconomic status group, the outcome was associated with low abdominal resistance (PR=1.72; CI95%=1.17-2.51) and with intermediate (PR=2.83; CI95%=1.76-4.55) and low (PR=3.90; CI95%=2.38-6.38) lower limb power. In both socioeconomic levels, lower musculoskeletal fitness (abdominal resistance and lower limb power) was associated with high body adiposity. However, the magnitude of the association between muscular capacity and high body adiposity seems to differ according to socioeconomic status.
DOI: 10.6084/m9.figshare.20017444
title: Analysis of the trends of creatine kinase levels during the preseason of a professional soccer team

description: Physical exercises can result in tissue damage on the muscular system, including during the preseason, which is a period of physical training aiming subsequent competitions. The aim of this study was to analyze the behavior of plasma CK as a marker of muscle damage during preseason of a professional soccer team; determine when preseason CK levels reach their peak value; and verify CK concentration on preceding moment to the first official match of the season. Professional soccer players (n = 31) attended this study (24.3 ± 3.9 years, 181.0 ± 7.0 cm, 9.1 ± 1.3%GC and 66.0 ± 4.5 mLO2/kg/min). The plasma concentration of CK was determined at the beginning of the preseason (M1), 4 (M2), 10 (M3) and 15 (M4) days after. We identified CK values of 178.2 ± 12.0, 540.0 ± 59.1, 389.8 ± 49.5, 408.7 ± 45.0 U/L for M1, M2, M3 and M4 respectively. The peak concentration of CK occurred on M2 (p&lt;0.05). The analysis of the behavior of plasma CK revealed increased levels throughout the preseason of a professional soccer team compared to the holiday period. The peak value of CK was reached on the 4th day of preseason. The concentration of CK on the day prior to the first official match of the season proved to be in the range of values recommended for professional players.
DOI: 10.6084/m9.figshare.20017444.v1
title: Analysis of the trends of creatine kinase levels during the preseason of a professional soccer team

description: Physical exercises can result in tissue damage on the muscular system, including during the preseason, which is a period of physical training aiming subsequent competitions. The aim of this study was to analyze the behavior of plasma CK as a marker of muscle damage during preseason of a professional soccer team; determine when preseason CK levels reach their peak value; and verify CK concentration on preceding moment to the first official match of the season. Professional soccer players (n = 31) attended this study (24.3 ± 3.9 years, 181.0 ± 7.0 cm, 9.1 ± 1.3%GC and 66.0 ± 4.5 mLO2/kg/min). The plasma concentration of CK was determined at the beginning of the preseason (M1), 4 (M2), 10 (M3) and 15 (M4) days after. We identified CK values of 178.2 ± 12.0, 540.0 ± 59.1, 389.8 ± 49.5, 408.7 ± 45.0 U/L for M1, M2, M3 and M4 respectively. The peak concentration of CK occurred on M2 (p&lt;0.05). The analysis of the behavior of plasma CK revealed increased levels throughout the preseason of a professional soccer team compared to the holiday period. The peak value of CK was reached on the 4th day of preseason. The concentration of CK on the day prior to the first official match of the season proved to be in the range of values recommended for professional players.
DOI: 10.6084/m9.figshare.20017446
title: Relationship between origin of shot and occurrence of goals in competitive men's water polo matches

description: Although some similar studies exist in water polo, there are no reports showing a possible association between the occurrence of goals and the origin of shots. The objective of this study was to correlate the origin of shot and the occurrence of goals in an official men's water polo match. Nine teams that competed in seven final matches of the Third National Men's Water Polo League were evaluated. The games were recorded using a camera installed along the length of the pool. Pearson's chi-square test was used to correlate the categorical variables studied. The effect size was calculated by the ratio between the chance of occurrence of a center goal and the chance of occurrence of a goal scored from the lateral position. An α value &lt; 0.05 was adopted in all cases. There was a significant association between the occurrence of goals and origin of shot, with X2 (2) = 14.89 and p = 0.001, i.e., the proportion of goals scored from the center position was higher than that of goals scored from the lateral position. A center shot was 2.70 times more likely to be converted to a goal by the attacker. It can be concluded that a center shot presented a higher chance to be converted to a goal. This finding might be explained by the inability of the technical-tactical defense to organize, permitting closer proximity of the attackers. The same situation does not seem to apply to high-level technical-tactical matches.
DOI: 10.6084/m9.figshare.20017447
title: Golden Age Gym: reasons for entry, permanence and satisfaction among participating older adults

description: Fitness facilities are being implemented in many public parks and older adults have benefited from the promotion of exercise at these sites. The objective of this study was to describe the perception of older adults participating in the Golden Age Gym program (Programa Academia da Melhor Idade - AMI) in the city of Joinville, Santa Catarina, Brazil, in terms of the reasons to enter and remain in this program, satisfaction, and suggestions regarding the services provided. A total of 163 older adults (117 women and 46 men) participating in 15 AMIs installed in public places in Joinville were interviewed. Data were collected by semi-structured interview. Descriptive statistics and thematic content analysis were used for quantitative and qualitative data, respectively. Intrinsic motivation was the predominant factor for the entry and permanence of older adults in the AMIs, particularly the pursuit of health (entry) and perceived benefits of exercise (permanence). The encouragement of others was the main extrinsic motivational factor for entry and socialization was the main reason to remain in the AMIs. The participants were satisfied with the service provided and with the infrastructure, but suggest improvements such as an increase in the number of fitness activities, training of instructors, installation of public restrooms, drinking fountains, and covered facilities. It was concluded that older people mainly present intrinsic motivations to enter and remain in the AMIs. The majority older adults is satisfied, but recommend improvement of human resources and infrastructure that would permit the implementation of new strategies designed to promote exercise in public places and to attend a larger number of users.
DOI: 10.6084/m9.figshare.20017447.v1
title: Golden Age Gym: reasons for entry, permanence and satisfaction among participating older adults

description: Fitness facilities are being implemented in many public parks and older adults have benefited from the promotion of exercise at these sites. The objective of this study was to describe the perception of older adults participating in the Golden Age Gym program (Programa Academia da Melhor Idade - AMI) in the city of Joinville, Santa Catarina, Brazil, in terms of the reasons to enter and remain in this program, satisfaction, and suggestions regarding the services provided. A total of 163 older adults (117 women and 46 men) participating in 15 AMIs installed in public places in Joinville were interviewed. Data were collected by semi-structured interview. Descriptive statistics and thematic content analysis were used for quantitative and qualitative data, respectively. Intrinsic motivation was the predominant factor for the entry and permanence of older adults in the AMIs, particularly the pursuit of health (entry) and perceived benefits of exercise (permanence). The encouragement of others was the main extrinsic motivational factor for entry and socialization was the main reason to remain in the AMIs. The participants were satisfied with the service provided and with the infrastructure, but suggest improvements such as an increase in the number of fitness activities, training of instructors, installation of public restrooms, drinking fountains, and covered facilities. It was concluded that older people mainly present intrinsic motivations to enter and remain in the AMIs. The majority older adults is satisfied, but recommend improvement of human resources and infrastructure that would permit the implementation of new strategies designed to promote exercise in public places and to attend a larger number of users.
DOI: 10.6084/m9.figshare.20017449
title: Prevalence and factors associated with overweight in adults - Brazil, 2008-2009

description: The worldwide overweight prevalence showed a rapid increase in recent decades, featuring a true global epidemic. The aim of this study was to determine the overweight prevalence (BMI ≥ 25kg/m2) and possible associations with socioeconomic and demographic indicators for adults in Brazil. This epidemiological study analyzed data from the population of adults aged 20-59 years (n = 101 308 637) included in the 2008-2009 Brazilian Family Budget Survey (POF) conducted in all geographic regions of Brazil. The nutritional status assessment used the Body Mass Index, which was categorized as normal weight and overweight according to cutoff points recommended by the World Health Organization. As socioeconomic and demographic indicators, sex, age, color-race, education, income, and geographic region were analyzed. Crude and adjusted Poisson regression was performed. The results showed that the overweight prevalence was 47.7%, and the groups with the highest prevalence were adults aged 20-59 years, males, black skin color, schooling from 6 to 9 years , income of 1/4 ≥ minimum wage &lt;1/2 and living in Southern Brazil. Almost half of adults in Brazil are overweight. Strategic actions aimed at reducing the overweight prevalence among adults in Brazil are needed to combat the obesity epidemic.
DOI: 10.6084/m9.figshare.20017449.v1
title: Prevalence and factors associated with overweight in adults - Brazil, 2008-2009

description: The worldwide overweight prevalence showed a rapid increase in recent decades, featuring a true global epidemic. The aim of this study was to determine the overweight prevalence (BMI ≥ 25kg/m2) and possible associations with socioeconomic and demographic indicators for adults in Brazil. This epidemiological study analyzed data from the population of adults aged 20-59 years (n = 101 308 637) included in the 2008-2009 Brazilian Family Budget Survey (POF) conducted in all geographic regions of Brazil. The nutritional status assessment used the Body Mass Index, which was categorized as normal weight and overweight according to cutoff points recommended by the World Health Organization. As socioeconomic and demographic indicators, sex, age, color-race, education, income, and geographic region were analyzed. Crude and adjusted Poisson regression was performed. The results showed that the overweight prevalence was 47.7%, and the groups with the highest prevalence were adults aged 20-59 years, males, black skin color, schooling from 6 to 9 years , income of 1/4 ≥ minimum wage &lt;1/2 and living in Southern Brazil. Almost half of adults in Brazil are overweight. Strategic actions aimed at reducing the overweight prevalence among adults in Brazil are needed to combat the obesity epidemic.
DOI: 10.6084/m9.figshare.20017452
title: Physical fitness in children with probable developmental coordination disorder and normal body mass index

description: Changes in body mass index (BMI) due to various factors, such as a low level of physical activity, are often associated with poor physical fitness in children with probable developmental coordination disorder (pDCD). This study examined whether children with pDCD would show poorer performance in terms of physical fitness when compared with their typically developing (TD) peers. Thirty two children with pDCD and normal BMI and other 32 children with TD and normal BMI, matched by gender, age and BMI, performed the sit and reach, standing long jump, curl-up, modified pull-up and 9-min run tests. The children in the pDCD group showed lower explosive power, muscle strength and endurance, and cardiorespiratory fitness than children in the TD group. Overall, children with pDCD had lower levels of physical fitness, even with normal BMI.
DOI: 10.6084/m9.figshare.20017452.v1
title: Physical fitness in children with probable developmental coordination disorder and normal body mass index

description: Changes in body mass index (BMI) due to various factors, such as a low level of physical activity, are often associated with poor physical fitness in children with probable developmental coordination disorder (pDCD). This study examined whether children with pDCD would show poorer performance in terms of physical fitness when compared with their typically developing (TD) peers. Thirty two children with pDCD and normal BMI and other 32 children with TD and normal BMI, matched by gender, age and BMI, performed the sit and reach, standing long jump, curl-up, modified pull-up and 9-min run tests. The children in the pDCD group showed lower explosive power, muscle strength and endurance, and cardiorespiratory fitness than children in the TD group. Overall, children with pDCD had lower levels of physical fitness, even with normal BMI.
DOI: 10.6084/m9.figshare.20017453
title: Influence of number of days and valid hours using accelerometry on the estimates of physical activity level in preschool children from Recife, Pernambuco, Brazil

description: A few studies have proposed the number of hours/day and the number of days of monitoring that should be completed to obtain good quality accelerometry data for preschool children. The aim of this study was to analyze how the estimates of physical activity levels and sample profiles (demographic and anthropometric data) vary according the use of different criteria to define valid monitoring periods. Children (n=180) aged three to five years were randomly selected among participants from a longitudinal study performed in Recife, Brazil. Children wore a GT1M Actigraph accelerometer on the right waist during a period of seven days, including the weekend days, using 15 s epochs. A total of 176 children were included in the study (52.8% boys; mean age of 4.3 years [s=0.8]). Using the criterion of 10+ hours/day of wearing time to define a valid monitoring day, 67.0% (n=118) and 36.9% (n=65) of the children showed 3+ and 5+ valid days, respectively. When the criterion of 5+ hours/day was used, the time spent in moderate activity was approximately 10 minutes shorter than when the criterion of 10+ hours/day was used. The criterion of 10+ hours/day for defining a valid monitoring day leads to a sample size reduction and the criterion of 5+ hours/day underestimates the moderate activity level.
DOI: 10.6084/m9.figshare.20017453.v1
title: Influence of number of days and valid hours using accelerometry on the estimates of physical activity level in preschool children from Recife, Pernambuco, Brazil

description: A few studies have proposed the number of hours/day and the number of days of monitoring that should be completed to obtain good quality accelerometry data for preschool children. The aim of this study was to analyze how the estimates of physical activity levels and sample profiles (demographic and anthropometric data) vary according the use of different criteria to define valid monitoring periods. Children (n=180) aged three to five years were randomly selected among participants from a longitudinal study performed in Recife, Brazil. Children wore a GT1M Actigraph accelerometer on the right waist during a period of seven days, including the weekend days, using 15 s epochs. A total of 176 children were included in the study (52.8% boys; mean age of 4.3 years [s=0.8]). Using the criterion of 10+ hours/day of wearing time to define a valid monitoring day, 67.0% (n=118) and 36.9% (n=65) of the children showed 3+ and 5+ valid days, respectively. When the criterion of 5+ hours/day was used, the time spent in moderate activity was approximately 10 minutes shorter than when the criterion of 10+ hours/day was used. The criterion of 10+ hours/day for defining a valid monitoring day leads to a sample size reduction and the criterion of 5+ hours/day underestimates the moderate activity level.
DOI: 10.6084/m9.figshare.20017455
title: The influence of positional release therapy on the myofascial tension of the upper trapezius muscle

description: The objective of this study was to analyze the influence of positional release therapy (PRT) on the myofascial tension of the upper trapezius muscle with an active myofascial trigger point (TrP). We studied 30 subjects (18 men and 12 women), mean age 34.5 ± 9.4 years, with an active TrP in the upper trapezius muscle on one side. A search for TrPs was performed bilaterally and the points were considered to be active when both local and referred pain evoked by manual palpation reproduced a deep aching and burning pain. The patients were evaluated under three conditions: (a) resting baseline, (b) concentric contraction and (c) isometric contraction, before and after treatment with PRT, regarding the following parameters: (i) pain intensity during manual palpation (visual analogue pain scale) and (ii) upper trapezius muscle electromyographic (EMG) signals. A significant decrease in painful symptoms from 5.3 ± 1.9 to 2.8 ± 1.8 (p &lt; 0.001) was observed after treatment. There were no significant differences in EMG signals during resting baseline and in the presence of concentric contraction after the PRT session. It was concluded that PRT may be an effective treatment for pain relief and to reduce resting baseline EMG signals in the upper trapezius muscle with a TrP, suggesting that its use as an alternative or an adjunct to other therapies. The effectiveness of this type of treatment should be confirmed by further clinical studies.
DOI: 10.6084/m9.figshare.20017455.v1
title: The influence of positional release therapy on the myofascial tension of the upper trapezius muscle

description: The objective of this study was to analyze the influence of positional release therapy (PRT) on the myofascial tension of the upper trapezius muscle with an active myofascial trigger point (TrP). We studied 30 subjects (18 men and 12 women), mean age 34.5 ± 9.4 years, with an active TrP in the upper trapezius muscle on one side. A search for TrPs was performed bilaterally and the points were considered to be active when both local and referred pain evoked by manual palpation reproduced a deep aching and burning pain. The patients were evaluated under three conditions: (a) resting baseline, (b) concentric contraction and (c) isometric contraction, before and after treatment with PRT, regarding the following parameters: (i) pain intensity during manual palpation (visual analogue pain scale) and (ii) upper trapezius muscle electromyographic (EMG) signals. A significant decrease in painful symptoms from 5.3 ± 1.9 to 2.8 ± 1.8 (p &lt; 0.001) was observed after treatment. There were no significant differences in EMG signals during resting baseline and in the presence of concentric contraction after the PRT session. It was concluded that PRT may be an effective treatment for pain relief and to reduce resting baseline EMG signals in the upper trapezius muscle with a TrP, suggesting that its use as an alternative or an adjunct to other therapies. The effectiveness of this type of treatment should be confirmed by further clinical studies.
DOI: 10.6084/m9.figshare.20017458
title: Cardiorespiratory response and energy expenditure during exercise at maximal lactate steady state

description: There has been little research regarding cardiorespiratory responses during submaximal exercise at the maximal lactate steady state intensity (MLSSint) until exhaustion. The objective of this study was to investigate the responses of oxygen consumption (VO2), heart rate (HR) and oxygen pulse (O2 pulse) during exercise to exhaustion at MLSSint, and to compare energy expenditure (EE) estimated by VO2 and HR. Twelve trained athletes followed an incremental protocol on a cycle ergometer to determine maximal and submaximal parameters of aerobic metabolism. On subsequent occasions they performed 2 to 4 30-minute tests with constant load to identify MLSSint. Finally, they underwent a test to exhaustion at MLSSint. Cardiorespiratory parameters were measured continuously during all tests. During the test to exhaustion, physiological responses were compared for six points in time calculated as percentages of the time to exhaustion (TTE). Mean TTE was 55.1±10.2 min. Oxygen pulse presented significant reduction over time, decreasing to a value 9% lower than baseline at the exhaustion point. This fact was the result of increases in HR over time that was disproportional to the increase in VO2, resulting in significant differences between EE estimates. Therefore, there appears to be a gradual loss of cardiorespiratory efficiency during exercise to exhaustion at MLSSint that is shown by the reduction in O2 pulse. The direct relationship between VO2 and HR with workload presents variations over the course of exercise, leading to errors when EE is estimated using HR.