Navegando por Palavras-chave "Team sports"

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    Functional Screening Tests: Interrelationships and Ability to Predict Vertical Jump Performance
    (Georg Thieme Verlag Kg, 2018) Loturco, Irineu [UNIFESP]; Pereira, Lucas Adriano; Kobal, Ronaldo; Cal Abad, Cesar Cavinato; Komatsu, William [UNIFESP]; Cunha, Ronaldo [UNIFESP]; Arliani, Gustavo [UNIFESP]; Ejnisman, Benno [UNIFESP]; Pochini, Alberto de Castro [UNIFESP]; Nakamura, Fabio Yuzo; Cohen, Moises [UNIFESP]
    There are several methods used in sports science to identify asymmetries in athletes, given their purported relevance to injury prevention and performance optimization. We aimed to verify whether asymmetries provided by isokinetic assessments, jump tests, and tensiomyography (TMG) are associated with each other, and whether their respective functional indices are related to jumping ability. TMG parameters, unilateral and bilateral squat-jump (SJ) and countermovement-jump (CMJ) performances, and peak torque in knee-extension and flexion with angular velocities of 60 (o)/s and 300(o)/s for twenty-four soccer players were retained for analyses. Asymmetry was detected by examining the percentage difference between dominant and non-dominant legs. The median-split technique was used to identify the best and worst performers in SJ and CMJ tests. Results revealed that the asymmetries detected in the three different methods were not interrelated. Curiously, better performances in SJ and CMJ tests were associated with higher asymmetry levels. Furthermore, only the knee-extension peak torque at both angular velocities was correlated moderately to largely (r=0.48-0.66) with jump performance. Despite their recognized ability to predict the risk of injury, the absence of interrelationships between TMG, isokinetic tests, and unilateral jumps precludes their single use as a unique functional screening diagnostic. Finally, and very importantly, lower-limb asymmetry is not necessarily related to impaired vertical jump performance in soccer players.
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    Heavy episodic drinking and soccer practice among high school students in Brazil: the contextual aspects of this relationship
    (Biomed Central Ltd, 2013-03-20) Bedendo, Andre [UNIFESP]; Opaleye, Emerita Satiro [UNIFESP]; Andrade, Andre Luiz Monezi [UNIFESP]; Noto, Ana Regina [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Background: Heavy episodic drinking (HED) (consumption of five or more drinks on the same occasion) among adolescents is related to several problems and partaking in sport or physical activities has been suggested as an option to prevent or reduce alcohol consumption among this population. the aim of this study was to investigate the relationship between soccer practice and heavy episodic drinking among high school students from Brazil.Methods: Data were obtained from a cross-sectional study among a representative sample of public and private high school students from all Brazilian state capitals (N=19,132). Only students aged from 14 to 18 who reported having taken part in soccer practice, other team sports or non-practicing sports in the last month were included. Characteristics of sport practice (frequency and motivation) and HED in the last month (type of drink; where and with whom they drank; frequency of HED) were also considered. Regression models were controlled for sociodemographic variables.Results: for all groups studied most of the students reported drinking beer, with friends and at nightclubs or bars. Soccer practice was associated to HED when compared to non-practicing sports and to other team sports. Compared to other team sports, playing soccer for pleasure or profession, but not for keep fit or health reasons, were more associated to HED. Frequency of soccer practice from 1 to 5 days per month and 20 or more days per month, but not from 6 to 19 days per month, were also more associated to HED.Conclusions: the relationship between soccer and HED appears to be particularly stronger than in other team sports among adolescents in Brazil. Induced sociability of team sports practice cannot be assumed as the main reason for HED among soccer players. Possibly these results reflect the importance of a strong cultural association between soccer and beer in Brazil and these findings should be integrated to future prevention or intervention programs.