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Abstract(s)
O presente estudo procurou analisar os efeitos de 8 semanas de prática de
diferentes aulas de grupo na aptidão física e composição corporal em adultos.
Doze adultos saudáveis com idades compreendidas entre os 32 e 66 anos (média
± desvio-padrão: 47.00 ± 8.99 anos, 1.64 ± 0.08 m de altura e 69.50 ± 8.30 kg de
massa corporal) voluntariaram-se para participar no estudo. Foram realizadas
avaliações de composição corporal, nomeadamente parâmetros biométricos (i.e.:
massa corporal, massa muscular, massa gorda e índice de massa corporal), e de
aptidão física, nomeadamente a força (i.e.: lançamento de bola medicinal de 3 kg
e salto vertical de contramovimento) e aptidão cardiorrespiratória (i.e.: YMCA 3-
min step test) no início e no final de 8 semanas. Foram encontradas diferenças
significativas nas variáveis de força muscular, mais concretamente na força
explosiva de membros superiores. Apesar de não terem sido denotadas alterações
significativas, verificou-se um efeito moderado e positivo no salto vertical e na
resposta cardiorrespiratória. Contudo, não foram verificadas alterações nas
variáveis de composição corporal. Com este estudo, conclui-se que um período de
treino de 8 semanas de prática de diferentes modalidades de aulas de grupo, pelo
menos 1x por semana, poderá contribuir na melhoria da aptidão física, de forma
particular no que se refere à força explosiva de membros superiores. Mais
alterações poderão provavelmente ocorrer com a realização de mais aulas (ex.:
frequência semanal e/ou duração do programa de intervenção).
The purpose of this study was to analyze the effects of 8 weeks of the practice of different group classes in physical fitness and body composition in adults. Twelve healthy adults aged from 32 to 66 years old (mean ± SD: 47.00 ± 8.99 years, height 1.64 ± 0.08 m, and body mass of 69.50 ± 8.30 kg) voluntarily participated in this study. The evaluation of body composition, namely biometrical parameters (i.e., body mass, muscle mass, fat mass, and body mass index), the physical fitness, specifically strength parameters (i.e., 3 kg medicine ball throw and countermovement vertical jump) and the cardiorespiratory fitness parameter (i.e., YMCA 3-min step test) were conducted before and after 8 weeks of training. Significant differences in strength parameters, more specifically, explosive strength in upper limbs were found. Even though no significant differences in other variables were reported, a moderate and positive effect size in countermovement vertical jump and the cardiorespiratory response was found. However, no differences were verified in the variables of body composition. In this study, it was possible to conclude that an 8-week period of different fitness group classes, at least once a week, can be helpful to improve physical fitness, more specifically in explosive strength in upper limbs in adults. More changes will likely occur with more classes performed (e.g., weekly frequency and/or duration of the intervention program).
The purpose of this study was to analyze the effects of 8 weeks of the practice of different group classes in physical fitness and body composition in adults. Twelve healthy adults aged from 32 to 66 years old (mean ± SD: 47.00 ± 8.99 years, height 1.64 ± 0.08 m, and body mass of 69.50 ± 8.30 kg) voluntarily participated in this study. The evaluation of body composition, namely biometrical parameters (i.e., body mass, muscle mass, fat mass, and body mass index), the physical fitness, specifically strength parameters (i.e., 3 kg medicine ball throw and countermovement vertical jump) and the cardiorespiratory fitness parameter (i.e., YMCA 3-min step test) were conducted before and after 8 weeks of training. Significant differences in strength parameters, more specifically, explosive strength in upper limbs were found. Even though no significant differences in other variables were reported, a moderate and positive effect size in countermovement vertical jump and the cardiorespiratory response was found. However, no differences were verified in the variables of body composition. In this study, it was possible to conclude that an 8-week period of different fitness group classes, at least once a week, can be helpful to improve physical fitness, more specifically in explosive strength in upper limbs in adults. More changes will likely occur with more classes performed (e.g., weekly frequency and/or duration of the intervention program).
Description
Keywords
Aptidão Cardiorrespiratória Adultos Aptidão Física Aulas de Grupo Composição Corporal Força Explosiva