Joint mobility/muscular chain elasticity in a cohort of 9- to 11-year school children exposed to a specifically designed professionally guided training

Purpose: Joint mobility is a fundamental part in physical activity program for children, but a scientific characterization of the methods to improve the articular mobility in healthy children is still poor. The aim of this study was to investigate whether joint mobility/muscular elasticity were related to a merely active lifestyle or could be significantly improved in the presence of a collective, easy-to-perform, but specifically designed and professionally guided program. Methods: Specific functional and anthropometric parameters were single-blind tested on 277 children (aged 9–11 years). 148 were randomly assigned to a physical education program specifically designed to increase elasticity and supervised by professionals (treated group), while 129 (control group) continued their usual physical activity at school, with no specific program. Results: Specific tests were performed and showed a significant improvement of joint mobility compared to non-specific physical activity in 9- to 11-year children. As a secondary end-point, this program was effective also in children of overweight/obese BMI category. Conclusions: These results, building on those from this and other groups, should orientate decision-makers in the area of physical exercise for primary school children towards specifically designed programs based on demographic and anthropometric data

Análise do tempo de reação e do estado cognitivo em idosas praticantes de atividades físicas

Este estudo tem por objetivo verificar a correlação entre o tempo de reação e o estado cognitivo de idosas praticantes de atividades físicas. Foram avaliadas 77 idosas (68,6 ± 3,9 anos), participantes de um programa estruturado de atividade física. Os testes de Tempo de Reação Simples e Tempo de Reação de Escolha foram avaliados por meio de um software e para avaliação cognitiva utilizou-se o Mini-Exame do Estado Mental. Os dados foram analisados no Pacote Estatístico SPSS, versão 16.0, com nível de significância de pThe objective of this study was to investigate the correlation between reaction time and cognitive state of elderly women that are engaged in physical activities. We evaluated 77 elderly women (68.6 ± 3.9 years) that were participating in a structured program of physical activity. The Simple Reaction Time and Choice Reaction Time tests were evaluated by software tool and to the cognitive estimation; we used the Mini-Mental State Examination. The results were analyzed with the SPSS package, version 16.0, with a significance level of p <0.05 and before the non-normality of the data, Spearman correlation was chosen. The results observed in the tests represented a satisfactory score on the Mini-Mental State Examination, while for the reaction time the results were unsatisfactory. The correlation between the simple reaction time and cognitive state were considered significant and weak, it was hoped that with good results in cognitive state and by participating in physical activity, the women could show a shorter reaction time. Based on the information observed and considering the evidence that physical exercise helps in the efficiency of information processing by the central nervous system, it suggests, besides the practice of regular physical activity, motor and cognitive interventions that stimulate the plasticity of nervous system central should be promoted, with the purpose of contributing to the improved functionality of the elderly population