This study examined the effects of long-term creatine supplementation combined with resistance training (RT) on the one-repetition maximum (1RM) strength, motor functional performance (e.g., 30-s chair stand, arm curl, and getting up from lying on the floor tests) and body composition (e.g., fat-free mass, muscle mass, and % body fat using DEXA scans) in older women. Eighteen healthy women (64.9 ± 5.0 years) were randomly assigned in a double-blind fashion to either a creatine (CR, N = 9) or placebo (PL, N = 9) group. Both groups underwent a 12-week RT program (3 days week(-1)), consuming an equivalent amount of either creatine (5.0 g day(-1)) or placebo (maltodextrin). After 12 week, the CR group experienced a greater (P < 0.05) increase (Δ%) in training volume (+164.2), and 1RM bench press (+5.1), knee extension (+3.9) and biceps curl (+8.8) performance than the PL group. Furthermore, CR group gained significantly more fat-free mass (+3.2) and muscle mass (+2.8) and were more efficient in performing submaximal-strength functional tests than the PL group. No changes (P > 0.05) in body mass or % body fat were observed from pre- to post-test in either group. These results indicate that long-term creatine supplementation combined with RT improves the ability to perform submaximal-strength functional tasks and promotes a greater increase in maximal strength, fat-free mass and muscle mass in older women.

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RESUMO ABSTRACT Introduction: There is a variety of questionnaires to measure the level of physical activity. The International Physical Activity Questionnaire (IPAQ) has been widely used; however, this has not been validated in electronic format yet. Objective: To identify the correlation between the IPAQ long version in print and electronic versions. Methods: Study participants were 218 students at a private university, 109 of each gender (age ≤ 25 and ≥ 26). In the first stage, the participants were given prior information about filling out the form IPAQ-L (printed version); after that they completed the electronic version (WebIpaq). Results: No significant difference was found on comparing the print and electronic versions of the IPAQ-L. The same occurred in relation to the Practice of Habitual Physical Activity (PHAF) for the ratios by chi-square (X²). Excellent reproducibility was verified by the intraclass correlation coefficient (ICC), reaching values higher than in the combined analysis. In the weighted Kappa index agreement was substantial, ranging from 0.62 (95% CI: 0.41 to 0.77, males) to 0.67 (95% CI: 0.53 to 0.81, age ≤ 25 years

RESUMOIntrodução: A percepção subjetiva de esforço da sessão (PSE da sessão) é um método de fácil aplicação e de muita utilidade no contexto esportivo, sendo sugerido um período de 30 min após a sessão de treinamento para sua avaliação; no entanto, não existem dados empíricos que suportem essa sugestão. Objetivo: Verificar a correlação e a concordância entre a percepção subjetiva de esforço (PSE) média reportada durante sessões de treinamento com valores de PSE reportados 5, 15 e 30 min após o término das sessões de treinamento, em atletas de basquetebol de ambos os gêneros. Métodos: Participaram desse estudo 11 atletas do sexo feminino e nove atletas do sexo masculino. A PSE foi avaliada através da escala de PSE CR-10 a cada 20 min durante a sessão de uma hora de treinamento (PSE média da sessão) e 5, 15 ou 30 min após o término. Dessa forma, a PSE média de cada sessão de treinamento foi comparada com os valores de PSE reportados 5, 15 e 30 min após as sessões. Resultados: Não houve diferença significante da PSE média entre as três sessões. As maiores correlações foram observadas entre PSE média das sessões 2 e 3 com a PSE reportada 15 e 30 min, após para homens (r = 0,92 -0,91) e mulheres (r = 0,75 -0,82). Os maiores valores de concordância foram verificados entre a PSE média das sessões 1 e 2 e as reportadas 15 min e 30 min após para ambos gêneros. Conclusão: Com base nos resultados, sugerimos que se evite reportar a PSE 5 min após o término da sessão. Além disso, recomendamos reportar a PSE no mínimo 15 min e, sobretudo, 30 min após o término da sessão.Palavras-chave: esportes, esforço físico, frequência cardíaca. (r = 0.92 -0.91) and women (r = 0.75 -0.82 ABSTRACT Introduction: The session rating perceived exertion (session-RPE) is an easily applied and very useful method in the sports context, a 30 minutes period after training session having been recommended for assessment