We evaluated the effectiveness of cold water immersion on recovery of performance (i. e., the ability of repetitively performing a physical test) in rugby players acutely and 12 h later. 8 male rugby union players (23±4.7 years; 176.9±4.5 cm; 87.5±8.6 kg) performed a rugby-specific exercise protocol (40 min) followed by recovery strategies: cold water immersion (8.9±0.6°C; 9 min with 1 min out of water, repeated twice) or control (players remained seated for 20 min) in a random order. The players underwent performance tests (countermovement and 30 s continuous jumps and agility T) at 4 time points: at baseline, immediately after rugby-specific exercise, post-recovery strategies and 12 h later. The performance of the agility and countermovement jump test were not different between cold water immersion and control immediately post rugby-specific exercises and 12 h thereafter. However, the 30 s continuous jump test performance decreased immediately but increased 12 h later after cold water immersion compared with control. Perception of recovery was better in the cold water immersion group compared with controls post 12 h exercise. Cold water immersion improves 30 s continuous jump performance, total quality recovery and seems to be an easy and practical tool for coaches and players, especially during congested periods of the season when fast recovery (~12 h) for the following activity is essential.
Ischemic preconditioning has been used as a training and/or pre-competition strategy; however its use for post-exercise recovery is still unclear. This study aimed to evaluate the impact of ischemic preconditioning on performance and recovery ratings following a simulated match in sub-elite rugby players. Following baseline measures, male players (n=8) performed a 40 min, rugby-specific exercise protocol followed by an intervention: 21 min of ischemic preconditioning (3×5 min occlusion at 220 mmHg with 2 min reperfusion at 0 mmHg) or passive rest (control) on 2 separate days. An agility T-test, a single vertical countermovement jump and 30 s of continuous vertical jumps were performed at baseline (–24 h), immediately after exercise, and immediately after the intervention. The rugby-specific exercise protocol induced similar mean heart rates (158.3±18.0 vs. 158.7±16.0 bpm) and perceived exertion levels (8.2±0.9 vs. 8.0±1.0) for both trials with all recovery performance measures and rating of recovery (13.9±1.4 vs. 13.6±1.6) similar between ischemic preconditioning and control trials (best p=0.385). We conclude that the use of ischemic preconditioning does not improve recovery acutely (~1 h) including specific variables related to rugby performance in amateur rugby union players.
The aim of this study was to identify the amount of time spent in sedentary behavior that may be critically related to functional disability in older adults. A cross-sectional study was conducted with a random sample of 624 older adults (65.1% women) aged 60 to 96 years. Perceived limitations in instrumental activities of daily living were used as indication of functional disability. Time spent in sedentary behavior was assessed using the International Physical Activity Questionnaire (IPAQ). The prevalence of functional disability was 29.4%. The mean total time spent in sedentary behavior was 576.51 ± 5.14 min/day. Receiver Operating Characteristic (ROC) curves were used to identify cut-points for time spent in sedentary behavior that could discriminate functional disability in older adults. The results suggested that spending > 600.00 min/day and > 614.00 min/day in sedentary behavior, for men and women, respectively, was a discriminator for functional disability in the current study. These cut-points can be used to identify older adults who are most vulnerable to functional disability in future studies.
O objetivo do presente estudo foi analisar as ações de educação permanente realizadas na área dasaúde pública no Brasil. Tratou-se de uma pesquisa exploratório-descritiva, do tipo revisãointegrativa, realizada em outubro de 2013, sem recorte temporal e orientada a partir da seguintequestão: quais ações de educação permanente têm sido realizadas na área da saúde públicabrasileira? A população do estudo foi constituída pela produção científica, relacionada ao temaeducação permanente em saúde pública, consultada nas bases de dados SciELO, LILACS e PortalPeriódico CAPES. A amostra foi composta por 16 artigos. Se por um lado os artigos apontarammudanças no contexto da saúde e educação profissional, por outro foi encontrado que ainda hádesafios a serem vencidos. Cabe aos agentes formadores estabelecerem um processo educativoque possibilite aos trabalhadores de saúde pensar por si mesmos, enfrentar as contradições dasociedade e utilizar novas tecnologias para compreendê-las e transformá-las.
El presente trabajo tuvo como objetivo presentar el estado del arte de estudios que utilizaran la metodología investigación-acción en la educación física escolar. La recopilación de datos buscó investigaciones publicadas en las bases de datos: Biblioteca Virtual en salud, LILACS, SciELO y portal de periódicos CAPES, a partir de los descriptores: investigación-acción, educación física y educación física escolar. Con base en el Análisis de Contenidos de Moraes (1999), 16 artículos fueron seleccionados y distribuidos en tres categorías: 1) Contenidos de las lecciones; 2) Planificación y práctica pedagógica; y 3) Formación profesional. Los resultados mostraron que el uso de la investigación-acción puede ser considerada como una dimensión educativa significativa para el desarrollo de la educación física escolar.
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