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PurposeThe aim of this study was to investigate the effect of self-paced active recovery (AR) and passive recovery (PR) on blood lactate removal following a 200 m freestyle swimming trial.Patients and methodsFourteen young swimmers (with a training frequency of 6–8 sessions per week) performed two maximal 200 m freestyle trials followed by 15 minutes of different recovery methods, on separate days. Recovery was performed with 15 minutes of passive rest or 5 minutes of passive rest and 10 minutes of self-paced AR. Performance variables (trial velocity and time), recovery variables (distance covered and AR velocity), and physiological variables (blood lactate production, blood lactate removal, and removal velocity) were assessed and compared.ResultsThere was no difference between trial times in both conditions (PR: 125.86±7.92 s; AR: 125.71±8.21 s; p=0.752). AR velocity was 69.10±3.02% of 200 m freestyle trial velocity in AR. Blood lactate production was not different between conditions (PR: 8.82±2.47 mmol L−1; AR: 7.85±2.05 mmol L−1; p=0.069). However, blood lactate removal was higher in AR (PR: 1.76±1.70 mmol L−1; AR: 4.30±1.74 mmol L−1; p<0.001). The velocity of blood lactate removal was significantly higher in AR (PR: 0.18±0.17 mmol L−1 min−1; AR: 0.43±0.17 mmol L−1 min−1; p<0.001).ConclusionSelf-paced AR shows a higher velocity of blood lactate removal than PR. These data suggest that athletes may be able to choose the best recovery intensity themselves.

Background: Patients undergone hemodialysis (HD) suffer with energy-protein malnutrition, uremic myopathy and protein catabolism reducing their functional capacity, tolerance to exercise and aspects related to quality of life. Objective: The aim of this study was to evaluate the effects of the two protocols of inspiratory muscle training (IMT) on muscle strength, pulmonary function and related-health quality of life on male HD patients. Methods: Maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), peak expiratory flow (PEF), forced expiratory volume in first second (FEV 1 ), forced vital capacity (FVC) and the FEV 1 /FVC ratio and quality of life were evaluated pre and post six months of IMT in HD patients. IMT was performed by one group using a specific training (Power breathe) device (T-IMT, n=19) and by the other with incentive spirometry (I-IMT, n= 15). Results: Following the inspiratory training, muscle strength improved in both groups. The group that used incentive spirometry had increments in MIP larger (39.8%, p<0.001) than the group that trained with the specific training device (28.3%, p=0.001). The KDQOL-SF dimensions showed significant difference in the T-IMT group in cognitive function (p=0.03), sexual function (p=0.009) and social function dimensions (p=0.04) and in the I-IMT group in the physical function dimension (p=0.03). Conclusion: It was proved that IMT improved muscle strength and I-IMT promoted increments significantly larger in MIP. Aspects of health-related quality of life of HD male patients improved significantly with T-IMT (sexual, social and cognitive functions), while I-IMT ameliorated only physical function.

Background Aging is an irreversible process by which all living humans will pass, and the percentage of older population growth significantly in the last decades. There are an increasing evidence showing that independently older people, with autonomy and physical capacity, has better quality of life in comparison with others without self-sufficiency. Objective: Verify the changes on Quality-of-Life (QoL), body composition and physical performance (PF) of elderly women submitted to resistance training (RT). Methods: 16 elderly women participated in the study, that consisted in 12 weeks of Resistance training. The QoL with SF-36, the blood pressure (BP), hand-grip strength, anthropometry and physical performance to senior, was measured before and after of resistance training. Results: The main findings of this study were that the RT for 12 weeks are able to changes the self-perception of QoL of elderly women, simultaneously with decrease in percent of fat and increase in strength and PF. In addition, a maintenance of BP levels, flexibility and self-perception of pain and global health (QoL domains), were observed after this period. Conclusion: The study suggest that the 12 weeks of RT, twice a week, is able to ameliorate several physical fitness components and QoL domains, in community-dwelling elderly women.

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