Efeito de diferentes intervalos recuperativos sobre as respostas musculares, sanguíneas e hemodinâmicas
2018
Weight training is a strategy of controlling the natural processes which occur with aging and the interval period between sets can determine the total workload of a training session. The objective of this study was to analyze the muscle performance, level of blood lactate and hemodynamic variables at different intervals of recovery after exercise on an isokinetic dynamometer. The study was conducted with eleven middle-aged individuals (57.00 ± 7.2 years) who practiced weight training for more than six months. The volunteers performed two visits to the Laboratory of Physical Evaluation of the University, where performed three sets of 10 repetitions with 60o/second (power) in the movement of knee extension and flexion on a Biodex isokinetic dynamometer brand 4.0. In the first visit, 60 seconds of rest between sets were made and, in the second visit, 90 seconds between sets. The variables analyzed were peak torque (Nm), total work (J), fatigue index (%), systolic and diastolic blood pressure (mmHg) and blood lactate concentration (mmol / L). To compare the data, we used analysis of variance (p <0.05). After the analysis, it was possible to verify that there were no significant differences between recovery interval of 60 and 90 seconds in relation to muscle strength, fatigue index and blood lactate concentration. Therefore, it is concluded that for individuals who are in the process of aging, apparently 60 or 90 seconds of rest between sets cause the same answers. This discovery may be important for physical education professional in exercise prescription.
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