Rating of Perceived Exertion and Physiological Responses in Water-Based Exercise

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Authors
Stephanie Santana Pinto, Cristine Lima Alberton, Paula Zaffari, Eduardo Lusa Cadore, Ana Carolina Kanitz, Giane Veiga Liedtke, Marcus Peikriszwili Tartaruga, Luiz Fernando Martins Kruel
Abstract

The aim of the present study was to relate the overall rating of perceived exertion (RPE-overall) with cardiorespiratory and neuromuscular variables during stationary running with the elbow flexion/extension performed with water-floating equipment. The sample consisted of eleven women that performed the water-based exercise at submaximal cadences. The heart rate, oxygen uptake, ventilation, and electromyographic signal (EMG) from biceps brachii (%EMG BB), triceps brachii (%EMG TB), biceps femoris (%EMG BF) and rectus femoris (%EMG RF) muscles were measured during the exercise, and the overall RPE was measured immediately following its completion. The Pearson product-moment linear correlation was used to investigate associations between the variables analyzed in the present study. Significant relationships were observed between the RPE-overall and all the cardiorespiratory variables, with the r values ranging from 0.60 to 0.70 (p<0.05). In addition, the RPE-overall showed a significant (p<0.05) relationship with %EMG BB (r=0.55) and %EMG BF (r=0.50). These results suggest an association between the RPE-overall with all cardiorespiratory and two neuromuscular variables during the execution of a water-based aerobic exercise using water-floating equipment.
DOI
DOI: 10.1515/hukin-2015-0112
Key words
minute ventilation, oxygen uptake, heart rate, electromyographic signal, aquatic exercise, floating equipment

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