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  • Title: Does Aerobic Exercise Impair Neuromuscular Function During Water-Based Resistance Exercises?
    Author: Pinto SS, Alberton CL, Cadore EL, Kanitz AC, Delevatti RS, Pantoja PD, Peyré-Tartaruga LA, Reichert T, Bregagnol LP, Lisboa SDC, Kruel LFM.
    Journal: Res Q Exerc Sport; 2018 Dec; 89(4):465-473. PubMed ID: 30257138.
    Abstract:
    PURPOSE: The purpose of this study was to investigate the acute effects of water-based aerobic exercises on the performance of water-based resistance exercises by assessing kinematic parameters during protocols and neuromuscular responses after them. METHOD: Ten women performed 2 water-based protocols (i.e., resistance and concurrent water-based exercises) on separate days. We evaluated isometric force and electromyographic signal (sEMG) before and after protocols and analyzed kinematic parameters during a water-based resistance exercise. RESULTS: There was no significant difference between knee extension force production and sEMG from the vastus lateralis during the maximal voluntary contraction performed before and after the protocols. However, sEMG from the rectus femoris presented a significant difference between pretest and posttest measurements in both water-based protocols with greater values in the measurement after the end of the protocol (p = .046). The peak angular velocity of knee extension and mean angular velocity of knee extension and flexion showed similar values among the sets, with no difference between protocols. The peak angular velocity of knee flexion presented greater values in the water-based resistance exercises compared with the water-based concurrent protocol in the last set (p < .001). CONCLUSION: The main impairment induced by the water-based concurrent exercises was the lower peak angular velocity in the knee flexors compared with water-based resistance exercises alone.
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