Neuromuscular Impact of Acute Hypertrophic Resistance Loading with And Without Blood-Flow Restriction. 2022

Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.

Exploring acute neuromuscular fatigue induced by different modalities of resistance exercise would help understand the adaptation subsequent to specific training programs. Therefore, we investigated the acute impact of high-intensity and low-intensity blood flow-restricted resistance exercise on the development of explosive torque throughout the torque-time curve. Seventeen healthy, young participants were included in a randomized, counterbalanced within-subjects design study, in which participants underwent two experimental conditions, separated by a 1-wk period. Low-intensity blood-flow restricted exercise and high-intensity resistance exercise were performed using dynamic elbow flexion at 20 and 75% of 1 repetition maximum, respectively. Maximal voluntary contraction (MVC) and the sequential rate of torque development (absolute and relative) were measured before and after exercise. Both protocols elicited a similar decrement in MVC (~ 25%) and in the peak rate of torque development after exercise (~ 45%). The absolute rate of torque development (0-50 and 50-100 ms) was also reduced (p<0.05) similarly between conditions. After normalizing torque values to MVC, this was only sustained for the rate of torque development 0-50ms (p<0.05). We found that both exercise protocols induced similar acute attenuation of the absolute rate of torque development up to the first 100 ms of MVC. We also demonstrated that the reduction in the rate of torque development between 50-100ms (in both protocols) was largely explained by an acute deficit in muscle strength post-exercise. Conversely, the impact of each protocol on the first 50ms of muscle torque did not depend on lower levels of muscle strength after exercise.

UI MeSH Term Description Entries

Related Publications

Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
August 2019, Heliyon,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
July 2023, European journal of haematology,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
July 2020, Journal of sport rehabilitation,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
February 2021, BMC sports science, medicine & rehabilitation,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
November 2015, Biology of sport,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
August 2019, Journal of sports sciences,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
October 2020, Journal of strength and conditioning research,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
April 2014, European journal of applied physiology,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
July 2022, Journal of neurophysiology,
Goncalo Vilhena de Mendonca, and Joana Margarida Correia, and Miguel Gomes, and André Dias Gonçalves, and Carolina Vila-Chã, and Pedro Pezarat-Correia
January 2023, International journal of exercise science,
Copied contents to your clipboard!