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CC BY-NC-ND 4.0 · Sleep Sci 2023; 16(04): e454-e461
DOI: 10.1055/s-0043-1776869
Original Article

Effects of Acute Sleep Deprivation on the Sequential Rate of Torque Development throughout the Force-Time Curve

André Dias Gonçalves 
1   Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal
,
Pedro Pezarat-Correia
1   Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal
,
Carolina Vila-Chã
2   CIDESD, Escola Superior de Educação, Comunicação e Desporto, Instituto Politécnico da Guarda, Guarda Portugal
,
Gonçalo Vilhena Mendonça
1   Neuromuscular Research Lab, CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal
› Author Affiliations Funding The present work was partly supported by Fundação para a Ciência e a Tecnologia, I. P. (FCT, I.P.), Lisbon, Portugal, under grant UIDB/00447/2020 to Centro Interdisciplinar de Estudo da Performance Humana (CIPER; unit 447).
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Abstract

Objective The impact of sleep deprivation on the physiological determinants of explosive torque production remains poorly understood. We aimed at determining the acute effects of 24 hours of sleep deprivation on the sequential rate of torque development (RTD) obtained during plantar flexion through maximum voluntary isometric contraction (MVIC).

Materials and Methods The study included 14 healthy-young adults (8 men and 6 women). The participants visited the laboratory on 2 different occasions: without and with 24 hours of sleep deprivation. In each session, the subjects were tested for RTD of the plantar flexors with concomitant recordings of the electromyographic (EMG) amplitude of the soleus over the following time intervals: 0 to 30, 30 to 50, 50 to 100, and 100 to 150 ms.

Results Sleep deprivation did not affect peak RTD (without sleep deprivation: 283.3 ± 111.6 N.m.s−1 versus with sleep deprivation: 294.9 ± 99.2 N.m.s−1; p > 0.05) of plantar flexion. The sequential values of RTD, as well as the normalized amplitude of the soleus EMG, remained similar between both conditions (p > 0.05).

Discussion In conclusion, we found that 24 hours of sleep deprivation do not affect muscle activation, nor explosive torque production throughout the torque-time curve. Thus, exercise performance and daily functionality in tasks involving rapid torque development might remain well preserved after 24 hours of acute sleep deprivation.

Keywords

fatigue - sleep deprivation - torque-time curve - electromyography


Publication History

Received: 12 August 2022

Accepted: 27 March 2023

Article published online:
22 November 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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