Perceived exertion, postural control, and muscle recruitment in three different quadruped exercises performed by healthy women

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-08-19
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Mcode
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Language
en
Pages
8
1-8
Series
Frontiers in Physiology, Volume 13
Abstract
Although quadruped exercises (QE) have been a part of rehabilitation and sports programs, there is no clarity on how these exercises challenge the musculoskeletal system. Therefore, this cross-sectional study investigated the perceived exertion, postural demands, and muscle recruitment profiles imposed by three QE postures. Surface electromyographic (sEMG) signals were recorded from transverse abdominis, longissimus dorsi, multifidus, and iliocostalis lumborum from 30 sedentary healthy women, bilaterally. They performed the classic quadruped exercise (CQ), a variation with shoulder flexion (FQ), and the homolateral quadruped (HQ). Borg scores (BS) and the center of pressure (CoP) from the palmar statokinesiogram were also recorded. Surface EMG signals were normalized using the myoelectric activity recorded from two other postures while performing isometric voluntary contractions (IVC). Results were analyzed using one- (CoP) and three-way (sEMG data) ANOVA with Bonferroni post hoc tests (α = 0.05). The Borg scale was analyzed using the Friedman test. The CQ provided lower BS and CoP than HQ (p < 0.05), followed by a higher sEMG activity (∼51% of IVC) than FQ (∼47% of IVC; p = 0.53) and HQ (∼44% of IVC; p = 0.01). In turn, HQ provided greater BS (p > 0.05) than CQ and FQ. The results suggested that the HQ was the most challenging exercise regarding CoP and BS, although CQ presented a higher symmetrical sEMG activity. Since QE are often prescribed in exercise programs, specific knowledge of the characteristics of each QE makes prescribing safer and more efficient.
Description
| openaire: EC/H2020/810377/EU//ConnectToBrain Funding Information: This study was financed in part by the [Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES) #1] under Grant [Finance Code 001], [Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) #2] under Grant (CDS-APQ-01730-09-51900) and (CDS-APQ-00923-11-213588), and [Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) #3]. VS was funded by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (ConnectToBrain; grant agreement number 810377). Publisher Copyright: Copyright © 2022 Clemente, de Almeida, Vicente, Fonseca, Souza, Felício and Garcia.
Keywords
abdominal muscles, exercise movement techniques, low back pain, physical fitness, postural balance
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Citation
Clemente , P C , de Almeida , L L , Vicente , E J D , Fonseca , D S , Souza , V H , Felício , D C & Garcia , M A C 2022 , ' Perceived exertion, postural control, and muscle recruitment in three different quadruped exercises performed by healthy women ' , Frontiers in Physiology , vol. 13 , 948469 , pp. 1-8 . https://doi.org/10.3389/fphys.2022.948469