Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.

<h4>Objective</h4>The purpose of this study is to investigate the physical changes of the lower leg muscles in the compartment by observing the changes in the shear wave velocity of the gastrocnemius, soleus and tibialis anterior muscles with time in the sitting position for 2 hours and...

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Autores principales:	Kumiko Okino, Mitsuhiro Aoki, Masahiro Yamane, Chikashi Kohmura
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5b71f31ab76c4efead8c4571282c10e7
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spelling	oai:doaj.org-article:5b71f31ab76c4efead8c4571282c10e72021-11-25T05:54:16ZEffect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.1932-620310.1371/journal.pone.0251532https://doaj.org/article/5b71f31ab76c4efead8c4571282c10e72021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251532https://doaj.org/toc/1932-6203<h4>Objective</h4>The purpose of this study is to investigate the physical changes of the lower leg muscles in the compartment by observing the changes in the shear wave velocity of the gastrocnemius, soleus and tibialis anterior muscles with time in the sitting position for 2 hours and after elevation of the lower leg.<h4>Materials and methods</h4>The subjects were 24 healthy adult males (average age 26.6 years). Shear wave velocity was measured by Aplio 500 in immobilized leg immediately after the start of sitting, 60 minutes and 120 minutes after the start of sitting. After 120 minutes the subjects raised the lower leg for 3 minutes, then measured again.<h4>Results</h4>In the lateral and medial gastrocnemius, there was a significant increase in the velocity at 60 (1.58 ± 0.06, 1.70 ± 0.09 m/s) and 120 minutes (1.70 ± 0.10, 1.83 ± 0.11 m/s) after the start of the test (1.52 ± 0.06, 1.66 ± 0.10 m/s), respectively (p<0.01). In the soleus and the tibialis anterior, there was a significant increase in the velocity at 120 minutes (1.89 ± 0.17, 2.30 ± 0.24 m/s) compared to after the start (1.60 ± 0.15, 2.15 ± 0.26 m/s), respectively (p<0.01). In all muscles, there was a significant decrease in the velocity after the raising compared to that of 120 minutes (p<0.01).<h4>Conclusions</h4>It has been reported that the change of shear wave velocity with time is proportional to the intramuscular pressure in the leg compartment, and it is assumed that the increase of shear wave velocity in the 2-hour seated leg is due to fluid retention in extra-cellular space of the compartment.Kumiko OkinoMitsuhiro AokiMasahiro YamaneChikashi KohmuraPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251532 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kumiko Okino Mitsuhiro Aoki Masahiro Yamane Chikashi Kohmura Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
description	<h4>Objective</h4>The purpose of this study is to investigate the physical changes of the lower leg muscles in the compartment by observing the changes in the shear wave velocity of the gastrocnemius, soleus and tibialis anterior muscles with time in the sitting position for 2 hours and after elevation of the lower leg.<h4>Materials and methods</h4>The subjects were 24 healthy adult males (average age 26.6 years). Shear wave velocity was measured by Aplio 500 in immobilized leg immediately after the start of sitting, 60 minutes and 120 minutes after the start of sitting. After 120 minutes the subjects raised the lower leg for 3 minutes, then measured again.<h4>Results</h4>In the lateral and medial gastrocnemius, there was a significant increase in the velocity at 60 (1.58 ± 0.06, 1.70 ± 0.09 m/s) and 120 minutes (1.70 ± 0.10, 1.83 ± 0.11 m/s) after the start of the test (1.52 ± 0.06, 1.66 ± 0.10 m/s), respectively (p<0.01). In the soleus and the tibialis anterior, there was a significant increase in the velocity at 120 minutes (1.89 ± 0.17, 2.30 ± 0.24 m/s) compared to after the start (1.60 ± 0.15, 2.15 ± 0.26 m/s), respectively (p<0.01). In all muscles, there was a significant decrease in the velocity after the raising compared to that of 120 minutes (p<0.01).<h4>Conclusions</h4>It has been reported that the change of shear wave velocity with time is proportional to the intramuscular pressure in the leg compartment, and it is assumed that the increase of shear wave velocity in the 2-hour seated leg is due to fluid retention in extra-cellular space of the compartment.
format	article
author	Kumiko Okino Mitsuhiro Aoki Masahiro Yamane Chikashi Kohmura
author_facet	Kumiko Okino Mitsuhiro Aoki Masahiro Yamane Chikashi Kohmura
author_sort	Kumiko Okino
title	Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
title_short	Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
title_full	Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
title_fullStr	Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
title_full_unstemmed	Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.
title_sort	effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: a proof-of-concept study.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/5b71f31ab76c4efead8c4571282c10e7
work_keys_str_mv	AT kumikookino effectofprolongedsittingimmobilityonshearwavevelocityofthelowerlegmusclesinhealthyadultsaproofofconceptstudy AT mitsuhiroaoki effectofprolongedsittingimmobilityonshearwavevelocityofthelowerlegmusclesinhealthyadultsaproofofconceptstudy AT masahiroyamane effectofprolongedsittingimmobilityonshearwavevelocityofthelowerlegmusclesinhealthyadultsaproofofconceptstudy AT chikashikohmura effectofprolongedsittingimmobilityonshearwavevelocityofthelowerlegmusclesinhealthyadultsaproofofconceptstudy
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Effect of prolonged sitting immobility on shear wave velocity of the lower leg muscles in healthy adults: A proof-of-concept study.

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