Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain

A compensatory stepping strategy following repeated perturbations may compromise dynamic balance and postural stability. However, there is a lack of study on preferred limb reaction, swing, and step time adjustments. The purpose of this study was to investigate limb reaction, swing, and recovery ste...

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Autores principales:	Paul S. Sung, Emily Hosmer
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reaction time recovery step time perturbations low back pain compensation balance Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/d4b161f6989544d28a8132497459b060
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spelling	oai:doaj.org-article:d4b161f6989544d28a8132497459b0602021-11-25T19:06:51ZPreferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain10.3390/sym131121152073-8994https://doaj.org/article/d4b161f6989544d28a8132497459b0602021-11-01T00:00:00Zhttps://www.mdpi.com/2073-8994/13/11/2115https://doaj.org/toc/2073-8994A compensatory stepping strategy following repeated perturbations may compromise dynamic balance and postural stability. However, there is a lack of study on preferred limb reaction, swing, and step time adjustments. The purpose of this study was to investigate limb reaction, swing, and recovery step times following repeated trip perturbations in individuals with and without non-specific chronic low back pain (LBP). There were 30 subjects with LBP and 50 control subjects who participated in the study. The limb reaction, swing, and recovery step times (s) were measured following treadmill-induced random repeated perturbations (0.12 m/s velocity for 62.5 cm displacement), which caused subjects to move forward for 4.90 s. Both groups demonstrated a significant interaction of repetitions and times (F = 4.39, <i>p</i> = 0.03). Specifically, the recovery step time was significantly shorter in the LBP group during the first trip (t = 2.23, <i>p</i> = 0.03). There was a significant interaction on repetitions and times (F = 6.03, <i>p</i> = 0.02) in the LBP group, and the times were significantly different (F = 45.04, <i>p</i> = 0.001). The initial limb reaction time of the LBP group was significantly correlated with three repeated swing times to avoid falls. The novelty of the first trip tends to enhance a protective strategy implemented by the LBP group. Although limb preference did not demonstrate a significant difference between groups, the LBP group demonstrated shorter recovery step times on their preferred limb initially in order to implement an adaptive strategy to avoid fall injuries following repeated perturbations.Paul S. SungEmily HosmerMDPI AGarticlereaction timerecovery step timeperturbationslow back paincompensationbalanceMathematicsQA1-939ENSymmetry, Vol 13, Iss 2115, p 2115 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reaction time recovery step time perturbations low back pain compensation balance Mathematics QA1-939
spellingShingle	reaction time recovery step time perturbations low back pain compensation balance Mathematics QA1-939 Paul S. Sung Emily Hosmer Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
description	A compensatory stepping strategy following repeated perturbations may compromise dynamic balance and postural stability. However, there is a lack of study on preferred limb reaction, swing, and step time adjustments. The purpose of this study was to investigate limb reaction, swing, and recovery step times following repeated trip perturbations in individuals with and without non-specific chronic low back pain (LBP). There were 30 subjects with LBP and 50 control subjects who participated in the study. The limb reaction, swing, and recovery step times (s) were measured following treadmill-induced random repeated perturbations (0.12 m/s velocity for 62.5 cm displacement), which caused subjects to move forward for 4.90 s. Both groups demonstrated a significant interaction of repetitions and times (F = 4.39, <i>p</i> = 0.03). Specifically, the recovery step time was significantly shorter in the LBP group during the first trip (t = 2.23, <i>p</i> = 0.03). There was a significant interaction on repetitions and times (F = 6.03, <i>p</i> = 0.02) in the LBP group, and the times were significantly different (F = 45.04, <i>p</i> = 0.001). The initial limb reaction time of the LBP group was significantly correlated with three repeated swing times to avoid falls. The novelty of the first trip tends to enhance a protective strategy implemented by the LBP group. Although limb preference did not demonstrate a significant difference between groups, the LBP group demonstrated shorter recovery step times on their preferred limb initially in order to implement an adaptive strategy to avoid fall injuries following repeated perturbations.
format	article
author	Paul S. Sung Emily Hosmer
author_facet	Paul S. Sung Emily Hosmer
author_sort	Paul S. Sung
title	Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
title_short	Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
title_full	Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
title_fullStr	Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
title_full_unstemmed	Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain
title_sort	preferred limb reaction, swing and recovery step times between subjects with and without chronic low back pain
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d4b161f6989544d28a8132497459b060
work_keys_str_mv	AT paulssung preferredlimbreactionswingandrecoverysteptimesbetweensubjectswithandwithoutchroniclowbackpain AT emilyhosmer preferredlimbreactionswingandrecoverysteptimesbetweensubjectswithandwithoutchroniclowbackpain
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Preferred Limb Reaction, Swing and Recovery Step Times between Subjects with and without Chronic Low Back Pain

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