Reliability of the Soleus H-Reflex in Different Sitting Postures

The Soleus (SOL) Hoffmann reflex (H-reflex) is commonly recorded in sitting position. However, the reliability of recording is unknown. We assessed the reliability of SOL H-reflex amplitude measurements across multiple traces and sessions during erect, slumped, and slouched sitting postures using th...

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Main Authors: Hamad S. Al Amer, Mohamed A. Sabbahi, Sharon L. Olson
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Medical Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3271/8/4/48
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author Hamad S. Al Amer
Mohamed A. Sabbahi
Sharon L. Olson
author_facet Hamad S. Al Amer
Mohamed A. Sabbahi
Sharon L. Olson
author_sort Hamad S. Al Amer
collection DOAJ
description The Soleus (SOL) Hoffmann reflex (H-reflex) is commonly recorded in sitting position. However, the reliability of recording is unknown. We assessed the reliability of SOL H-reflex amplitude measurements across multiple traces and sessions during erect, slumped, and slouched sitting postures using the generalizability theory. Five traces of the SOL H-reflex maximum amplitude (H<sub>max</sub>) were recorded from 10 healthy participants during erect, slumped, and slouched sitting postures in two sessions. A decision study analysis was then conducted to calculate the reliability coefficients of the H<sub>max</sub> for five traces and two sessions and to mathematically calculate the coefficients for seven and ten traces, and one and three sessions in the three sitting postures. For five traces and two sessions, the results showed reliability coefficients between 0.970 and 0.971, 0.980 and 0.979, and equal to 0.943 for erect, slumped, and slouched sitting, respectively. Averaging five traces of the H<sub>max</sub> in a single recording session was sufficient to obtain acceptable reliability in the three sitting postures (reliability range, 0.892–0.988). It was concluded that the SOL H<sub>max</sub> can be recorded during erect, slumped, and slouched sitting postures with adequate reliability.
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spelling doaj.art-a138b3149a6d46aeaf49fe97b0dfeee62023-11-20T22:18:11ZengMDPI AGMedical Sciences2076-32712020-11-01844810.3390/medsci8040048Reliability of the Soleus H-Reflex in Different Sitting PosturesHamad S. Al Amer0Mohamed A. Sabbahi1Sharon L. Olson2Department of Physical Therapy, Faculty of Applied Medical Sciences, University of Tabuk, Tabuk 71491, Saudi ArabiaSchool of Physical Therapy, Texas Woman’s University, 6700 Fannin Street, Houston, TX 77030, USASchool of Physical Therapy, Texas Woman’s University, 6700 Fannin Street, Houston, TX 77030, USAThe Soleus (SOL) Hoffmann reflex (H-reflex) is commonly recorded in sitting position. However, the reliability of recording is unknown. We assessed the reliability of SOL H-reflex amplitude measurements across multiple traces and sessions during erect, slumped, and slouched sitting postures using the generalizability theory. Five traces of the SOL H-reflex maximum amplitude (H<sub>max</sub>) were recorded from 10 healthy participants during erect, slumped, and slouched sitting postures in two sessions. A decision study analysis was then conducted to calculate the reliability coefficients of the H<sub>max</sub> for five traces and two sessions and to mathematically calculate the coefficients for seven and ten traces, and one and three sessions in the three sitting postures. For five traces and two sessions, the results showed reliability coefficients between 0.970 and 0.971, 0.980 and 0.979, and equal to 0.943 for erect, slumped, and slouched sitting, respectively. Averaging five traces of the H<sub>max</sub> in a single recording session was sufficient to obtain acceptable reliability in the three sitting postures (reliability range, 0.892–0.988). It was concluded that the SOL H<sub>max</sub> can be recorded during erect, slumped, and slouched sitting postures with adequate reliability.https://www.mdpi.com/2076-3271/8/4/48H-reflexsoleussittingelectromyographyreliability
spellingShingle Hamad S. Al Amer
Mohamed A. Sabbahi
Sharon L. Olson
Reliability of the Soleus H-Reflex in Different Sitting Postures
Medical Sciences
H-reflex
soleus
sitting
electromyography
reliability
title Reliability of the Soleus H-Reflex in Different Sitting Postures
title_full Reliability of the Soleus H-Reflex in Different Sitting Postures
title_fullStr Reliability of the Soleus H-Reflex in Different Sitting Postures
title_full_unstemmed Reliability of the Soleus H-Reflex in Different Sitting Postures
title_short Reliability of the Soleus H-Reflex in Different Sitting Postures
title_sort reliability of the soleus h reflex in different sitting postures
topic H-reflex
soleus
sitting
electromyography
reliability
url https://www.mdpi.com/2076-3271/8/4/48
work_keys_str_mv AT hamadsalamer reliabilityofthesoleushreflexindifferentsittingpostures
AT mohamedasabbahi reliabilityofthesoleushreflexindifferentsittingpostures
AT sharonlolson reliabilityofthesoleushreflexindifferentsittingpostures