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Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill

Recently, treadmills equipped with a lower-body positive-pressure (LBPP) device have been developed to provide precise body weight support (BWS) during walking. Since lower limbs are covered in a waist-high chamber of an LBPP treadmill, a conventional motion analysis using an optical method is impos...

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Autores principales: Kataoka, Yoshiaki, Takeda, Ryo, Tadano, Shigeru, Ishida, Tomoya, Saito, Yuki, Osuka, Satoshi, Samukawa, Mina, Tohyama, Harukazu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8068341/
https://www.ncbi.nlm.nih.gov/pubmed/33917951
http://dx.doi.org/10.3390/s21082619
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author Kataoka, Yoshiaki
Takeda, Ryo
Tadano, Shigeru
Ishida, Tomoya
Saito, Yuki
Osuka, Satoshi
Samukawa, Mina
Tohyama, Harukazu
author_facet Kataoka, Yoshiaki
Takeda, Ryo
Tadano, Shigeru
Ishida, Tomoya
Saito, Yuki
Osuka, Satoshi
Samukawa, Mina
Tohyama, Harukazu
author_sort Kataoka, Yoshiaki
collection PubMed
description Recently, treadmills equipped with a lower-body positive-pressure (LBPP) device have been developed to provide precise body weight support (BWS) during walking. Since lower limbs are covered in a waist-high chamber of an LBPP treadmill, a conventional motion analysis using an optical method is impossible to evaluate gait kinematics on LBPP. We have developed a wearable-sensor-based three-dimensional motion analysis system, H-Gait. The purpose of the present study was to investigate the effects of BWS by a LBPP treadmill on gait kinematics using an H-Gait system. Twenty-five healthy subjects walked at 2.5 km/h on a LBPP treadmill under the following three conditions: (1) 0%BWS, (2) 25%BWS and (3) 50%BWS conditions. Acceleration and angular velocity from seven wearable sensors were used to analyze lower limb kinematics during walking. BWS significantly decreased peak angles of hip adduction, knee adduction and ankle dorsiflexion. In particular, the peak knee adduction angle at the 50%BWS significantly decreased compared to at the 25%BWS (p = 0.012) or 0%BWS (p < 0.001). The present study showed that H-Gait system can detect the changes in gait kinematics in response to BWS by a LBPP treadmill and provided a useful clinical application of the H-Gait system to walking exercises.
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spelling pubmed-80683412021-04-25 Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill Kataoka, Yoshiaki Takeda, Ryo Tadano, Shigeru Ishida, Tomoya Saito, Yuki Osuka, Satoshi Samukawa, Mina Tohyama, Harukazu Sensors (Basel) Communication Recently, treadmills equipped with a lower-body positive-pressure (LBPP) device have been developed to provide precise body weight support (BWS) during walking. Since lower limbs are covered in a waist-high chamber of an LBPP treadmill, a conventional motion analysis using an optical method is impossible to evaluate gait kinematics on LBPP. We have developed a wearable-sensor-based three-dimensional motion analysis system, H-Gait. The purpose of the present study was to investigate the effects of BWS by a LBPP treadmill on gait kinematics using an H-Gait system. Twenty-five healthy subjects walked at 2.5 km/h on a LBPP treadmill under the following three conditions: (1) 0%BWS, (2) 25%BWS and (3) 50%BWS conditions. Acceleration and angular velocity from seven wearable sensors were used to analyze lower limb kinematics during walking. BWS significantly decreased peak angles of hip adduction, knee adduction and ankle dorsiflexion. In particular, the peak knee adduction angle at the 50%BWS significantly decreased compared to at the 25%BWS (p = 0.012) or 0%BWS (p < 0.001). The present study showed that H-Gait system can detect the changes in gait kinematics in response to BWS by a LBPP treadmill and provided a useful clinical application of the H-Gait system to walking exercises. MDPI 2021-04-08 /pmc/articles/PMC8068341/ /pubmed/33917951 http://dx.doi.org/10.3390/s21082619 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Kataoka, Yoshiaki
Takeda, Ryo
Tadano, Shigeru
Ishida, Tomoya
Saito, Yuki
Osuka, Satoshi
Samukawa, Mina
Tohyama, Harukazu
Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title_full Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title_fullStr Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title_full_unstemmed Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title_short Analysis of 3-D Kinematics Using H-Gait System during Walking on a Lower Body Positive Pressure Treadmill
title_sort analysis of 3-d kinematics using h-gait system during walking on a lower body positive pressure treadmill
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8068341/
https://www.ncbi.nlm.nih.gov/pubmed/33917951
http://dx.doi.org/10.3390/s21082619
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