The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed

The purpose of this study was to determine the neuromuscular and metabolic changes among three selected preferred transition speeds (PTS) and two types of gait (walk and run). Twelve male subjects were enrolled to participate in this study. Vicon® motion capture system, Biopac® Electromyography and...

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Main Authors: Ying-Ki FUNG, Ming-Sheng CHAN, Yin-Shin LEE, Tzyy-Yuang SHIANG
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2017-03-01
Series:Journal of Biomechanical Science and Engineering
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jbse/12/2/12_16-00544/_pdf/-char/en
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author Ying-Ki FUNG
Ming-Sheng CHAN
Yin-Shin LEE
Tzyy-Yuang SHIANG
author_facet Ying-Ki FUNG
Ming-Sheng CHAN
Yin-Shin LEE
Tzyy-Yuang SHIANG
author_sort Ying-Ki FUNG
collection DOAJ
description The purpose of this study was to determine the neuromuscular and metabolic changes among three selected preferred transition speeds (PTS) and two types of gait (walk and run). Twelve male subjects were enrolled to participate in this study. Vicon® motion capture system, Biopac® Electromyography and Cosmed® Indirect Calorimeter were used to determine the kinematics, neuromuscular control and metabolic expenditure, respectively. Subjects were asked to walk and run repeatedly under three different speed (75, 100, 125% PTS). The results show that thigh/shank iEMG ECC/CON ratio illustrates the metabolic change among different PTSs. A significant inefficient shank muscle activation was initially occurred under 100% PTS, furthermore thigh muscle became inefficient under 125% PTS. It is suggested that “muscle elastic capacity” may contribute to the changes in muscle activation between walking and running under different PTSs. During walking, the increase in walking speed may lead to decreased utilization of muscle elastic energy, whereas it is opposite the case for running. This study provides a different approach to clarify the unexplored area between physiological and neuromuscular system on PTS.
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spelling doaj.art-526878fa649b43c1b9f21639eb28795a2022-12-22T00:56:27ZengThe Japan Society of Mechanical EngineersJournal of Biomechanical Science and Engineering1880-98632017-03-0112216-0054416-0054410.1299/jbse.16-00544jbseThe comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speedYing-Ki FUNG0Ming-Sheng CHAN1Yin-Shin LEE2Tzyy-Yuang SHIANG3Department of Physical Education, National Taiwan Normal UniversityDivision of Biokinesiology and Physical Therapy, The University of Southern CaliforniaDepartment of Physical Education, National Taiwan Normal UniversityDepartment of Athletic Performance, National Taiwan Normal UniversityThe purpose of this study was to determine the neuromuscular and metabolic changes among three selected preferred transition speeds (PTS) and two types of gait (walk and run). Twelve male subjects were enrolled to participate in this study. Vicon® motion capture system, Biopac® Electromyography and Cosmed® Indirect Calorimeter were used to determine the kinematics, neuromuscular control and metabolic expenditure, respectively. Subjects were asked to walk and run repeatedly under three different speed (75, 100, 125% PTS). The results show that thigh/shank iEMG ECC/CON ratio illustrates the metabolic change among different PTSs. A significant inefficient shank muscle activation was initially occurred under 100% PTS, furthermore thigh muscle became inefficient under 125% PTS. It is suggested that “muscle elastic capacity” may contribute to the changes in muscle activation between walking and running under different PTSs. During walking, the increase in walking speed may lead to decreased utilization of muscle elastic energy, whereas it is opposite the case for running. This study provides a different approach to clarify the unexplored area between physiological and neuromuscular system on PTS.https://www.jstage.jst.go.jp/article/jbse/12/2/12_16-00544/_pdf/-char/enelectromyographymuscle efficiencymuscle elastic capacitymetabolic expenditurelocomotion
spellingShingle Ying-Ki FUNG
Ming-Sheng CHAN
Yin-Shin LEE
Tzyy-Yuang SHIANG
The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
Journal of Biomechanical Science and Engineering
electromyography
muscle efficiency
muscle elastic capacity
metabolic expenditure
locomotion
title The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
title_full The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
title_fullStr The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
title_full_unstemmed The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
title_short The comparison of EMG characteristics and metabolic cost between walking and running near preferred transition speed
title_sort comparison of emg characteristics and metabolic cost between walking and running near preferred transition speed
topic electromyography
muscle efficiency
muscle elastic capacity
metabolic expenditure
locomotion
url https://www.jstage.jst.go.jp/article/jbse/12/2/12_16-00544/_pdf/-char/en
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