Evaluation of performance for selective lower leg muscle activity during walking on computer controlled treadmill system

Takeshi Sato, Takayuki Watanabe, Hiroshi Yasuoka, Kazuaki Kawashima, Masami Miyazaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study were to evaluate Electromyogram (EMG) activity with a change of walking speed on computer controlled treadmill and to difference EMG activity for each speed of horizontal and decline backward walking. Healthy subjects participated in this experience walked for each speed 5 minute in order of three different speed; 2, 4 km per hour on the computer controlled treadmill and EMG activity from lower limb muscles (rectus femoris, vastus medialis, biceps femoris, tibialis anterior, medial gastrocnemius and soleus) were recorded. The EMG data rectified and data processing all waves, and calculated the integrated EMG (iEMG) and motor units activity. Statistical processing used one way repeated measures ANOVA (=0.05). Consequently, EMG activity has increased with the rise of walking speed. At the same speed for difference of forward and backward walking, especially selective TA muscle activity was significantly high value than forward walking. It was consider that muscle atrophy of aging was prevented on backward walking. More specifically it has experimental speculation that backward walking was to perform common activities of daily living for elderly to prevent motor disfunctions.

Original languageEnglish
Title of host publication11th IFAC/IFIP/IFORS/IEA Symposium on Analysis, Design, and Evaluation of Human-Machine Systems, HMS 2010
PublisherIFAC Secretariat
EditionPART 1
ISBN (Print)9783902661944
DOIs
Publication statusPublished - 2010
Event11th IFAC/IFIP/IFORS/IEA Symposium on Analysis, Design, and Evaluation of Human-Machine Systems, HMS 2010 - Valenciennes, France
Duration: 2010 Aug 312010 Sep 3

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
Volume11
ISSN (Print)1474-6670

Conference

Conference11th IFAC/IFIP/IFORS/IEA Symposium on Analysis, Design, and Evaluation of Human-Machine Systems, HMS 2010
CountryFrance
CityValenciennes
Period10/8/3110/9/3

Keywords

  • Computer controlled systems
  • Ergonomics
  • Motor units
  • Performance
  • Walking

ASJC Scopus subject areas

  • Control and Systems Engineering

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