Recruitment and Decruitment of Motor Units Activities of M. Biceps Brachii During Isovelocity Movements

Abstract

The purpose of this study is to investigate behaviors of motor units of m. biceps brachii (biceps short head muscle) during flexion movements in wide range of elbow joint angle. In this study, eight surface electromyograms(EMGs) were measured during flexion movements at constant angular velocity (isovelocity) and against constant torque in wide range (from 0 DEG to 120 DEG) of elbow joint angle with a surface electrode array. We identified action potensials of each moitor unit and detected recruitment and decruitment of the identified motor units. We found 42 recruitments and 38 decruitments of the motor units in 42 experimental sessions, 6 subjects.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412365

Entities

People

  • Kenzo Akazawa
  • Ryuhei Okuno

Organizations

  • Osaka University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Classification
  • Decomposition
  • Electrodes
  • Engineering
  • Experimental Data
  • Firing Rate
  • Identification
  • Information Systems
  • Joints (Anatomy)
  • Load Cells
  • Measurement
  • Military Research
  • Muscles
  • Schematic Diagrams
  • Strain Gages
  • Systems Engineering

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