EFFECT OF D-TUBOCURARINE ON THE SCALING OF EFFORT OF ISOMETRIC MUSCLE CONTRACTIONS.

Abstract

The purpose of this study was to determine whether the alteration in voluntary strength produced by d-tubocurarine, and the consequent reduction in feedback from the muscles, would distort a subject's normal reference for judging the effortfulness of a task, and change the slope of the effort function. The effort function obtained with d-tubocurarine was not significantly different from those secured in the normal and placebo conditions. Thus, it was concluded that the motor units remaining functional after the administration of d-tubocurarine fatigue normally, and that the slope of the effort function is determined by the relative rather than the absolute number of motor units required to maintain the contraction. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 07, 1968
Accession Number
AD0666749

Entities

People

  • Donald M. Thomas
  • Lee S. Caldwell
  • Richard P. Smith

Organizations

  • United States Army Medical Research Laboratory

Tags

DTIC Thesaurus Topics

  • Feedback
  • Neuromuscular Agents
  • Peripheral Nervous System Agents
  • Pharmacologic Actions

Readers

  • Military Logistics and Supply Chain Management
  • Systems Analysis and Design
  • Vision Science/Vision Psychology/Cognitive Neuroscience.