Torque-based triggering improves stimulus timing precision in activation tests

Muscle Nerve. 2009 Jul;40(1):130-3. doi: 10.1002/mus.21279.

Abstract

The aim of this study was to assess whether automated torque-based stimulator triggering could improve precision in delivering stimuli near peak torque during voluntary activation tests. The quadriceps activation test was used as a test model in 11 volunteers. Automated torque-based triggering reduced stimulus delivery timing errors by 75% when compared with conventional automated time-based triggering. Torque-based stimulator triggering is recommended as an alternative to automated time-based triggering in voluntary activation tests, as it improves stimulus timing precision and thereby reduces measurement error.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Automation / methods
  • Electric Stimulation / instrumentation*
  • Electromyography / methods
  • Exercise / physiology
  • Female
  • Humans
  • Isometric Contraction / physiology*
  • Male
  • Muscle, Skeletal / physiology*
  • Statistics, Nonparametric
  • Time Factors
  • Torque*