MEASUREMENT REPRODUCIBILITY AND VALIDITY OF A COMPUTERIZED SYSTEM FOR MUSCLE STRENGTH EVALUATION

Authors
  1. Jacobs, I.
  2. Pope, J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
This report describes the reproducibility and validity of a computerized muscle strength evaluation system, the Ariel Computer Exercise (ACE) system. Force measurement was examined on three trials on each of three separate days by comparing the ACE readout of an applied force to known calibration weights applied to the ACE. Angular velocity was examined by comparing various velocities chosen via ACE software commands to the actual velocity of the ACE lever arm measured with a micro-switch activated timer. Intra-subject reproducibility was evaluated by having six subjects perform maximal contractions on three separate days at various angular velocities. The results indicate that reproducible and valid force measurements and angular velocities are achieved with the ACE provided the system is calibrated according to the manufacturer's specifications at least once daily.
Report Number
84-C-75 — Technical Communication
Date of publication
15 Jan 1985
Number of Pages
22
DSTKIM No
85-01056
CANDIS No
45878
Format(s):
Hardcopy;Originator's fiche received by DSIS

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