Isometric Pull and Push Strengths of Paraplegics in the Workspace: 1. Strength Measurement Profiles

The isometric strength profiles of male and female paraplegics were determined for pull and push strengths in the normal, maximum, and extreme working reach envelopes. A computerized isometric strength measurement system was designed and constructed for the purpose. The strongest pull location was a...

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Bibliographic Details
Published in:International journal of occupational safety and ergonomics 2000-01, Vol.6 (1), p.47-65
Main Authors: Das, Biman, Black, Nancy L.
Format: Article
Language:English
Subjects:
Adult
Arm - physiology
Biomechanical Phenomena
Female
Hand Strength
Humans
Isometric Contraction - physiology
isometric strength measurement
Male
Paraplegia - physiopathology
paraplegics
pull and push strengths
reach envelopes
Sex Factors
Wheelchairs
working conditions
workspace
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Description
Summary:The isometric strength profiles of male and female paraplegics were determined for pull and push strengths in the normal, maximum, and extreme working reach envelopes. A computerized isometric strength measurement system was designed and constructed for the purpose. The strongest pull location was at extreme reach vertically above the shoulder and the strength values for males and females were 473 and 318 newtons (N), respectively. The strongest push location was at maximum reach, at vertical (ϕ) angle of 45° and at horizontal (θ) angle of 45° for males and at 0° for women and the strength values were 235 and 172 N, respectively. The nature of the strength profiles was found to be similar for both the sexes. The pull and push strengths of the female were 77 and 68% that of the male, respectively.
ISSN:1080-3548
2376-9130
DOI:10.1080/10803548.2000.11076443