A biomechanical evaluation of lifting speed using work- and moment-related measures

A biomechanical evaluation of lifting speed was conducted in the laboratory. The study investigated the effects of lifting speed on several predetermined biomechanical cost functions. The lifting tasks consisted of five lifting speeds labelled as the slowest, slow, normal, fast and fastest, and thre...

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Bibliographic Details
Published in:Ergonomics 1999-08, Vol.42 (8), p.1051-1059
Main Authors: LIN, C. J., BERNARD, T. M., AYOUB, M. M.
Format: Article
Language:English
Subjects:
Acceptable Weight Of Lift
Adult
Analysis of Variance
Applied physiology
Biological and medical sciences
Biomechanical Phenomena
Biomechanics
Ergonomics
Ergonomics. Work place. Occupational physiology
Human physiology applied to population studies and life conditions. Human ecophysiology
Humans
Lifting
Lifting Speed
Male
Manual Materials Handling
Materials handling
Maximum
Measurement
Medical sciences
Models, Biological
Movement - physiology
Psychophysiology
Space life sciences
Subjective testing
Time Factors
Velocity
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Summary:A biomechanical evaluation of lifting speed was conducted in the laboratory. The study investigated the effects of lifting speed on several predetermined biomechanical cost functions. The lifting tasks consisted of five lifting speeds labelled as the slowest, slow, normal, fast and fastest, and three weights, 50, 65 and 80% of their maximum acceptable weight of lift. The speed at each level was determined individually by each subject according to their capability. The study found that work-related measures, including the total net muscle work, total absolute net muscle work and work done to the load, decreased significantly as the lifting speed increased (p
ISSN:0014-0139
1366-5847
DOI:10.1080/001401399185135