Static and dynamic lifting strength at different reach distances in symmetrical and asymmetrical planes

Article Abstract:

The correlation between physical strength and body posture was quantified in an experiment involving 18 males and 12 females. The subjects underwent stoop lifting and squat lifting to determine the static and dynamic lifting strength at various isometric and isokinetic lifting conditions. The results describe the effect of body position, postural asymmetry and reach of lifting on the human body's maximum attainable strength.

Materials handling, Muscle strength, Lifting and carrying

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Theories of musculoskeletal injury causation

Article Abstract:

Assuming that occupational musculoskeletal injuries are biomechanical in nature, four theories to explain the causes of such injuries are proposed. Reference is made to the Multivariate Interaction Theory, Differential Fatigue Theory, Cumulative Load Theory, and the Overexertion Theory.

Injuries, Causes of, Work-related injuries, Work related injuries, Musculoskeletal system

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Ergonomics and biology of spinal rotation

Article Abstract:

The important information regarding trunk rotation in ergonomics, biological domains and spinal rotation is discussed. The ergonomists have to perform a balancing act between economic and human physical good.

United States, Science & research, Spine, Structure, Ergonomic aid

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