Effects of age and gender on maximum voluntary range of motion of the upper body joints

Article Abstract:

The maximum voluntary range of motion (ROM) of the major joints of the upper body is studied in a seated position and compared between young and elderly subjects. It is observed that age have no uniform effect on the ROM of the joints but its effect on ROM was joint specific and motion specific and the highest loss of ROM was observed in the neck, and trunk.

Science & research, Joints, Joints (Anatomy), Comparative analysis, Range of motion

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Ranking of static non-neutral postures around the joints of the upper extremity and the spine

Article Abstract:

A ranking system for studying the effects of various non-neutral postures on the stress of upper-body joints and the spine is presented. All ranking are relative to the neutral position, and are meant to be used ion the study musculoskeletal loading. Shoulder position were found to be the most influential, followed by neck position and some wrist movements.

Physiological aspects, Musculoskeletal system, Posture

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