A new method for estimating hand internal loads from external force measurements

Article Abstract:

A biomechanical model is used to understand the functions of exerted forces on the internal tissues for different hand functions, gripping tasks and handle design. The results prove that tendon tension increases from the smallest size handle to the largest in spite of the grip force magnitude decreasing.

Models, Measurement, Physiological aspects, Hand, Grip strength

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Dynamic biomechanical model of the hand and arm in pistol grip power handtool usage

Article Abstract:

Research describing the mechanical torsional system in using hand power tools is presented, with focus on measuring the tool reaction displacement and the relation between posture and hand-arm response. A mechanical model indicating a passive single degree-of-freedom is obtained.

Health aspects, Causes of, Power tools, Motor ability, Motor skills, Repetition strain injury, Cumulative trauma disorders

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Short-term changes in upper extremity dynamic mechanical response parameters following power hand tool use

Article Abstract:

Changes in mechanical response parameters are observed for inexperienced power hand tool users following short duration tool operation. A biomechanical model is used to estimate handle force and displacement associated with the tool factors.

Science & research, Cutlery and Handtool Manufacturing, Cutlery, Handtools, and Hardware, Cutlery, Hand Tools & Hardware, Research, Hand tools, Force and energy, Forces (Physics)

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