Static force exertion in postures with different degrees of freedom

Article Abstract:

Two women and three men participated in the study to look into the dynamics of human force exertion. Operation of a product must be user-friendly to both the weakest and the strongest user. Force data selected by users and standardized postures are tested for their reproducibility. It had been concluded that force exertion in free posture offers additional benefits and is therefor most compatible for design research. Free posture as a tool for generating information on force exertion and standing room requirements is proposed.

Physiological aspects, Work design

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Validity of self-reporting and video-recording for measuring knee-straining work postures

Article Abstract:

A range of methods have been used to quantify the degree of exposure to knee disorders due to kneeling and squatting working postures. Goniometers or video-recordings can provide continuous measurement of working posture and are more exact than self-reporting. The self-reporting duration of knee straining work postures was compared with video-recording. Reliable estimates of the duration of knee straining work can be obtained from video-observation, but the method is time-consuming.

Injuries, Knee, Knee injuries

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Postural discomfort and perceived exertion in standardized box-holding postures

Article Abstract:

Issues concerning an experiment conducted to measure the strain on the body associated with 168 postures used in a box-holding task are examined. Topics include the use of the Ovako Working-posture Analysing System; measurements for back, arm, and leg stress as a variant of two types of weights used; and implications for ergonomic design for workers in a service economy.

United States, Health aspects, Statistical Data Included

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