Use of visual perception in estimating static postural stresses: magnitudes and sources of errors
Very little is known about the magnitudes and sources of errors associated with the visual estimation of postural classification displayed on TV screens. This study was conducted to address this issue. Sixty-three subjects participated in the experiments. The findings indicate that: (1) subjects fou...
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| Veröffentlicht in: | Ergonomics 1995-09, Vol.38 (9), p.1841-1850 |
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| container_title | Ergonomics |
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| creator | BALUYUT, R. GENAIDY, A. M. DAVIS, L. S. SHELL, R. L. SIMMONS, R. J. |
| description | Very little is known about the magnitudes and sources of errors associated with the visual estimation of postural classification displayed on TV screens. This study was conducted to address this issue. Sixty-three subjects participated in the experiments. The findings indicate that: (1) subjects found it difficult to evaluate upper extremity postures (particularly the elbow and the wrist), while the postures around the lower back were the easiest to evaluate; (2) the lower extremity positions affected the ability of the subjects to accurately classify postures around the wrist, elbow, shoulder, neck, and lower back, with the estimates being > 70% for sitting and > 60% for standing (except for the elbow); and (3) in general, flexion and extension are easier to evaluate than neutral and non-neutral postures. |
| doi_str_mv | 10.1080/00140139508925231 |
| format | Article |
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| ispartof | Ergonomics, 1995-09, Vol.38 (9), p.1841-1850 |
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| subjects | Adult Applied physiology Arm - physiology Back - physiology Biological and medical sciences Biomechanical Phenomena Computer Terminals Data Display Ergonomics Ergonomics. Work place. Occupational physiology Eyes & eyesight Human physiology applied to population studies and life conditions. Human ecophysiology Humans Joints - physiology Male Medical sciences Postural classification Posture - physiology Sensory perception Space life sciences Stress, Physiological - physiopathology Television Time and Motion Studies Visual perception Visual Perception - physiology |
| title | Use of visual perception in estimating static postural stresses: magnitudes and sources of errors |
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