https://scholars.lib.ntu.edu.tw/handle/123456789/204959
Title: | A Comparison of Sitting Posture Adaptations of Pregnant and Non-Pregnant Females | Authors: | LEE, YUNG-HUI TSUANG, YANG-HWEI |
Keywords: | pregnant women;seated workstation;sitting posture | Issue Date: | 1999 | Journal Volume: | v.23 | Journal Issue: | n.5-6 | Start page/Pages: | 391-396 | Source: | INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS | Abstract: | The postural differences between seated pregnant and non- pregnant subjects were studied, and the effects of various sitting workstation designs were assessed. Five pregnant and five non-pregnant subjects participated in this study. The experimental variables were the table- chair-vertical- distance (35 cm and 30 cm) and the seat-inclination-angle (0 degrees, + 10 degrees and + 20 degrees). The seated working postures of the last 10 min of a 50-min sitting session were videotaped and analyzed using a 2D motion analysis system. Postural differences were observed between the pregnant and non-pregnant groups which may be attributed to the changes and/or mechanisms associated with pregnancy. The increased size of the abdomen requires more room in front of the body; in the pregnant subjects this was obtained by holding the upper-arm further from the body, inclining the upper trunk more anterior, and extending the hip more. A seat with a sloping angle of 10 degrees was found to reduce the biomechanical loading on the lower back and in subjective ratings from both groups, was preferred over the other seat angles. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/99103 |
Appears in Collections: | 醫學系 |
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