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일부 초등학교 학생들의 책상 및 의자상태와 이용자세에 따른 신체증상에 관한 연구
윤수홍,박상래,안형자 한국위생과학회 1998 한국위생과학회지 Vol.4 No.1
This study was conducted to investigate the physical symptoms by postures and conditions of used chairs and desks for 515, 6th-grade students in an elementary school in Koryung-kun, Kyeongsangbukdo from December 20, 1997 to March 30, 1998. Children who have experienced trunk and low back pain were the higher 44.1%, low extremities 29.1%, neck 27.8%, upper extremities and shoulders 19.6%, gluteal pain 14.7% in the physical symptoms by using chairs and desks in class. Children(10.7%) who sat uprightly were lower than the others(71.8%) in a posture seated an the chair. Forward hyperflexion was the highest 63.8%, backward hyperextension 21.9%, left and right bending 11.9% in the reason why didn't sit in a correct posture. In the distribution of a posture seated an the chair by gender, boys 72.7% that answer a wrong posture were similar to girls' 70.9%, girls forward hyperflexion 69.1% was higher than boys' that 58.9%, boys' backward hyperextension 29.2% was higher than girls' that 14.0%, and girls' left and righ lateral flexion 14.0% was a sightly higher than boys' that 9.9% in the reason of wrong postures. There were upper extremities and shoulders(P=0.001), trunk and low bask pain(P=0.001) and low extremities pain(P=0.001) in the significant variables associated with height of desk compare to pain part of bodies. Children who answered low(each 34.7%, 33.9%, 46.7%) were higher than that of high(7.9%, 3.5%, and 7.3%). The significant variables related to the height of chairs and physical symptoms were neck(P=0.001), upper extremities and shoulders (P=0.003), trunk and low back(P=0.001), gluteus(P=0.001), and low extremities(P=0.001). Children' s physical symptoms rates are 34.3%, 34.6%, 33.0%, 40.8%, and 37.3% that answer low were higher than those of others' 5.6%,6.9%, 4.8%, 1.3%, and 8.0%, each others. The relationship between physical symptoms and seatpan, trunk and low back pain(P=0.006), gluteal pain(P=0.001) were significant variables. Broad in seatpan condition 11.4% was similar to narrow 11.0% in trunk and low back pain. Narrow in seatpan condition 25.0% was higher than broad 9.2% in gluteal pain. Trunk and low back pain was significantly associated with a posture seated an the chair(P=0.025), from Children' s 77.9% that answer a wrong posture.
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