지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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According to the frequent use of mobile devices, risk of repetitive strain injury for the finger joints was increasing recently. The purpose of this study was to investigate the difference of muscular endurance limit of the thumb between adults and children. A total of thirty subjects (15 adults: 41.0 ± 7.9 years and 15 children: 9.5 ± 2.7years) was recruited for this experiment. Maximum voluntary contraction (MVC) of the thumb was measured for 100 trials for each subject by using a push-pull gauge. From the maximum peak value obtained, three main factors (MVC, endurance limit, and fatigue index) were defined to quantify fatigue characteristics of the thumb flexor muscle.
The experimental results showed that the mean of MVC, endurance limit, and fatigue index of the children were approximately 50% compared to the adults (p < 0.001). From the results of Pearson correlation test, the endurance limit was highly correlated with weight, age, hand length rather than height. Based on this study, children are more vulnerable to repetitive task using the thumb such as text/SNS messaging, gaming, and scrolling.
목차
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참고문헌 (15)
참고문헌 신청
/ / Korean Statistical Information Service
B. Lindstrm / 1997 / Skeletal muscle fatigue and endurance in young and old men and women / J. Gerontol 52A (1) : B59 ~ 66
D.Q. Kim / 1998 / The effect of VDT work on work-related musculoskeleta disorder / Kor. J Occup. Environ. Med 10 (4) : 524 ~ 533
E. Gustafsson / 2010 / Thumb postures and physical loads during mobile phone use-A comparison of young adults with and without musculoskeletal symptoms / J. Electromyogr. Ki
F.R. Ong / 2008 / “Thumb motion and typing forces during text messaging on a mobile phone,” in Proc / 13th International Conference on Biomedical Engineering, Singapore : 2095 ~
B. Lindstrm / 1997 / Skeletal muscle fatigue and endurance in young and old men and women / J. Gerontol 52A (1) : B59 ~ 66
D.Q. Kim / 1998 / The effect of VDT work on work-related musculoskeleta disorder / Kor. J Occup. Environ. Med 10 (4) : 524 ~ 533
E. Gustafsson / 2010 / Thumb postures and physical loads during mobile phone use-A comparison of young adults with and without musculoskeletal symptoms / J. Electromyogr. Ki
F.R. Ong / 2008 / “Thumb motion and typing forces during text messaging on a mobile phone,” in Proc / 13th International Conference on Biomedical Engineering, Singapore : 2095 ~
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