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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 19 - 26 (8page)
이용수
초록· 키워드
오류제보하기
The smart-phone has become a necessity for most people. In this study, we determined that using a smart-phone for 20 minutes can cause increased neck and shoulder muscle activities and fatigue. Seventeen healthy male smart-phone users who attended Yonsei University played a smart-phone game for 20 minutes and changes in their bilateral cervical erector spinae and upper trapezius muscle activities and fatigue were measured. To assess muscle activities and fatigue, we used the following variables: the median frequency, the 50th percentile Amplitude probability distribution function (APDF) value (median load), and the discrepancy in the 90th percentile APDF value and the 10th percentile APDF value (APDF range). A paired t-test was used to compare pre-smart-phone-use status with post-smart-phone-usestatus. The median frequency of the bilateral cervical erector spinae and the upper trapezius decreased significantly after 20 minutes of smart-phone use (p<.05). In addition, the 50th percentile APDF value of the bilateral cervical erector spinae and the right upper trapezius increased significantly (p<.05). The APDF range of the bilateral cervical erector spinae and the upper trapezius also increased significantly (p<.05). However, the 50th percentile APDF range of the left upper trapezius was not significantly different (p>.05). These findings suggest that using smart-phones for 20 minutes can induce muscle fatigue and increased neck and shoulder muscle activities.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Arendt-Nielsen L / 1985 / The relationship between mean power frequency of the emg spectrum and muscle fibre conduction velocity / Electroencephalogr Clin Neurophysiol 60 (2)
Christensen H / 1986 / Muscle activity and fatigue in the shoulder muscles during repetitive work. An electromyographic study / Eur J Appl Physilo Occup Physiol 54 (6) : 596
Criswell E / 2010 / Cram’s Introduction to Surface Electromyography / Jones & Bartlett Publishers : 49 ~ 53
Gerdle B / 1989 / Muscular fatigue during repeated isokinetic shoulder forward flexions in young females / Eur J Appl Physiol Occup Physiol 58 (6) : 666 ~ 673
Greig AM / 2005 / Cervical erector spinae and upper trapezius muscle activity in children using different information technologies / Physiotherapy 91 (2) : 119 ~ 126
Christensen H / 1986 / Muscle activity and fatigue in the shoulder muscles during repetitive work. An electromyographic study / Eur J Appl Physilo Occup Physiol 54 (6) : 596
Criswell E / 2010 / Cram’s Introduction to Surface Electromyography / Jones & Bartlett Publishers : 49 ~ 53
Gerdle B / 1989 / Muscular fatigue during repeated isokinetic shoulder forward flexions in young females / Eur J Appl Physiol Occup Physiol 58 (6) : 666 ~ 673
Greig AM / 2005 / Cervical erector spinae and upper trapezius muscle activity in children using different information technologies / Physiotherapy 91 (2) : 119 ~ 126
이 논문의 저자 정보
최근 본 자료
댓글(0)
0