Changes in upper limb muscle activity during smartphone usage while in stable and unstable positions and during gait

Kim, You Lim; Lee, Suk Min; Lee, Hyun-Soo; Song, Juyeong; Song, Si-On; Seol, Min-Ji; Jang, Yu-Mi; Im, Jin-Sik; Im, Ji-Woo

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자료유형: 학술저널

저자정보: Kim, You Lim (Division of Healthcare Technology Assessment Research/National Evidence-based Healthcare Collaborating Agency) Lee, Suk Min (Department of Physical Therapy, College of Health and Welfare, Sahmyook University) Lee, Hyun-Soo (Department of Physical Therapy, The Graduate School, Sahmyook University) Song, Juyeong (Department of Physical Therapy, The Graduate School, Sahmyook University) Song, Si-On (Department of Physical Therapy, The Graduate School, Sahmyook University) Seol, Min-Ji (Department of Physical Therapy, The Graduate School, Sahmyook University) Jang, Yu-Mi (Department of Physical Therapy, The Graduate School, Sahmyook University) Im, Jin-Sik (Department of Physical Therapy, The Graduate School, Sahmyook University) Im, Ji-Woo (Department of Physical Therapy, The Graduate School, Sahmyook University)

저널정보: 물리치료재활과학회 Physical therapy rehabilitation science Physical therapy rehabilitation science 제7권 제3호

발행연도: 2018.1

수록면: 119 - 126 (8page)

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Objective: The objective of this study was to describe the influence of smartphone usage on the upper limb muscles while in stable and unstable positions and during gait. Design: Cross-sectional study. Methods: The study was conducted with 20 right-handed university students between 20 and 27 years of age. Experiments were carried out on students who have used cell phones for more than a year. In this study, experiments were performed with one-handed and two-handed smartphone operations while on stable ground, and the same parameters were measured during smartphone use on unstable ground and during gait. Subjects were instructed to write a text message in Korean on the smartphone for 3 minutes. This was repeated 3 times, with a rest period of 10 seconds given between each 3-minute period. Electromyography was used to record the muscle activity of the upper trapezius, extensor carpi radialis, extensor pollicis longus, and abductor pollicis (AP) during phone operation. Results: The muscle activity value for the right AP in one-handed and the left-AP in two-handed operations was statistically higher than the other muscles in the stable position and during gait (p<0.0001). Also, the right AP in the one- handed operation condition was statistically higher than the two-handed condition (p<0.0001). Conclusions: The use of smartphones while in a stable position resulted in high muscle activity of the right upper limb AP. However, in an unstable position, there were no significant differences from the other muscle activities. Using smartphone while assuming various positions may lead to musculoskeletal disorders in different places.

#Electromyography #Posture #Smartphone

참고문헌 (3)

참고문헌 신청

김철민 / 2011 / 모바일 폰의 반복 사용 시 입력방식에 따라 엄지손가락에 발생하는 힘과 피로에 대한 비교평가 / 의공학회지 32(4):312~318

김유림 / 2016 / The comparison of muscle activity according to various conditions during smartphone use in healthy adults / Physical Therapy Rehabilitation Science 5(1):15~21

이경용 / 2013 / 앉은 자세에서 지지면의 안정성이 편마비 환자의 상지기능 수준과 체간 근활성도에 미치는 영향 / 대한작업치료학회지 21(2):61~73

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이 논문의 저자 정보

Kim, You Lim

소속기관 Division of Healthcare Technology Assessment Research/National Evidence-based Healthcare Collaborati

주요연구분야 의약학 > 임상의학 > 물리치료학

논문수 3 이용수 3

Lee, Suk Min

소속기관 Department of Physical Therapy, College of Health and Welfare, Sahmyook University

주요연구분야 의약학 > 임상의학 > 물리치료학

논문수 4 이용수 5

Lee, Hyun-Soo