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
- 2020.4
- 수록면
- 143 - 154 (12page)
- DOI
- 10.5143/JESK.2020.39.2.143
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초록· 키워드
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Objective: The aim of this study was to identify changes in bio-parameters before and after muscle fatigue according to the health status of the lumbar muscles.
Background: Low back pain is frequently occurring pain area in various industrial field. There are a lot of researches that compare bio-parameters on healthy people and low back pain patients or analyze the change on bio-parameter by fatigue effect. However, researches that compare bio-parameters on lumbar muscle health and fatigue are insufficient.
Method: The experiment was conducted on 15 male adults. All participants performed Sorensen test that was consist of 30 seconds of task / 30 seconds of rest for 20 minutes. Myovision was used to classify muscle and people health condition into three types (chronic, normal, acute) according to muscle activity and a variety of bio-parameters were used to compare fatigue pre/post.
Results: As a result, the Flexion Relaxation Ratio (FRR) decreased in the normal muscle group and increased in the acute muscle group after muscle fatigue. Although generally the %frequency decreased in all of group, the decrease in normal muscle groups was lower than in chronic/acute muscle groups. Overall, subjective discomfort increased in all muscle groups, but the increase discomfort in normal muscle groups was lower than that of acute muscle groups.
Conclusion: In general, healthy muscle groups showed a decrease in FRR after muscle fatigue, while non-healthy muscle groups showed an increasing trend. Therefore, when assessing muscle fatigue from performing a task using FRR, it might be said that post-classification of muscle health conditions should be performed and then interpreted. In addition, non-healthy muscle group was found to be more vulnerable to fatigue by using fatigue parameters and subjective discomfort. Therefore, nonhealthy muscle groups were likely to require continuous monitoring in industrial field.
Application: Changes in FRR after fatigue would be evaluated differently between healthy and non-healthy muscle groups.
Background: Low back pain is frequently occurring pain area in various industrial field. There are a lot of researches that compare bio-parameters on healthy people and low back pain patients or analyze the change on bio-parameter by fatigue effect. However, researches that compare bio-parameters on lumbar muscle health and fatigue are insufficient.
Method: The experiment was conducted on 15 male adults. All participants performed Sorensen test that was consist of 30 seconds of task / 30 seconds of rest for 20 minutes. Myovision was used to classify muscle and people health condition into three types (chronic, normal, acute) according to muscle activity and a variety of bio-parameters were used to compare fatigue pre/post.
Results: As a result, the Flexion Relaxation Ratio (FRR) decreased in the normal muscle group and increased in the acute muscle group after muscle fatigue. Although generally the %frequency decreased in all of group, the decrease in normal muscle groups was lower than in chronic/acute muscle groups. Overall, subjective discomfort increased in all muscle groups, but the increase discomfort in normal muscle groups was lower than that of acute muscle groups.
Conclusion: In general, healthy muscle groups showed a decrease in FRR after muscle fatigue, while non-healthy muscle groups showed an increasing trend. Therefore, when assessing muscle fatigue from performing a task using FRR, it might be said that post-classification of muscle health conditions should be performed and then interpreted. In addition, non-healthy muscle group was found to be more vulnerable to fatigue by using fatigue parameters and subjective discomfort. Therefore, nonhealthy muscle groups were likely to require continuous monitoring in industrial field.
Application: Changes in FRR after fatigue would be evaluated differently between healthy and non-healthy muscle groups.
목차
1. Introduction
2. Method
3. Results
4. Discussion
5. Conclusions
References
참고문헌 (36)
참고문헌 신청
Boyd-Clark, L. / 2001 / Comparative histochemical composition of muscle fibers in a pre-and a postvertebral muscle of the cervical spine / The Journal of Anatomy 199(6):709~716
Carter, J. B. / 1994 / Musculoskeletal problems in VDT work : a review / Ergonomics 37(10):1623~1648
Collaca, C. J. / 2005 / The biomechanical and clinical significance of the lumbar erector spinae flexion-relaxation phenomenon : a review of literature / Journal of Manipulative and Physiological Therapeutics 28(8):623~631
Coorevits, P. / 2008 / Assessment of the validity of the Biering-Sorensen test for measuring back muscle fatigue based on EMG median frequency characteristics of back and hip muscles / Journal of Electromyography and Kinesiology 18(6):997~1005
Dedering, A. / 1999 / Correlation between electromyographic spectral changes and subjective assessment of lumbar muscle fatigue in subjects without pain from the lower back / Clinical Biomechanics 14(2):103~111
Carter, J. B. / 1994 / Musculoskeletal problems in VDT work : a review / Ergonomics 37(10):1623~1648
Collaca, C. J. / 2005 / The biomechanical and clinical significance of the lumbar erector spinae flexion-relaxation phenomenon : a review of literature / Journal of Manipulative and Physiological Therapeutics 28(8):623~631
Coorevits, P. / 2008 / Assessment of the validity of the Biering-Sorensen test for measuring back muscle fatigue based on EMG median frequency characteristics of back and hip muscles / Journal of Electromyography and Kinesiology 18(6):997~1005
Dedering, A. / 1999 / Correlation between electromyographic spectral changes and subjective assessment of lumbar muscle fatigue in subjects without pain from the lower back / Clinical Biomechanics 14(2):103~111
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