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
- 2019.6
- 수록면
- 191 - 202 (12page)
- DOI
- 10.5143/JESK.2019.38.3.191
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초록· 키워드
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Objective: The purposes of this study were to understand the effects of various levels of force exertions on the mechanical properties of hand muscles and to evaluate the correlation between the changes of mechanical properties and muscle fatigue.
Background: Understanding mechanical properties of human muscles for any types of activities is very important to prevent muscle damages and injuries. Although electromyography (EMG) has been widely used to investigate the muscle activity and fatigue for human movements, EMG system may need a lot of effort and time to install, measure, and analysis. MyotonPRO which is a very simple and fast measurement device has been developed to understand muscle"s mechanical properties for various activities. There is few study for investigation of the mechanical properties such as stiffness, frequency, and decrement using a MyotonPRO.
Method: Twenty healthy young men without orthopedics diseases participated in this study. The mechanical properties (stiffness, frequency, and decrement) of flexor digitorum superficialis were measured by using the MyotonPRO system for various muscle contraction (20%, 40%, 60%, and 80% MVCs) levels. The mechanical properties in resting condition was also measured before and after to understand the fatigue effects. Gender, handedness, pre/post and four-contraction level were assigned as independent variables in this study.
Results: Statistical analysis revealed that the effects of gender, force exertion level, and interaction of gender and force exertion level were statistically significant on the both stiffness and frequency of mechanical properties of the flexor digitorum superficialis. Stiffness and frequency also showed generally increased as muscle fatigued based on the study of pre/post analysis.
Conclusion: Stiffness and frequency, mechanical properties of flexor digitorum superficialis, showed a positive correlation with gender and force exertion level using a MyotonPRO system. These mechanical properties were also related with muscle fatigue.
Application: MyotonPRO would be a good method for evaluating muscle activities of the muscles according to the levels of muscle contractions.
Background: Understanding mechanical properties of human muscles for any types of activities is very important to prevent muscle damages and injuries. Although electromyography (EMG) has been widely used to investigate the muscle activity and fatigue for human movements, EMG system may need a lot of effort and time to install, measure, and analysis. MyotonPRO which is a very simple and fast measurement device has been developed to understand muscle"s mechanical properties for various activities. There is few study for investigation of the mechanical properties such as stiffness, frequency, and decrement using a MyotonPRO.
Method: Twenty healthy young men without orthopedics diseases participated in this study. The mechanical properties (stiffness, frequency, and decrement) of flexor digitorum superficialis were measured by using the MyotonPRO system for various muscle contraction (20%, 40%, 60%, and 80% MVCs) levels. The mechanical properties in resting condition was also measured before and after to understand the fatigue effects. Gender, handedness, pre/post and four-contraction level were assigned as independent variables in this study.
Results: Statistical analysis revealed that the effects of gender, force exertion level, and interaction of gender and force exertion level were statistically significant on the both stiffness and frequency of mechanical properties of the flexor digitorum superficialis. Stiffness and frequency also showed generally increased as muscle fatigued based on the study of pre/post analysis.
Conclusion: Stiffness and frequency, mechanical properties of flexor digitorum superficialis, showed a positive correlation with gender and force exertion level using a MyotonPRO system. These mechanical properties were also related with muscle fatigue.
Application: MyotonPRO would be a good method for evaluating muscle activities of the muscles according to the levels of muscle contractions.
목차
1. Introduction
2. Methods
3. Results
4. Discussion
5. Conclusions
References
참고문헌 (41)
참고문헌 신청
Amann, M. / 2008 / Locomotor muscle fatigue modifies central motor drive in healthy humans and imposes a limitation to exercise performance / The Journal of Physiology 586(1):161~173
Asmussen, E. / 1978 / A central nervous component in local muscular fatigue / European Journal of Applied Physiology and Occupational Physiology 38(1):9~15
Butler, R. J. / 2003 / Lower extremity stiffness: implications for performance and injury / Clinical Biomechanics 18(6):511~517
Cetinus, E. / 2005 / Hand grip strength in patients with Type 2 diabetes mellitus / Diabetes Research and Clinical Practice 70:278~286
Curtin, N. A. / 1989 / Effects of fatigue and reduced intracellular pH on segment dynamics in 'isometric' relaxation of frog muscle fibres / The Journal of Physiology 413(1):159~174
Asmussen, E. / 1978 / A central nervous component in local muscular fatigue / European Journal of Applied Physiology and Occupational Physiology 38(1):9~15
Butler, R. J. / 2003 / Lower extremity stiffness: implications for performance and injury / Clinical Biomechanics 18(6):511~517
Cetinus, E. / 2005 / Hand grip strength in patients with Type 2 diabetes mellitus / Diabetes Research and Clinical Practice 70:278~286
Curtin, N. A. / 1989 / Effects of fatigue and reduced intracellular pH on segment dynamics in 'isometric' relaxation of frog muscle fibres / The Journal of Physiology 413(1):159~174
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