대한의용생체공학회:의공학회지 (Journal of Biomedical Engineering Research)

  • 제28권6호
  • /
  • Pages.832-839
  • /
  • 2007
  • /
  • 1229-0807(pISSN)
  • /
  • 2288-9396(eISSN)
대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
권호 표지
DOI QR코드

DOI QR Code

MR 회전형 브레이크를 이용한 하지 근력 증진용 헬스 자전거 개발

Development of a Health Bicycle for Improving the Muscle Strength of Lower Limb using MR Rotary Brake

  • 윤영일 (전북대학교 대학원 헬스케어공학과) ;
  • 권대규 (전북대학교 공과대학 생체정보공학부) ;
  • 김동욱 (전북대학교 공과대학 생체정보공학부) ;
  • 김정자 (전북대학교 공과대학 생체정보공학부) ;
  • 김남균 (전북대학교 공과대학 생체정보공학부)
  • Yoon, Y.I. (Dept. of Healthcare Engineering Graduate School, Chonbuk National Univ.) ;
  • Kwon, T.K. (Div. of Biomedical Engineering, College of Engineering, Chonbuk National Univ.) ;
  • Kim, D.W. (Div. of Biomedical Engineering, College of Engineering, Chonbuk National Univ.) ;
  • Kim, J.J. (Div. of Biomedical Engineering, College of Engineering, Chonbuk National Univ.) ;
  • Kim, N.G. (Div. of Biomedical Engineering, College of Engineering, Chonbuk National Univ.)
  • 발행 : 2007.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, a new bicycle system was developed to improve muscular strength using the Magneto-Rheological(MR) rotary brake. The friction load of the MR rotary brake is adjusted according to muscle strength of the subjects. The characteristic of muscular strength was studied with various friction loads of MR rotary brake. The friction load was occurred with the current, applied to the MR. rotary brake. Experiments was composed of several cycling trials for various friction loads. In training programs involving muscle improvement, it is necessary to confirm muscle activity and fatigue. To measure the muscle activity and fatigue, EMG signals of rectus femoris (RF), biceps femoris (BF), tensor fasciae latae (TFL), vastus lateralis (VL), vastus medialis (VAS), gastrocnemius (GAS), tibialis anterior (TA) and soleus (SOL) muscles were collected with surface electromyography and analyzed into time and frequency domain. The experimental results showed that the muscle activity according to the applied current to the MR rotary brake was significantly different. The more the current was applied, the higher value of the integrated EMG (IEMG) was obtained. Especially, the magnitude of IEMG of the RF, BF, TFL and VL varied in direct proportion to the current. However, there was not significant in the median frequency as the cycling time continue.

키워드

참고문헌

  1. C. I. Lee, S. D. Han, 'Health of korean elder(study on the knowledge, habit and physical strength),' Hallym Academy of Sciences, pp. 79, Seoul, 2001
  2. Brown, M., Sinacore, D. R., host, H. H.. 'The relationship of power to function in the older abult,' Journal of Geronto., vol. 50, pp. 55-59, 1995
  3. C. G. Song, J. Y. Kim, N. G. Kim, 'A new postural balance control system for rehabilitation training based on virtual cycling,' IEEE Transaction on Rehabilitation Engineering, vol. 8, pp. 200-207, 2004
  4. Y. J. Piao, M. Yu, T. K. Kwon, C. U. Hong, N. G. Kim, 'Development of training system for equilibrium sense using the unstable platform,' Journal of Korea Society of Precision Engineering, vol. 22, pp. 192-198, 2005
  5. Cohen H. Blatchly CA., Combash LL., 'A study of the clinical test of sensory interaction and balance,' Physical Therphy, vol. 73, pp. 346-354, 1993 https://doi.org/10.1093/ptj/73.6.346
  6. Jung-Byung Chae, Byung-Jo Kim, Sung-Soo Bae, 'A study on the control factors of posture and balance,' Journal of Korean Society of Physical Therapy, vol. 13, no. 2, pp. 421-431, 2001
  7. Per Hoiness, Thomas Clott, Frank Ingjer, 'High-intensity training with a bi-directional with a bi-directional bicycle pedal improves performance in mechanically unstable ankles a prospective randomized study of 19subjects,' Scandianvian Journal of Medicine and Science in Sports, vol.13, pp. 266-271, 2003 https://doi.org/10.1034/j.1600-0838.2003.10140.x
  8. D. Roberts, E. Ageberg, G. Andersson, T. Friden, 'Effects of short-term cycling on knee joint proprioception in ACL-deficient patients,' Knee Surg Sports Traumatol Arthrosc, vol. 12, pp. 357-363, 2004
  9. R. R. Neptune, 'Adaptation of muscle coordination to altered task mechanics during steady-state cling,' Journal of Biomechanics, vol. 33 pp. 165-172, 2000 https://doi.org/10.1016/S0021-9290(99)00149-9
  10. MR Rotary Brake (RD-2087-01), LORD Corporation, USA, http://www.lord.com
  11. Lena H. Ting, Steven A. Kautz, David A. Brown, Felix E. Zajac, 'Contralateral movement and extensor Force generation Alter flexion phase muscle coordination in pedaling,' Journal of Neurophysiology, vol. 83, pp. 3351-3365, 2000 https://doi.org/10.1152/jn.2000.83.6.3351
  12. S. A. Kautz, D. A. Brown, H.F.M. Van der Loos, F. E. Zajac, 'Mutability of bifunctional thigh muscle activity in pedaling due to contralateral leg force generation,' Journal of Neurophysiology, vol. 88, pp. 1308-1317, 2002 https://doi.org/10.1152/jn.2002.88.3.1308
  13. Vollestad NK., 'Measurement of human muscle fatigue,' Journal of Neuroscience Methods, vol. 74, pp. 219-227, 1997 https://doi.org/10.1016/S0165-0270(97)02251-6
  14. Bilodeau, A. Bertrand Arsenaultl, Denis Gravel, Daniel Bourbonnais, 'The influence of an increase in the level of force on the EMG power spectrum of elbow extensors,' European Journal of Applied Physiology, vol. 61, pp. 461-466, 1990 https://doi.org/10.1007/BF00236068
  15. Scott K. P., Edward T. H., 'Exercise physiology : theory and application to fitness and performance (4th edition),' McGraw- Hill, pp. 132-136, 2001
  16. Ebenbichler G., Kollmitzer J., Quittan M., Uhl F., Kirtley C., Fialka V., 'EMG fatigue patterns accompanying isometric fatiguing knee-extensions are different in mono- and bi-articular muscles,' Electroencephalography and Clin Neurophysiology, vol. 109, pp. 256-262, 1998 https://doi.org/10.1016/S0924-980X(98)00015-0
  17. Masuda K., Masuda T., Sadoyama T., Mitsuharu Inaki, Katsuta S., 'Changes in surface EMG parameters during static and dynamic fatiguing contractions,' Journal of Electromyography and Kinesiology, vol. 9, pp. 39-46, 1999 https://doi.org/10.1016/S1050-6411(98)00021-2
  18. J. R. Potvin, 'Effects of muscle kinematics on surface EMG amplitude and frequency during fatiguing dynamic contractions,' Journal of Applied Physiology, vol. 82, pp. 144-151, 1997 https://doi.org/10.1152/jappl.1997.82.1.144
  19. Gerdle B., Larsson B., Karlsson S., 'Criterion validation of surface EMG variables as fatigue indicators using peak torque a study of repetitive maximum isokinetic knee extensions,' Journal of Electromyography and Kinesiology, vol. 10, pp. 225-232, 2000 https://doi.org/10.1016/S1050-6411(00)00011-0