Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Technical Note : Development of Electric Riding Machine for Cycle Fitting

단신 : 사이클 피팅을 위한 전동 승차 조절기 개발

  • Bae, Jae-Hyuk (Department of Biomedical Engineering, Graduate School of Konkuk University) ;
  • Choi, Jin-Seung (Department of Biomedical Engineering, Graduate School of Konkuk University) ;
  • Kang, Dong-Won (Department of Biomedical Engineering, Graduate School of Konkuk University) ;
  • Seo, Jeong-Woo (Department of Biomedical Engineering, Graduate School of Konkuk University) ;
  • Tack, Gye-Rae (Department of Biomedical Engineering, College of Biomedical & Health Science, Konkuk University)
  • 배재혁 (건국대학교 일반대학원 의학공학과) ;
  • 최진승 (건국대학교 일반대학원 의학공학과) ;
  • 강동원 (건국대학교 일반대학원 의학공학과) ;
  • 서정우 (건국대학교 일반대학원 의학공학과) ;
  • 탁계래 (건국대학교 의료생명대학 의학공학부)
  • Received : 2012.07.31
  • Accepted : 2012.09.20
  • Published : 2012.09.30
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Abstract

The purpose of this study was to develop an electric riding machine for cycle fitting to control riding posture easily, to measure frame size quantitatively, and to overcome disadvantages of the traditional systems. The electric riding machine consisted of actuator, load controller, and display & control unit. The actuator unit by BLDC(BrushLess Direct Current) motor drives the saddle height up and down, the crank forward and backward, the handlebar up and down, and the handlebar forward and backward. The load controller unit controls loads by Eddy current controller with electromagnet and aluminum circular plate. The display & control unit consisted of frame size controller and display panel which shows top tube length(485~663mm), head tube length(85~243mm), seat tube length(481~671mm), and seat tube angle($62.7{\sim}76.4^{\circ}$). The range of frame size control for developed electric riding machine did not have difference compared to traditional commercial systems, but quantitative and precise control with 0.1 mm length and $0.1^{\circ}$ angle was possible through digital measurement. Unlike traditional commercial systems, frame size control was possible during riding through motor driven method, thus fitting duration decreased. It is necessary for further improvement to have feedback from users. It is believed that developed electric riding machine can help to develop domestic fitting system.

Keywords

References

  1. Bini, R. R.(2011). Effects of saddle height on pedal force effectiveness : 5th Asia Pacific Congress on Sports Technology. Procedia Engineering, 5, 51-55.
  2. Bohlmann, J. T.(1981). Injuries in competitive cycling. Physician Sports Medicine, 9(5), 117-124. https://doi.org/10.1177/036354658100900209
  3. Chung, K. R., Hyeong, J. H., Kim, S. Y., Senner, V., & Hoechtl, F.(2011). The effect of seat tube angle on the metabolic cost during cycling at low intensity workload. Procedia Engineering, 13, 334-337. https://doi.org/10.1016/j.proeng.2011.05.094
  4. De Vey Mestdagh, K.(1998). Personal perspective: in search of an optimum cycling posture. Applied Ergonomics, 29(5), 325-334. https://doi.org/10.1016/S0003-6870(97)00080-X
  5. Dorel, S., Couturier, A., & Hug, F.(2009). Influence of different racing positions on mechanical and electromyographic patterns during pedalling. Scandinavian Journal of Medicine & Science in Sports, 19, 44-54.
  6. Gregor, R. J., Broker, J. P., & Ryan, M. M.(1991). The biomechanics of cycling. Exercise and Sport Sciences Reviews, 19(1), 127-170.
  7. Hah, C. K., Jang, Y. K., Ki, J. S., & Kim, S. S.(2010). Cyclists' posture Factors affecting pedaling rate in cycle. Journal of Korea Safety Management & Science, 12(4), 81-86.
  8. Hamley, E. J., & Thomas, V.(1967). Physiological and postural factors in calibration of the bicycle ergometer. Journal of Physiology, 191(2), 5-56.
  9. Holmes, J. C., Pruitt, A. L., & Whalen, N. J.(1994). Lower extremity overuse in bicycling. Clinics in Sports Medicine, 13, 187-205.
  10. Marc, R. S., David, W., Steven, C., & Brian, J. S.(2005). Road bicycle fit. Clinical Journal of Sport Medicine, 15, 271-276. https://doi.org/10.1097/01.jsm.0000171255.70156.da
  11. Oh, H. S., Choi, J. S., Kang, D. W., Seo, J. W., Bae, J. H., & Tack, G. R.(2012). Simple camera-based evaluation system for lower limb alignment during pedalling. Korean Journal of Sport Biomechanics, 22(1), 123-129. https://doi.org/10.5103/KJSB.2012.22.1.123
  12. Peveler, W. W., & Green, J. M.(2011). Effects of saddle height on economy and anaerobic power in well-trained cyclists. Journal of Strength and Conditioning Research, 25(3), 629-633. https://doi.org/10.1519/JSC.0b013e3181d09e60
  13. Ryu, C. Y., Choi, S. J., Park, J. J., & Kang, S. Y.(2001). A kinematical analysis of the leg movements according to cyclists' knee joint angles. Korean Journal of Sport Biomechanics, 11(2), 259-275.
  14. Umberger, B. R., Scheuchenzuber, H. J., & Manos, T. M.(1998). Differences in power output during cycling at different seat tube angles. Journal of Human Movement Studies, 35, 21-36.
  15. Webster, J. M., West, A., Conway, P., & Cain, M.(2011). Development of an automated cycle ergometer. Procedia Engineering, 13(1), 69-74. https://doi.org/10.1016/j.proeng.2011.05.053

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