Development of Saddle Height Control System for Cycle Road Racer based on SEMG Signals of the Leg Muscles

  • TOKUYASU Tatsushi
    Department of Information and Systems Engineering, Faculty of Information Engineering, Fukuoka Institute of Technology
  • MATSUMOTO Shimpei
    Department of Information Systems and Management, Faculty of Applied Information Science, Hiroshima Institute of Technology

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The saddle height of a cycle road racer influences the competitive performance of the cyclist. Cyclists can adjust the saddle height carefully according to their kinesthetic sense while riding a bicycle. The saddle height control system we have developed consists of a saddle height control device and a measurement instrument for a surface electromyogram (SEMG). The evaluation criteria for the saddle height based on SEMG signals, which are measured from the leg muscles during pedaling exercise, are established. Our experiments indicate that the saddle height was controlled at a relatively low level regardless of the cycling level of the subjects. The effects of muscle fatigue due to pedaling exercise are suspected to affect these experimental results.

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