| Summary: | 碩士 === 國立中興大學 === 生物產業機電工程學系所 === 99 === There are two positions, seated and standing, used in the training courses for indoor stationary bicycle. Less literature showed biomechanics parameters for both positions. The aim of this study is to use biomechanics method to analyze the parameters to observe the joints’ kinematic and kinetic in cycling, within both standing and seated positions.
The definition used in this research is based on the Cycle Reebok Training System and categorized to four cases for the stationary bicycle training, fast cadence light workload seated position, slow cadence heavy workload seated position, fast cadence light workload standing position, and slow cadence heavy workload standing position, respectively. High-speed cameras associated with force plate measuring system were used to collect dynamic data of all subjects in the research. They were tested within four cases sequentially, three sets of data for each case. Based on various cases tested for each subject, the analyses of force, moment, joint motion angle, and muscle force were done for lower limb’s joints.
The results showed that the joint motion angle is wider in standing position, and the minimal joint flexion angle occurs later in the sagittal plane. From the joint moment diagram, standing position provided stronger training effect for both hip and knee joints and be able to offer longer affect time for the flexor muscle. Standing position showed bigger joint force and force variation than seated position. The maximum force occurring time for standing position was later as well.
In conclusion, standing position would offer better and stronger training for major muscle in the lower limbs. The result would be widely applied in cycling training.
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