Kinematics Characteristic of Lower Extremity during Simulated Skiing Exercise

Hyo Taek Lee, Jae Ik Lee, Jung Il Seo, Heo Bo Seob, Choi Bo Kyung, Jung Sung Hee, Gyu Ah Kim, Bong Soo Kim, Yong Jae Kim

Abstract


We analyze the kinematic factors of sectional and total movements in healthy participants to providing group dependent information during simulated exercise. Participants in this study's experiment were 26 male adults, the elapsed times in each phase, the difference in the lower extremity angles, and muscle activity were computed through analysis of kinematic factors. We revealed that motions of the experts took shorter to perform than non-experts, and showed larger variation of lower limb joint angle in most events during simulated skiing. There were also significant group dependent differences in the peak and mean EMG values during simulated skiing. Referring to these results, such a non-expert's posture leads to enhance muscle activity to keep the lower body in balance. Non-experts should maintain appropriate ROM with lower-intensity exercise to improve muscle endurance initially, and it can be useful in providing preliminary data for future training and rehabilitation studies, as well as improvements in muscle strength.

Keywords


simulated skiing; ski simulator; lower extremity

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ISSN 1999-4168