Effect of ski simulator training on kinematic and muscle activation of the
lower extremities |
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Authors: | Jeheon Moon Dohoon Koo Kitae Kim Insik Shin Hyeyoung Kim Jinhae Kim |
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Institution: | 1) Department of Physical Education, Seoul National University, Republic of Korea;2) Division of Liberal Arts and Science, Korea National Sport University, Republic of Korea;3) Department of Physical Education, Korea National Sport University, Republic of Korea |
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Abstract: | Purpose] This study aimed to verify the effectiveness of an augmented reality-based ski
simulator through analyzing the changes in movement patterns as well as the engagement of
major muscles of the lower body. Subjects] Seven subjects participated in the study. All
were national team-level athletes studying at “K” Sports University in Korea who exhibited
comparable performance levels and had no record of injuries in the preceding 6 months (Age
23.4 ± 3.8 years; Height 172.6 ± 12.1 cm; Weight 72.3 ± 16.2 kg; Experience 12.3 ±
4.8 years). Methods] A reality-based ski simulator developed by a Korean manufacturer was
used for the study. Three digital video cameras and a wireless electromyography system
were used to perform 3-dimensional motion analysis and measure muscle activation level.
Results] Left hip angulation was found to increase as the frequency of the turns
increased. Electromyography data revealed that the activation level of the quadriceps
group’s extension muscles and the biceps femoris group’s flexing muscles had a crossing
pattern. Conclusion] Sustained training using an augmented reality-based ski simulator
resulted in movements that extended the lower body joints, which is thought to contribute
to increasing muscle fatigue.Key words: Ski simulator, Kinematic, EMG |
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