체성감각 정보가 자세 조절 시 자유 모멘트에 미치는 영향

초록

The purpose of the study is to find the effect of somatosensory information on rotational movement on transversal plane(FM) during posture control. The participants were 12 healthy males. The task was to stand as stable as possible in a tandem stance for 30 seconds on firm/foam surface, with eyes closed, repeated 2 times. FM variability and COP ML variability were higher on foam surface than firm surface. Frequency analysis on FM revealed that reduced somatosensory increases the power of low(0-0.1Hz), middle(0.1-0.5Hz), and high(0.5-1Hz) frequency bands. The power of middle and high frequency bands of COP AP were increased by reduced somatosensory. The power of all three frequency bands of COP ML were increased by somatosensory reduction. FM showed low power in low frequency band, higher power in higher frequency. COP showed high power in low frequency, lower power in higher frequency. The result of the present study revealed the different characteristics between FM and COP. The study could be used as basic data for future studies with FM as a variable.

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