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KMID : 1211620210160040125
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Journal of the Korean Society of Physical Medicine
2021 Volume.16 No. 4 p.125 ~ p.137
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Effect of Sensory Feedback Type on Correct Sitting Posture Learning on Healthy Adults
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Shin Ho-Jin
Kim Sung-Hyeon
Cho Hwi-Young
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Abstract
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PURPOSE: The growing number of people exposed to a static sitting posture has resulted in an increase in people with a poor posture out of the optimally aligned posture because of the low awareness of a correct sitting posture. Learning the correct sitting posture by applying sensory feedback is essential because a poor posture has negative consequences for the spine. Therefore, this study examined the effects of the sensory feedback types on learning correct sitting posture.
METHODS: Thirty-six healthy adult males were assigned to a visual feedback group, a tactile feedback group, and a visuotactile feedback group to learn the correct sitting posture by applying sensory feedback. The spine angle, muscle activity, and muscle thickness were measured in the sitting position using retro-reflexive markers, electromyography, and ultrasound immediately after, five minutes, and 10 minutes after intervention.
RESULTS: The intervention time was significantly shorter in the visuotactile feedback group than the visual feedback group (P < .05). Compared to the pre-intervention, the repositioning error angles of the thoracic and lumbar vertebrae of all groups were reduced significantly immediately after intervention and after five minutes. After 10 minutes, there was a significant difference in the thoracic and lumbar repositioning error angles of the tactile feedback group and the visuotactile feedback group (P < .05). No significant difference was noted at any time compared to the pre-intervention in all groups (P > .05).
CONCLUSION: The use of tactile and visuotactile feedback in intervention to correct the sitting posture is proposed.
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KEYWORD
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Motor learning, Multimodal feedback, Sitting posture, Tactile feedback, Visual feedback
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