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KMID : 1012020210100010082
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Physical Therapy Rehabilitation Science
2021 Volume.10 No. 1 p.82 ~ p.89
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Muscle Activity Based on Real-time Visual Feedback Training Methods by Rehabilitative Ultrasound Image in Elderly and Relationship between Heckmatt Scale, Muscle Thickness and Tone : A Pilot Study
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Shin Jang-Hoon
Lee Wan-Hee
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Abstract
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Purpose: This study is to investigate the muscle activity based on real-time visual feedback training methods by rehabilitative ultrasound image in elderly and correlation between Heckmatt scale grade, muscle tone and thickness.
Design: Cross-sectional study: Pilot study
Methods: 6 elderly participated in the study with 2 conditions. Under the condition of rehabilitation ultrasound imaging equipment, all subjects performed voluntary maximal muscle contraction of the quadriceps 3 times using visual feedback based on Rehabilitative Ultrasound Imaging 1.0 (RUSI 1.0). Under the condition of only ultrasound images, all subjects performed voluntary maximal muscle contraction of the quadriceps 3 times using ultrasound image-based visual feedback. The muscle thickness and tone of the quadriceps were measured and the grades were classified by Heckmatt scale and all variables were comparative analyzed.
Results: Heckmatt scale grade showed a negative correlation with muscle thickness at relaxation (p<0.05), and a negative correlation with the difference value obtained by subtracting muscle thickness at relaxation from muscle thickness at contraction in ultrasound image condition (p<0.05). The muscle tone during relaxation showed a negative correlation with the muscle thickness during relaxation (p<0.05).
Conclusion: In the case of voluntary maximum muscle contraction of the quadriceps muscle in the elderly, it can be seen that the muscle thickness is getting larger when the RUSI 1.0-based visual feedback is provided than with only ultrasound image provided. And the lower Heckmatt scale grade is, the thicker the muscle is, and the lower the muscle tone is.
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KEYWORD
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Heckmatt scale, Quadriceps muscle, Ultrasonography, Visual feedback, Aged, Echogenicity
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