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KMID : 1137820220430030177
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의공학회지
2022 Volume.43 No. 3 p.177 ~ p.184
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Effect of IMU Sensor Based Trunk Stabilization Training on Muscle Activity and Thickness with Non-specific Chronic Low Back Pain
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Kim Sang-Hee
Lee Hyun-Ju
Tae Ki-Sik
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Abstract
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The purpose of this study was to present the IMU sensor based trunk stabilization exercise and to eval- uate the changes in the muscle activity and thickness with non-specific low back pain patients (N=30). They were classified into two groups; lumbar stabilization exercise using IMU sensor (ILS), (n1=20) and general lumbar sta- bilization exercise (GLS), (n2=10). By comparing the difference between pre and post intervention via trunk muscle activity and muscle thickness, the significant differences were identified. Muscle activity was measured on external oblique (EO), internal oblique (IO), and multifidus (MF) by using surface electromyography (sEMG). Muslce thick- ness was measured on external oblique, internal oblique, transverse abdominis (TrA), and multifidus (MF) by using ultrasonography. sEMG activity was recorded at right side-bridge position. Each group performed the proposed lum- bar stabilization exercise for 30 minutes a day, 5 times a week for 4 weeks. Trunk muscle activity was observed with a significant increase in the IO of ILS (p<.05) and a decrease in the MF of GLS (p<.05). Trunk muscle thickness was significantly increased in left EO and both IO of GLS (p<.05), and also significant increased right EO, both IO, both TrA, and both MF of the ILS (p<.05). In the future, a convergence approach of rehabilitation and engineering is needed to select a sensor suitable for rehabilitation purposes, study the validity and reliability of data, and produce appropriate rehabilitation contents.
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KEYWORD
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Chronic low back pain, IMU sensor, Lumbar stabilization exercise, Muscle activity, Muscle thickness
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