Chinese Journal of Rehabilitation Theory and Practice ›› 2024, Vol. 30 ›› Issue (12): 1452-1460.doi: 10.3969/j.issn.1006-9771.2024.12.011

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Effect of deep muscle stimulation on muscle structure and function in children with spastic cerebral palsy

LIANG Yanhua1,2, ZHANG Qi1,2(), HU Xiaoshi1,2, LI Xiaosong1,2, YUE Qing1,2, ZHOU Tiantian1,2, LI Sijia1,2, FENG Amei1,2   

  1. 1. Capital Medical University School of Rehabilitation Medicine, Beijing 100068, China
    2. Department of Paediatric Physical Therapy, Beijing Bo'ai Hospital, China Rehabilitation Research Center, Beijing 100068, China
  • Received:2024-08-05 Revised:2024-11-19 Published:2024-12-25 Online:2024-12-30
  • Contact: ZHANG Qi E-mail:13501320729@163.com
  • Supported by:
    China Rehabilitation Research Center Youth Fund(2021zx-Q10)

Abstract:

Objective To observe the effect of deep muscle stimulation on muscle structure and function in children with spastic cerebral palsy.

Methods From January, 2023 to March, 2024, 30 children with spastic cerebral palsy in Beijing Bo'ai Hospital were randomly divided into control group (n = 15) and intervention group (n = 15). Both groups received conventional rehabilitation therapy, while the intervention group added deep muscle stimulation, for four weeks. Before and after training, the gastrocnemius muscle was examined by ultrasound diagnosis system in two aspects: transverse incision and longitudinal incision. Indicators included fascicle length, muscular thickness, cross sectional area and pennation angle. The modified Ashworth Scale (MAS) was used to assess the muscle tension of the lower extremity of the affected side. The standing, walking, running and jumping function were evaluated by Gross Motor Function Measure (GMFM) D and E areas.

Results After training, the fascicule length and pennation angle improved significantly in both groups (|t| > 6.329, P < 0.001), and they were better in the intervention group than in the control group (|t| > 2.347, P < 0.05); the scores of MAS decreased in both groups (t > 2.432, P < 0.05), and were better in the intervention group than in the control group (t = 2.140, P < 0.05); the scores of GMFM D and E areas significantly decreased in both groups (|t| > 8.473, P < 0.001), and were better in the intervention group than in the control group (|t| > 2.191, P < 0.05).

Conclusion Deep muscle stimulation could improve the fascicule length and pennation angle, and improve the spasticity and motor function of lower extremities in children with spastic cerebral palsy.

Key words: cerebral palsy, deep muscle stimulation, spasm, muscle structure

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