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January 2025

Effects of 1 Hz Low-Frequency Repetitive Transcranial Magnetic Stimulation Combined with Scapulohumeral Training on Upper Limb Functionin Stroke Patients

Authors: Shin-Kyu Park 1, Byung-Il Yang 2, Sung-Ryong Ma 3

Affiliations:

  1. Department of Occupational Therapy, Bobath Memorial Hospital, Seongnam 13552, Republic of Korea
  2. Department of Physical Therapy, Sangji University, Wonju 26339, Republic of Korea
  3. Department of Occupational Therapy, Chosun University, Gwangju 61452, Republic of Korea

Journal: Journal of Magnetics - December 2024, Volume 29, Issue 4, Pages 543-549

This study investigates the effects of scapulohumeral training combined with 1 Hz low-frequency repetitive transcranial magnetic stimulation (LF-rTMS) on muscle activation, muscle tone, and upper limb function in patients with stroke.

Twenty stroke patients were divided into an experimental group that received LF-rTMS combined with scapulohumeral training and a control group that received sham-rTMS combined with scapulohumeral training. Intervention was provided five times a week for 50 min over six weeks. Muscle activation was assessed using electromyography, muscle tone was measured through MyotonPRO, and the upper-limb function was evaluated by manual function test (MFT).

Electromyography and MyotonPRO results show statistically significant differences in the upper trapezius and anterior deltoid (p<0.05) and in the difference in the upper trapezius and biceps brachii (p<0.05), respectively, between the two groups. No statistically significant differences were observed in the MFT assessment (p>0.05).

The 1 Hz LF-rTMS has a positive effect on upper limb muscle activation and muscle tone in patients with stroke. Through this, It is concluded that 1Hz low-frequency rTMS has a positive effect on improving upper limb muscle activation and muscle tone in stroke patients.

 

Keywords: 1 Hz low-frequency repetitive transcranial magnetic stimulation, scapulohumeral-rhythm, stroke, upper limb muscle activation, muscle tone

This study analyzed the effects of scapulohumeral training combined with LF-rTMS on muscle activation, muscle tone, and upper limb function in patients with stroke. The results showed that LF-rTMS combined with scapulohumeral training had a positive effect on upper limb muscle activation and tone regulation; however, no significant difference was observed in upper limb function assessment. These findings suggest that combining LF-rTMS with scapulohumeral training may be an effective intervention for upper limb functional recovery in patients with stroke. However, a more comprehensive approach is required to improve upper limb function, emphasizing the importance of interventions that consider postural control.

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