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February 26, 2026Annals of Rehabilitation Medicine0 citationsOpen Access

Assessment of Back Muscle Activity Using High-Density Surface Electromyography in Patients With Degenerative Thoracolumbar Kyphosis: A Preliminary Study

YKYuki KurokawaYNYuichi NishikawaNYNoriaki Yokogawa

Key Points

  • To evaluate back muscle activity in patients with degenerative thoracolumbar kyphosis using high-density surface electromyography.
  • Analyzed muscle activity using high-density surface electromyography (HD-SEMG) in patients with degenerative thoracolumbar kyphosis (DTK).
  • Compared muscle activation during load-bearing tasks with and without orthotic support.
  • Assessed fatigue onset and neuromuscular efficiency based on HD-SEMG data.
  • Early fatigue onset was observed in patients with DTK, especially during tasks without orthotic support.
  • Muscle activation patterns were found to be unstable during load-bearing tasks.
  • Use of spinal orthoses improved muscle endurance and reduced variability in muscle recruitment.

Abstract

HD-SEMG revealed early fatigue onset and unstable muscle activation patterns in patients with DTK, particularly during load-bearing tasks performed without orthotic support. Orthosis used improved endurance and neuromuscular efficiency by reducing spatial and directional variability in muscle recruitment. These findings underscore the utility of HDSEMG for elucidating the neuromuscular pathophysiology of DTK and support the use of spinal orthoses as a conservative treatment approach.

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Cite This Study

Kurokawa et al. (2026) studied this question.

synapsesocial.com/papers/699fe24b95ddcd3a253e62c9https://doi.org/10.5535/arm.250126
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