Ultrastructure of Myofascial Trigger Points of Skeletal Muscles of Rats after Photobiostimulation with Low-Intensity Red Light

Bull Exp Biol Med. 2023 Sep;175(5):711-713. doi: 10.1007/s10517-023-05931-x. Epub 2023 Oct 20.

Abstract

The effectiveness of low-intensity red light on myofascial trigger points in skeletal muscle of mature rats was evaluated by electron microscopy and high-resolution respirometry. The revealed changes in mitochondrial ultrastructure and activity of the respiratory chain enzymes indicate the development of hypoxia in the simulation area. Under the influence of low-intensity red light on myofascial trigger points, a decrease in the number of destructively altered muscle fibers and stimulation of mitochondrial respiration were found. These findings indicate intracellular regeneration and the stimulating effect of low-intensity red light on plastic processes.

Keywords: myofascial trigger points; photobiostimulation; skeletal muscle tissue.

MeSH terms

  • Animals
  • Mitochondria
  • Muscle Fibers, Skeletal
  • Muscle, Skeletal
  • Myofascial Pain Syndromes*
  • Rats
  • Trigger Points*