Effect of the Amount of Compression Stimulation on Muscle Stiffness and Muscle Output

• Published in: Rigaku ryoho kagaku Vol. 35; no. 6; pp. 831 - 835
• Main Authors: AINO, Masaki, HARUGUCHI, Koutaro, AINO, Mayumi, FUKURA, Tsuyoshi, NAKANO, Koujiro, HASHIMURA, Shun, INOMOTO, Atsushi, YOKOSE, Tetsuro
• Format: Journal Article
• Language: English; Japanese
• Published: Tokyo The Society of Physical Therapy Science 2020; Japan Science and Technology Agency
• Subjects: compression stimulation; muscle output; muscle stiffness
• ISSN: 1341-1667; 2434-2807
• DOI: 10.1589/rika.35.831

[Purpose] The purpose of this study was to examine the effect of the amount of compression stimulation on muscle stiffness of the rectus femoris and maximum isometric knee extension strength. [Participants and Methods] The subjects were 30 men with no prior history of medical issues concerning the lower limbs and spinal column. Muscle stiffness, using an ultrasonic device, maximum isometric knee extension strength, and pain were measured before and after 20, 60, and 90 mmHg compression stimulation. There was a significant difference in muscle stiffness before and after 20 mmHg compression stimulation. [Results] Muscle output tended to improve after 20 mmHg compression stimulation compared to the result after 90 mmHg compression stimulation. Pain was significantly higher after 90 mmHg pressure stimulation. [Conclusion] Pressure stimulation of 20 mmHg on the rectus femoris is painless, and is also thought to contribute to the improvement of muscle flexibility and muscle output.