J Korean Phys Ther.  2020 Aug;32(4):245-249. 10.18857/jkpt.2020.32.4.245.

Effect of Local Vibration on Triceps Surae Flexibility Compared to Static Stretching

Affiliations
  • 1Department of Physical Therapy, College of Health Science, Catholic University of Daegu, Daegu, Korea

Abstract

Purpose
This study examined the effects of local vibration using a massage gun on the triceps surae flexibility by measuring the ankle dorsiflexion range of motion (ROM) compared to static stretching in healthy adults.
Methods
Twenty healthy subjects were instructed in this study. They were allocated randomly to two groups: local vibration (LV) and static stretching (SS). The ankle dorsiflexion ROM was measured before and after the intervention in supine (open kinetic chain, OKC) and standing (closed kinetic chain, CKC). The LV group received local vibration using a massage gun for five minutes on their triceps surae, and the SS group stood on the Q board with a dorsiflexed ankle for five minutes. The ROM between pre- and post-intervention and the change in ROM between two groups were analyzed. A paired t-test was used to compare the ROM between pre- and post-intervention, while an independent t-test was used to compare the change in ROM between the two groups.
Results
Both groups showed a significant difference between pre- and post-intervention in the position of both the OKC and CKC. The change in ROM, however, was not significantly different between the two groups.
Conclusion
The application of local vibration using a massage gun for five minutes on the triceps surae could improve its flexibility as much as the application of static stretching. A massage gun for the application of a local vibration stimulus may be effective, simple, portable, and comfortable.

Keyword

Vibration; Ankle; Range of Motion; Muscle Stretching Exercise
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