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The immediate effect of harmonic therapy on peripheral blood flow in young males: A cross-over pilot study

Journal: International Journal of Osteopathic Medicine Date: 2021/12, 42Pages: 51-55. doi: Subito , type of study: clinical trial

Full text    (https://www.sciencedirect.com/science/article/pii/S1746068921000882)

Keywords:

blood flow [20]
clinical trial [612]
harmonic therapy [1]
male [479]
OMT [2951]
osteopathic manipulative treatment [2973]
pilot study [104]

Abstract:

Background There is limited evidence in the literature regarding the effects of harmonic therapy on peripheral blood circulation. Objective This pilot study aims to examine the immediate effect of passive and active assistive harmonic therapy on peripheral blood flow volume in healthy young males. Design Cross-over pilot study using quantitative data. Setting This study was conducted in a university hospital. Methods Three different interventions (passive range of motion exercise, active assistive harmonic therapy, and passive harmonic therapy) were applied to participants' dominant upper extremity shoulder joint. Interventions were performed only 1 session and 10 min at one-week intervals. Primary outcome measures Superficial palmar branch of the radial artery blood flow volume was evaluated with color Doppler ultrasound before and immediately after the intervention. Participants Fifteen young males (mean age:22.13 ± 1.68 years, range:20–25) participated in the study. Results Blood flow volume significantly increased with active assistive harmonic therapy (p = 0.001, d = 1.10) and passive harmonic therapy (p < 0.001, d = 1.44)) interventions. There was no change in blood flow volume with passive range of motion intervention (p = 0.28, d = 0.29). Active assistive harmonic therapy and passive harmonic therapy intervention significantly increased blood flow volume compared to passive range of motion intervention (p = 0.001, η2 = 0.28). Conclusions Both active assistive and passive harmonic therapy interventions produced an immediate increase in blood flow volume however, the clinical importance of these findings requires further investigation.


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