8주간의 미세진동 자가근막이완이 마라톤 동호인의 통증척도, 균형능력 및 기능적 움직임에 미치는 영향

Abstract

This study aimed to investigate the effects of two recovery interventions micro-vibration self-myofascial release (SMR) and static stretching on ankle joint range of motion (ROM), pain scale, and physical fitness parameters in amateur marathon runners. Forty male amateur marathon runners aged 20 to 30 years, residing in S City, were randomly assigned to either the micro-vibration self-myofascial release group, MG (MG, n = 20) or the static stretching group (SG, n = 20). Mean and standard deviation (SD) were calculated for body composition, ankle joint ROM, pain scale, and physical fitness parameters. The Kolmogorov-Smirnov test was used to assess data normality. A two-way repeated measures ANOVA was conducted to analyze the interaction effects of time (preand post-intervention) and group (MG vs. SG). Both groups showed significant improvements in ankle dorsiflexion and plantar flexion ROM and significant reductions in pain, as measured by the visual analog scale (VAS). Notably, the MG exhibited significant improvements in both dynamic and static balance after the intervention. While both groups improved in power and knee strength, a significant increase in ankle strength was observed only in the MG group. Functional movement screening (FMS) scores also tended to improve in both groups. These findings suggest that micro-vibration SMR may be an effective recovery strategy, particularly for enhancing balance and functional movement, thereby contributing to performance improvement and injury prevention in endurance athletes.