운동 전 적용된 지속초음파와 맥동초음파가 운동 유발성 근육 손상의 최대등척성근력과 관절가동범위에 미치는 효과

• Published in: 대한물리치료과학회지 Vol. 28; no. 2; pp. 19 - 29
• Main Authors: 김하늘, 전재근, 신성필, Kim, Ha Neul, Jeon, Jae Geun, Shin, Sung Phil
• Format: Journal Article
• Language: Korean
• Published: 대한물리치료과학회 01.09.2021
• Subjects: 물리치료학; Range of motion; Maximal voluntary isometric contraction; Exercise-induced muscle damage; Pulsed-ultrasound
• ISSN: 2733-6441; 2733-645X
• DOI: 10.26862/jkpts.2021.09.28.2.19

Background: The purpose of this study was to investigate the effects of pulsed-ultrasound intervention and continued-ultrasound on the MVIC (maximal voluntary isometric contraction) and active ROM (range of motion) recovery of before EIMD (exercise-induced muscle damage). Design: Randomized controlled trial. Methods: Thirty subjects who are student in their 20s at a university participated in this study, these subjects were assigned into three groups, a control group (n=10), experiment group I (n=10) and experiment group II (n=10). The subjects in experimental group were intervened by pulsed-ultrasound and continued-ultrasound, while ones on control group weren't by any intervention after induced EIMD. Results: First, In comparison of the MVIC, in the among group comparison, the MVIC of continued-ultrasound group was significantly larger than those of other groups (p<.005). Second, In the among group comparison, the active extension angle of continued-ultrasound group was significantly smaller than those of other groups (p<.005). Third, In the among group comparison, the active flexion angle of continued-ultrasound group was significantly lager than those of other groups (p<.05). Conclusion: The above results revealed that the continued-ultrasound intervention before an exercise had a significantly improve of muscle function after EIMD. Therefore we can consider the continued ultrasound as a considerable intervention method to prevent or reduce an exercise injury.