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KMID : 1206220200270030056
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Journal of Korean Academy of Physical Therapy Science
2020 Volume.27 No. 3 p.56 ~ p.66
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The effects of pulsed ultrasound and continued ultrasound intervention before an exercise on PPT, CK and LDH of EIMD
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Kim Ha-Neul
Jeon Jae-Geun
Shin Sung-Phil
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Abstract
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Background: The purpose of this study was to investigate the effects of pulsed-ultrasound intervention and continued-ultrasound on the PPT (pressure pain threshold), CK (creatine kinase) and LDH (lactate dehydrogenase) 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 groupⅠ (n=10), and experiment groupⅡ (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 the comparison of the PPT, there were significant variations with the lapse the time in three groups (p<.001) and there was a significant interaction of time and group (p<.001). In the among group comparison, the PPT of experimental group Ⅱ was significantly larger than those of other groups (p<.01). Second, In the comparison of the CK, there were significant variations with the lapse the time in three groups (p<.001) and there was a significant interaction of time and group (p<.001). In the among group comparison, the CK of experimental group Ⅱ was significantly smaller than those of other groups (p<.001). Third, In the comparison of the LDH, there were significant variations with the lapse the time in three groups (p<.001) and there was a significant interaction of time and group (p<.001). In the among group comparison, the LDH of experimental group Ⅱ was significantly smaller than those of other groups (p<.001).
Conclusion: The above results revealed that the continued-ultrasound intervention before an exercise had a positive effect of muscle function after EIMD. Therefore we can consider the continued ultrasound as a considerable intervention method to prevent or reduce an exercise injury.
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KEYWORD
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Creatine kinase, Exercise-induced muscle damage, Lactate dehydrogenase, Pressure pain threshold, Ultrasound
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