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Rehabilitation Practice and Science

Translated Title

肱二頭肌不同部位於離心收縮後壓痛閾值、壓痛耐受度及組織順應性之變化

Abstract

Delayed onset muscle soreness (DOMS) refers to skeletal muscle pain that follows strenuous and unaccustomed physical activity. The intensity of discomfort peaks at 24 to 48 hours, and subsides within 5 to 7 days post-exercise. It appears that DOMS occurs most frequently following unaccustomed eccentric exercise. However, it is not clear whether sensitivity to pain is uniform over the surface of the muscle, or whether some locations become more sensitive following eccentric exercise. The purpose of this study was to evaluate the effect of DOMS at various sites of muscle following a bout of eccentric exercise.A total of 25 subjects (mean age: 24.7 ± 2.8 years) were recruited for this study. Muscle fatigue and DOMS were induced in the dominant biceps brachii by resisted eccentric muscle contractions. The visual analog pain scale results, pressure pain threshold, pressure pain tolerance and tissue compliance were evaluated at different sites on the biceps brachii, including the proximal tendon-muscle junction, motor point, distal tendon-muscle junction, and distal tendon-bone junction. All the parameters were recorded prior to exercise, immediately after, and 2, 3, 4, and 5 days after exercise. Two-way ANOVA with repeated measurements was used to analyze any significant difference between time and locations groups. It was found that peak VAS and the lowest pressure pain threshold and pressure pain tolerance appeared 2 days post-exercise. Significant differences in VAS, pressure pain threshold and pressure pain tolerance were found between time groups, but not between location groups. Tissue compliance was highest 2 days after exercise. The results indicate that DOMS has a similar effect on several areas of the muscle, such as at muscle-tendon-bone junctions.

Language

Traditional Chinese

First Page

169

Last Page

177

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