THE EFFECTS OF MASSAGE ON DELAYED ONSET MUSCLE SORENESS, FORCE PRODUCTION AND PHYSIOLOGICAL PARAMETERS 397

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The purpose of this study was to assess the effects of massage, performed two hours after a fatiguing bout of exercise, on several phyiological parameters. Twenty-four males, aged 20-40, were tested for: muscle soreness using a modified Clarkson scale; active knee knee extension; isokinetic concentric knee flexion torque at 30°/sec; and blood levels of creatine kinase (CK), lactate dehydrogenase (LD) and alanine aminotransferase (ALT). Following a baseline test, all subjects performed a bout of eccentric knee extension till fatigue. Subjects were randomly assigned to one of three groups; a 30 minute massage group (30), a 15 minute massage group (15) and a group which received a placebo treatment. Post treatment assessments were made at 48, 72 and 96 hours, and the data were analyzed using a MANOVA. Although there was a significant increased in the blood chemicals following the activity, and a reduction in active knee extension and strength, there was no statistical difference between the groups. Changes were greatest at 72 hours post exercise. Torque values decreased from an average of 159.6ft/lbs(±13.2) to 146.1ft/lbs (±19.9), while CK values increased from an average of 122.7±137.0μ/l to 1964.8±1864.2μ/l. Similarly, ALT increased from a average of 16±5 to 62±52μ/l and LD increased from 106.2±36 to 402.6±401. Although there were no statistically significant differences, there were some trends which suggested that massage had some benefits regarding range of motion and strength.
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