The first dorsal interosseous muscle was injured by centrifugal contraction, and the same exercise was performed 4 weeks later to examine the changes in maximal voluntary muscle strength, IL-6, CK, and muscle pain. 2) The second exercise resulted in faster recovery of maximal muscle strength, less muscle pain, and less increase in IL-6 and CK, suggesting that it may reduce myofascial receptor stimulation. The second exercise resulted in faster recovery of maximal muscle strength, less muscle pain, and less elevation of IL-6 and CK, suggesting that it may reduce myofascial receptor stimulation.