The acute effect of stretching on eccentrically-damaged muscle: analysis of differences between hold-relax and static stretching

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  • 遅発性筋痛を生じた筋に対するストレッチング介入の効果 −スタティックストレッチングとホールドリラックスストレッチングの比較−
  • 遅発性筋痛を生じた筋に対するストレッチング介入の効果 : スタティックストレッチングとホールドリラックスストレッチングの比較
  • チハツセイキンツウ オ ショウジタ スジ ニ タイスル ストレッチング カイニュウ ノ コウカ : スタティックストレッチング ト ホールドリラックスストレッチング ノ ヒカク

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Abstract

<p></p><p>It is well known that eccentric exercise induces muscle damage that is characterized by a prolonged decrease in muscle strength and range of motion, development of delayed onset muscle soreness, and swelling. Therefore, the present study aimed to compare the acute effects of hold-relax stretching (HRS) with those of static stretching (SS) on muscle strength and soreness. The participants comprised 28 male volunteers randomly assigned to either the HRS group (N = 14) or the SS group (N = 14). Initially, the participants of both groups performed 60 maximal eccentric contractions of the knee extensors. Two and four days after this exercise, each group performed either HRS or SS for 60 s at a time and repeated them six times for a total of 360 s. Muscle strength and soreness during stretching and contraction were measured before and immediately after HRS and SS. The results showed that the muscle soreness observed after eccentric contraction significantly decreased immediately after both HRS and SS were performed two and four days later. In addition, there were no significant changes in muscle strength immediately after both HRS and SS were performed two and four days later. The rate of change in muscle soreness after HRS was significantly higher than that after SS two days post eccentric contractions. These results suggest that while both HRS and SS can effectively decrease muscle soreness, the effect of HRS on muscle soreness was larger than the effect of SS.</p>

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