論文

国際誌
2009年2月

Effects of static and dynamic training on the stiffness and blood volume of tendon in vivo.

Journal of applied physiology (Bethesda, Md. : 1985)
  • Keitaro Kubo
  • ,
  • Toshihiro Ikebukuro
  • ,
  • Katsutoshi Yaeshima
  • ,
  • Hideaki Yata
  • ,
  • Naoya Tsunoda
  • ,
  • Hiroaki Kanehisa

106
2
開始ページ
412
終了ページ
7
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1152/japplphysiol.91381.2008

The purpose of this study was to investigate the effects of static and dynamic training on the stiffness and blood volume of the human tendon in vivo. Ten subjects completed 12 wk (4 days/wk) of a unilateral training program for knee extensors. They performed static training on one side [ST; 70% of maximum voluntary contraction (MVC)] and dynamic training on the other side (DT; 80% of one repetition maximum). Before and after training, MVC, neural activation level (by interpolated twitch), muscle volume (by magnetic resonance imaging), stiffness of tendon-aponeurosis complex and patella tendon (by ultrasonography), and blood volume of patella tendon (by red laser lights) were measured. Both protocols significantly increased MVC (49% for ST, 32% for DT; both P < 0.001), neural activation level (9.5% for ST, 7.6% for DT; both P < 0.01), and muscle volume (4.5% for ST, 5.6% for DT; both P < 0.01). The stiffness of tendon-aponeurosis complex increased significantly after ST (55%; P = 0.003) and DT (30%; P = 0.033), while the stiffness of patella tendon increased significantly after ST (83%; P < 0.001), but not for DT (P = 0.110). The blood volume of patella tendon increased significantly after DT (47%; P = 0.016), but not for ST (P = 0.205). These results implied that the changes in the blood volume of tendon would be related to differences in the effects of resistance training on the tendon properties.

リンク情報
DOI
https://doi.org/10.1152/japplphysiol.91381.2008
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/19112156
ID情報
  • DOI : 10.1152/japplphysiol.91381.2008
  • PubMed ID : 19112156

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