論文

国際誌
2009年6月

Effects of different duration contractions on elasticity, blood volume, and oxygen saturation of human tendon in vivo.

European journal of applied physiology
  • Keitaro Kubo
  • ,
  • Toshihiro Ikebukuro
  • ,
  • Katsutoshi Yaeshima
  • ,
  • Hiroaki Kanehisa

106
3
開始ページ
445
終了ページ
55
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00421-009-1037-2

The present study aimed to investigate changes in elasticity, blood volume, and oxygen saturation of tendon caused by repeat contractions of different durations. Eight male subjects performed endurance tests, which consisted of isometric plantar flexion with two different durations: a shorter contraction (SC) and a longer contraction (LC). During endurance tests and a recovery period, we measured the total hemoglobin (THb) and oxygen saturation (StO(2)) of the medial gastrocnemius muscle and Achilles tendon using near infrared spectroscopy and red laser lights. In addition, elongation of the Achilles tendon during the endurance test was measured via ultrasonography. Compared to the resting level, the THb and StO(2) of the tendon increased significantly after SC, but not after LC. On the other hand, Achilles tendon became more compliant after LC, but not after SC. These results suggested that duration of contraction affected not only elasticity, but also blood volume and oxygen saturation of tendons.

リンク情報
DOI
https://doi.org/10.1007/s00421-009-1037-2
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/19306016
ID情報
  • DOI : 10.1007/s00421-009-1037-2
  • PubMed ID : 19306016

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