Blood flow and arterial vessel diameter change during graded handgrip exercise in dominant and non-dominant forearms of tennis players

Atsuko Kagaya, Fumiko Ohmori, Shizuyo Okuyama, Yoshiho Muraoka, Kohei Sato

研究成果: Conference contribution

11 被引用数 (Scopus)

抄録

The training effect on exercise-induced maximal blood flow remains unclear. The purpose of this study was to clarify the difference of exerciseinduced blood flow, blood flow velocity and vessel diameter of brachial artery in dominant and non-dominant forearms of tennis players during graded handgrip exercise. Ten female tennis players aged 20.1 ∼ 0.1 years. (mean ∼ SD) performed 30-s static handgrip exercise in the supine position with either the dominant or non-dominant hand by increasing load at 30-s intervals until exhaustion. Brachial arterial blood flow velocity (Doppler ultrasound method) did not differ between both limbs, whereas the vessel diameter (2-D method) was significantly larger in the dominant limb during diastole both at baseline (p < 0.01) and after exercise (p < 0.05), but no difference was found during systole. As a result, the blood flow was significantly higher (p < 0.05) in the dominant limb during post-exercise condition. Muscle thickness of the forearm muscles and maximal handgrip strengthwere significantly higher in the dominant limb. Thus, the effect of training on exercise-induced blood flow specific to the dominant limb was confirmed during post-exercise due to the enlarged vessel diameter during diastole of cardiac cycle. The dimensional change in the vasculature specific to the dominant side will be included in the training effects associated with the dimensional muscular changes in the dominant forearm.

本文言語English
ホスト出版物のタイトルOxygen Transport to Tissue XXXI
編集者Eiji Takahashi, Duane Bruley
ページ365-370
ページ数6
DOI
出版ステータスPublished - 2010 12 1
外部発表はい

出版物シリーズ

名前Advances in Experimental Medicine and Biology
662
ISSN(印刷版)0065-2598

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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