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Exercise training improves aerobic capacity and skeletal muscle function in heart transplant recipients


[ 作者:Admin     来源:运动解剖学课程网站      点击数:     更新时间:2010/10/27     文章录入:Admin ]



Am J Transplant. 2009 Apr;9(4):734-9.

Exercise training improves aerobic capacity and skeletal muscle function in heart transplant recipients

Haykowsky M, Taylor D, Kim D, Tymchak W.

Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada. mark.haykowsky@ualberta.ca

      The aim of this study was to examine the effects of 12 weeks of supervised aerobic and strength training (SET) versus no-training (NT) on peak aerobic power (VO2peak), submaximal exercise left ventricular (LV) systolic function, peripheral vascular function, lean tissue mass and maximal strength in clinically stable heart transplant recipients (HTR). Forty-three HTR were randomly assigned to 12 weeks of SET (n = 22; age: 57 +/- 10 years; time posttransplant: 5.4 +/- 4.9 years) or NT (n = 21; age: 59 +/- 11 years; time posttransplant: 4.4 +/- 3.3 years). The change in VO2peak (3.11 mL/kg/min, 95% CI: 1.2-5.0 mL/kg/min), leg and total lean tissue mass (0.78 kg, 95% CI: 0.31-1.3 kg and 1.34 kg, 95% CI: 0.34-2.3 kg, respectively), chest-press (10.4 kg, 95% CI: 5.2-15.5 kg) and leg-press strength (34.7 kg, 95% CI: 3.7-65.6 kg) were significantly higher after SET versus NT. No significant change was found for submaximal exercise LV systolic function or brachial artery endothelial-dependent or -independent vasodilation. Supervised exercise training is an effective intervention to improve VO2peak, lean tissue mass and muscle strength in HTR. This training regimen did not improve exercise LV systolic function or brachial artery endothelial function.