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首页> 外文期刊>British journal of sports medicine >Decreased exercise blood pressure in older adults after exercise training: contributions of increased fitness and decreased fatness.
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Decreased exercise blood pressure in older adults after exercise training: contributions of increased fitness and decreased fatness.

机译：运动训练后老年人的运动血压降低：增加健身和减少脂肪的作用。

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OBJECTIVE: To describe the contribution of changes in fitness and fatness resulting from exercise training on changes in submaximal exercise blood pressure (BP) during treadmill testing. DESIGN AND SETTING: Prospective, randomised, controlled trial. PARTICIPANTS: Sedentary older adults (n = 115) with untreated prehypertension or mild hypertension. INTERVENTION: Six-month supervised aerobic and strength training. Main outcome measurement: Systolic BP (SBP) was assessed at rest and during each stage of a maximal graded exercise test (GXT) that determined Vo(2)peak. General and regional fatness was assessed by anthropometry, dual-energy x-ray absorptiometry and MRI. BP changes were calculated for each GXT stage, and multivariate regression models were used to describe the association of changes in exercise BP with changes in fitness and fatness. RESULTS: After training, exercisers versus controls had significantly increased Vo(2)peak and significantly lower measures of general and regional fatness. Also, stage-specific SBP was significantly lower at stage 3 (-9.4 vs -1.6 mm Hg, p = 0.03) and stage 4 (-7.9 vs -1.2 mm Hg, p = 0.03). Pooled regression analysis across all stages showed that exercisers had a 7.1 mm Hg reduction in SBP, but this reduction fell short of statistical significance (p = 0.12) compared with controls. A 1.0 ml/kg/min increase in Vo(2)peak and a 1.0 cm decrease in waist circumference independently predicted a 1.0 mm Hg decrease in exercise SBP (p = 0.04 and p = 0.001, respectively). CONCLUSIONS: Decreased exercise SBP was independently associated with decreased waist circumference, a marker of abdominal obesity and increased fitness. These findings suggest that exercise training improves multiple factors that have an independent influence on SBP.
机译：目的：描述在跑步机测试期间，运动训练所导致的健身和肥胖变化对最大运动血压（BP）变化的影响。设计与设置：前瞻性，随机对照试验。参与者：久坐的成年人（n = 115），未经治疗的高血压前期或轻度高血压。干预：为期六个月的有氧运动和力量训练。主要结局测量：在确定Vo（2）峰值的最大分级运动测试（GXT）的静止和每个阶段评估收缩压（SBP）。通过人体测量，双能X线骨密度仪和MRI评估一般和局部肥胖。计算每个GXT阶段的BP变化，并使用多元回归模型描述运动BP的变化与体脂和脂肪变化的关联。结果：训练后，锻炼者与对照者的Vo（2）peak显着增加，而一般和区域性肥胖的测量值显着降低。同样，在第3阶段（-9.4对-1.6 mm Hg，p = 0.03）和第4阶段（-7.9对-1.2 mm Hg，p = 0.03），阶段特异性SBP显着降低。所有阶段的汇总回归分析表明，锻炼者的SBP降低了7.1 mm Hg，但与对照组相比，该降低没有统计学意义（p = 0.12）。 Vo（2）峰值增加1.0 ml / kg / min，腰围减少1.0 cm，独立预测运动SBP减少1.0 mm Hg（分别为p = 0.04和p = 0.001）。结论：运动收缩压降低与腰围减少，腹部肥胖的标志物和体适能增加独立相关。这些发现表明，运动训练可改善对SBP具有独立影响的多种因素。

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