Yokohama City Sports Medical Center, Nissan Stadium, 3302-5, Kodukue-chou, Kouhoku-ku, Yokohama-City, 222-0036, Japan.
J Cardiol. 2010 Jul;56(1):79-84. doi: 10.1016/j.jjcc.2010.03.001. Epub 2010 Apr 7.
Heart rate recovery (HRR) after exercise is an independent risk factor for cardiovascular disease and mortality, and it is well known to be modifiable by weight loss. We investigated whether HRR was mainly improved by better cardiopulmonary function or by alteration of the metabolic profile.
The weight loss program included 2h of group exercise per week and individual dietary instruction by a qualified dietician every week. Clinical assessment (including HRR) was done before and after the 3-month program.
The subjects were 125 obese persons without a past history of stroke, cardiovascular events, or use of medications who participated in and completed our exercise plus weight loss program.
HRR (35.61+/-12.83 to 45.34+/-13.6 beats/min, p<0.0001) was significantly faster after the program. The change in HRR was significantly correlated (p<0.05) with the changes in body weight, body mass index, percent body fat, waist circumference, hip circumference, resting heart rate, peak exercise heart rate, exercise time, maximal work load, physical working capacity divided by body weight (PWC75%HRmax/weight), subcutaneous fat area, visceral fat area, low-density lipoprotein cholesterol, and leptin. Multivariate analysis showed that the change in HRR was significantly correlated (p<0.05) with the changes in resting heart rate, peak exercise heart rate, and PWC75%HRmax/weight.
Our data demonstrated that HRR can be improved in obese subjects by a 3-month exercise and weight loss program. Improvement in cardiopulmonary function by exercise seems to be the main contributor to the increment of HRR.
运动后心率恢复（HRR）是心血管疾病和死亡率的独立危险因素，众所周知，它可以通过减肥来改变。我们研究了 HRR 是否主要通过改善心肺功能或改变代谢特征来改善。
减肥计划包括每周 2 小时的团体运动和每周由合格营养师进行的个人饮食指导。在计划开始前和 3 个月后进行临床评估（包括 HRR）。
125 名肥胖患者，无中风、心血管事件或使用药物史，参加并完成了我们的运动加减肥计划。
HRR（35.61±12.83 至 45.34±13.6 次/分钟，p<0.0001）在计划后明显加快。HRR 的变化与体重、体重指数、体脂百分比、腰围、臀围、静息心率、最大运动心率、运动时间、最大工作负荷、体重的体力工作能力（PWC75%HRmax/体重）、皮下脂肪面积、内脏脂肪面积、低密度脂蛋白胆固醇和瘦素的变化显著相关（p<0.05）。多元分析显示，HRR 的变化与静息心率、最大运动心率和 PWC75%HRmax/体重的变化显著相关（p<0.05）。
我们的数据表明，肥胖患者通过 3 个月的运动和减肥计划可以改善 HRR。运动引起的心肺功能改善似乎是 HRR 增加的主要原因。
