（1.School of Physical Education，Zhengzhou University，Zhengzhou 450044，China；2.School of Physical Education，Chongqing Normal University，Chongqing 401331，China）Abstract: In order to analyze the relations between post-exercising systolic blood pressure recovery (PSBPR) and simple obesity/overweight, and to probe into feasibility to use PSBR delay as a new controllable marker for obe-sity/overweight sufferers, the authors divided 169 volunteers into an obesity (overweight) groups (BMI≥24 kg/m2, n=91) and a normal body weight group (18 kg/m2≦BMI＜24 kg/m2, n=78) based on body mass index (BMI), put all the testees under a load gradually increased power bike experiment, respectively measured systolic blood pres-sure at calm before exercising, during exercising and in the recovery period after exercising, used the ratio of the systolic blood pressure in the 3rd minute after exercising to the systolic blood pressure in the 1st minute after exer-cising (systolic blood pressure recovery ratio in the 3rd minute, rSBPR) exceeding 1.0 as the index of PSBPR delay, compared differences in rSBPR and PSBPR delay occurrence rate between the two groups, analyzed the correlations between obesity indexes (body fat percentage, body mass index, BMI), waist circumference (WC), waist to hip ratio (WHR), waist circumference to stature ratio (WSR)) and rSBPR, and revealed the following findings: the rSBPRs of testees in the obesity (overweight) group (male: 0.97±0.03; female: 0.95±0.05) were higher than those of testees in the normal body weight group (male: 0.79±0.02; female: 0.80±0.04) (P<0.01 for all); the PSBPR delay occurrence rates of testees in the obesity (overweight) group (male: 16.0%; female: 23.4%) were significantly higher than those of testees in the normal weight group (male: 2.7%; female: 4.3%) (P<0.01 for all); the dangers of PSBPR delay oc-curring to obesity (overweight) males and females were respectively 8.0 and 4.6 times those occurring to body weight normal people. Correlativity analysis showed the followings: the coefficient of correlation between WSR and rSBPR of females in the obesity (overweight) group was 0.402 (P<0.01); the coefficients of correlation between BF%, BMI and rSBPR of males in the normal body weight group were respectively 0.436 (P<0.01) and 0.310 (P<0.01). The results indicated that PSBPR delay might be a controllable cardiovascular danger factor for obe-sity/overweight sufferers.
Key words: sports physiology；systolic blood pressure recovery；obesity；overweight；obesity indexes；exercise |
