HICT对超重人群身体成分、心肺功能及代谢指标的影响

为了揭示12周高强度循环训练(high-intensity circuit training, HICT)对于超重肥胖男性的身体组成、心肺功能及代谢症候指标的影响,本研究将23位中年超重男性随机分配至HICT组((45.7±4.0) yrs,(172.1±5.1) cm,(76.6±10.2) kg, n=13)和控制组((47.8±4.8) yrs,(173.5±4.8) cm,(76.6±8.5) kg, n=10)。运动干预前、后分别测量受试者的各项指标。HICT组进行每周6次,为期12周(共72次)的高强度循环训练,即最大努力完成12个动作,运动30 s,休息15 s;控制组则维持日常身体活动。研究显示,相较于控制组,HICT组的体脂肪百分比由(25.1±5.1)%降至(23.2±4.1)%、体脂肪重由(19.5±5.7) kg降至(17.5±4.4) kg;体力指数由63.9±14.1升至72.4±16.9,腰围由(88.2±8.6) cm降至(84.2±8.1) cm、臀围由(99.5±5.1) cm降至(96.7±4.1) cm、收缩压由(136.1±11.8) mmHg降至(120.9±9.4) mmHg、舒张压由(88.9±9.3) mmHg降至(80.6±8.1) mmHg、空腹血糖由(105.9±25.0) mg/d L降至(97.1±22.1) mg/dL、血浆甘油三脂(triglyceride, TG)浓度由(101.5±61.7) mg/dL降至(117.5±50.3) mg/dL、胆固醇(total cholesterol, TC)浓度(161.9±20.0) mg/dL降至(117.5±50.3) mg/dL、高密度脂蛋白(high-density lipoproteincholesterol, HDL-C)浓度由(161.9±20.0) mg/dL升至(148.9±21.8) mg/dL,低密度脂蛋白胆固醇(low-density lipoprotein cholesterol, LDL-C)浓度由(105.1±25.0) mg/dL降至(97.2±23.5) mg/dL,实验前后,HITC组与控制组后测数值具有显著差异(p<0.05)。本研究表明,每周运动时间约60 min,为期12周共72次的高强度循环训练可有效改善中年超重肥胖男性的身体成分、心肺功能和代谢症候指标。

Effects of HICT on Body Composition,Cardiopulmonary Function and Metabolic Indexes in Overweight Population

In order to investigate the effects of 12 weeks’ high-intensity circuit training(HICT) on body composition,cardiopulmonary function and metabolic indexes in overweight or obese males, 23 middle aged overweight or obese males were randomly divided into HICT group((45.7±4.0) yrs,(172.1±5.1) cm,(76.6±10.2) kg, n=13) or control group((47.8±4.8) yrs,(173.5±4.8) cm,(76.6±8.5) kg, n=10). Before and after exercise intervention, the indexes of subjects were measured respectively. HICT group performed HICT(maximal effort to complete 12 exercises, each workout for 30 seconds and rest interval for 15 seconds) 6 times a week and control group kept their daily activity for 12 weeks. The results showed that compared to control group, the percentage of body fat in the HICT group decreased from(25.1±5.1)% to(23.2±4.1)%, and the body fat weight decreased from(19.5±5.7) kg to(17.5±4.4) kg;the body strength index increased from 63.9±14.1 to 72.4±16.9. The waistline decreased from(88.2±8.6) cm to(84.2±8.1) cm, the hip circumference decreased from(99.5 ±5.1) cm to(96.7±4.1) cm, the systolic pressure decreased from(136.1±11.8) mm Hg to(120.9±9.4) mm Hg, and the diastolic pressure decreased from(88.9±9.3) mm Hg to(80.6±8.1) mm Hg. Fasting blood glucose decreased from(105.9±25.0) mg/d L to(97.1±22.1) mg/d L, and plasma triglyceride(TG) concentration decreased from(101.5±61.7) mg/d L to(117.5±50.3) mg/d L. Total cholesterol(TC)concentration decreased from(161.9±20.0) mg/dL to(117.5±50.3) mg/d L, and high-density lipoprotein cholesterol(HDL-C) increased from(161.9±20.0) mg/d L to(148.9±21.8) mg/d L. The concentration of low-density lipoprotein cholesterol(LDL-C) decreased from(105.1±25.0) mg/dL to(97.2±23.5) mg/dL. Before and after the experiment,there was a significant difference between the HITC group and the control group(p<0.05). This study indicated that around 60 minutes each week for 12 weeks(totally 72 times) of HICT could effectively improve body composition,cardiopulmonary function and metabolic syndrome markers in overweight or obese males.