Allen Edward, Gray Partick, Kollias-Pearson Angeliki, Oag Erlend, Pratt Katrina, Henderson Jennifer, Gray Stuart Robert
a Institute of Medical Sciences , University of Aberdeen, Foresterhill , Aberdeen , AB25 2ZD , UK.
J Sports Sci. 2014;32(10):911-6. doi: 10.1080/02640414.2013.865254. Epub 2014 Feb 6.
It is well established that regular exercise can reduce the risk of cardiovascular disease, although the most time-efficient exercise protocol to confer benefits has yet to be established. The aim of the current study was to determine the effects of short-duration sprint interval exercise on postprandial triacylglycerol. Fifteen healthy male participants completed two 2 day trials. On day 1, participants rested (control) or carried out twenty 6 s sprints, interspersed with 24 s recovery (sprint interval exercise--14 min for total exercise session). On day 2, participants consumed a high-fat meal for breakfast with blood samples collected at baseline, 2 h and 4 h. Gas exchange was also measured at these time points. On day 2 of control and sprint interval exercise trials, there were no differences (P < 0.05) between trials in plasma glucose, triacylglycerol, insulin or respiratory exchange ratio (RER). The area under the curve for plasma triacylglycerol was 7.67 ± 2.37 mmol · l(-1) x 4 h(-1) in the control trial and 7.26 ± 2.49 mmol · l(-1) x 4 h(-1) in the sprint interval exercise trial. Although the sprint exercise protocol employed had no significant effect on postprandial triacylglycerol, there was a clear variability in responses that warrants further investigation.
众所周知，经常锻炼可以降低心血管疾病的风险，尽管尚未确定最具时间效率的有益锻炼方案。本研究的目的是确定短时间冲刺间歇运动对餐后甘油三酯的影响。15名健康男性参与者完成了两项为期2天的试验。在第1天，参与者休息（对照组）或进行20次6秒的冲刺，中间穿插24秒的恢复时间（冲刺间歇运动——整个运动时段共14分钟）。在第2天，参与者早餐食用高脂餐，并在基线、2小时和4小时采集血样。在这些时间点还测量了气体交换。在对照组和冲刺间歇运动试验的第2天，血浆葡萄糖、甘油三酯、胰岛素或呼吸交换率（RER）在试验之间没有差异（P<0.05）。对照组试验中血浆甘油三酯的曲线下面积为7.67±2.37 mmol·l⁻¹×4 h⁻¹，冲刺间歇运动试验中为7.26±2.49 mmol·l⁻¹×4 h⁻¹。尽管所采用的冲刺运动方案对餐后甘油三酯没有显著影响，但反应存在明显的变异性，值得进一步研究。
