Che Jusoh Mohd Rahimi, Stannard Stephen R, Mündel Toby
School of Sport and Exercise, Massey University , Palmerston North, New Zealand.
Temperature (Austin). 2016 Apr 25;3(3):444-454. doi: 10.1080/23328940.2016.1179382. eCollection 2016.
This study determined whether sago porridge ingested immediately after exercise (Exercise 1) in warm-humid conditions (30 ± 1°C, 71 ± 4 % RH; 20 km·h frontal airflow) conferred more rapid recovery, as measured by repeat performance (Exercise 2), compared to a control condition. Eight well-trained, male cyclists/triathletes (34 ± 9 y, VOpeak 70 ± 10 ml·kg·min, peak aerobic power 413 ± 75 W) completed two 15-min time-trials pre-loaded with 15-min warm-up cycling following >24h standardization of training and diet. Mean power output was not different between trials during Exercise 1 (286 ± 67 vs. 281 ± 59 W), however, was reduced during Exercise 2 for control (274 ± 61 W) but not sago (283 ± 60 W) that led to a significant performance decrement (vs. Exercise 1) of 3.9% for control and an improvement (vs. control) of 3.7% for sago during Exercise 2 ( < 0.05). Sago ingestion was also associated with higher blood glucose concentrations during recovery compared to control. These results indicate that feeding sago during recovery from exercise in a warm-humid environment improves recovery of performance during a subsequent exercise bout when compared to a water-only control. As these effects were larger than the test-retest coefficient of variation for work completed during the 15-min time-trial (2.3%) it can be confidently concluded that the observed effects are real.
本研究旨在确定在温暖潮湿条件下（30±1°C，相对湿度71±4%；正面气流速度20 km·h）运动（运动1）后立即摄入西米粥，与对照条件相比，是否能通过重复运动表现（运动2）衡量出更快的恢复速度。八名训练有素的男性自行车运动员/铁人三项运动员（34±9岁，峰值摄氧量70±10 ml·kg·min，峰值有氧功率413±75 W）在训练和饮食标准化>24小时后，完成了两次15分钟的计时赛，赛前进行了15分钟的热身骑行。运动1期间，两次试验的平均功率输出无差异（286±67 vs. 281±59 W），然而，在运动2期间，对照组（274±61 W）的功率输出降低，而西米组（283±60 W）未降低，这导致对照组在运动2期间的表现显著下降（相对于运动1）3.9%，西米组相对于对照组提高了3.7%（P<0.05）。与对照组相比呢，摄入西米还与恢复期间更高的血糖浓度相关。这些结果表明，在温暖潮湿环境中运动恢复期间喂食西米，与仅饮水的对照组相比，能改善后续运动回合中的运动表现恢复。由于这些效应大于15分钟计时赛期间完成工作的重测变异系数（2.3%），可以有信心地得出结论，观察到的效应是真实的。
