Human Performance Laboratory, Barry University, Miami Shores, FL 33138, USA.
Baylor Laboratories for Exercise Science and Technologies, Baylor University, Waco, TX 40385, USA.
Int J Environ Res Public Health. 2021 Apr 1;18(7):3655. doi: 10.3390/ijerph18073655.
People practicing high-intensity interval exercise (HIIE) fasted during the morning hours under a lack of sleep. Such a habit may jeopardize the health benefits related to HIIE and adequate sleep. Fifteen habitually good sleeper males (age 31.1 ± 5.3 SD year) completed on a treadmill two isocaloric (500 kcal) HIIE sessions (3:2 min work:rest) averaged at 70% VO after 9-9.5 h of reference sleep exercise (RSE) and after 3-3.5 h of acute-partial sleep deprivation exercise (SSE). Diet and sleep patterns were controlled both 1 week prior and 2 days leading up to RSE and SSE. HIIE related performance and substrate utilization data were obtained from the continuous analysis of respiratory gases. Data were analyzed using repeated measures ANOVA with the baseline maximum oxygen uptake (VO) and body fat percentage (BF%) as covariates at < 0.05. No difference was observed in VO, time to complete the HIIE, VE, RER, CHO%, and FAT% utilization during the experimental conditions. Whether attaining an adequate amount of sleep or not, the fasted HIIE performance and metabolism were not affected. We propose to practice the fasted HIIE under adequate sleep to receive the pleiotropic beneficial effects of sleep to the human body.
人们在睡眠不足的情况下，在清晨进行高强度间歇训练（HIIE），并保持空腹状态。这种习惯可能会影响到 HIIE 和充足睡眠带来的健康益处。15 名习惯性良好睡眠者（年龄 31.1±5.3 岁）在跑步机上进行了两次等热量（500 千卡）的 HIIE 训练（3:2 分钟工作：休息），平均强度为 70% VO2，分别在参考睡眠运动（RSE）后 9-9.5 小时和急性部分睡眠剥夺运动（SSE）后 3-3.5 小时。在 RSE 和 SSE 之前的 1 周和前 2 天，控制饮食和睡眠模式。通过连续分析呼吸气体获得与 HIIE 相关的表现和底物利用数据。使用重复测量方差分析，以基线最大摄氧量（VO）和体脂百分比（BF%）为协变量，<0.05。在实验条件下，VO、完成 HIIE 的时间、VE、RER、CHO%和 FAT%利用率没有差异。无论是否获得足够的睡眠，空腹 HIIE 的表现和代谢都没有受到影响。我们建议在充足睡眠下进行空腹 HIIE，以获得睡眠对人体的多种有益影响。
