Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital; Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND, Malaga, Spain.
Faculty of Health Sciences, University of Malaga, Spain.
J Int Soc Sports Nutr. 2024 Dec;21(1):2433740. doi: 10.1080/15502783.2024.2433740. Epub 2024 Nov 29.
The regular practice of physical activity is considered a health promoter and appears to be one of the main contributors to the prevention of chronic diseases. However, the potential effects of exercise on health depending on the time of day at which it is performed have not yet been fully elucidated.
To evaluate the effect of physical exercise (aerobic or anaerobic) and chronobiology (morning or afternoon) on the glycemic metabolism of healthy subjects.
Healthy subjects participated in aerobic or anaerobic physical exercise sessions, either in the morning or in the afternoon. Blood was drawn from the subjects before, at the end of the exercise and 2 hours after the end of the exercise. Glycemic parameters were analyzed at these time points. A general linear model test was performed after verifying the normal distribution of the raw data (as assessed by the Shapiro-Wilk test) or after a logarithmic/square root transformation, considering aerobic or anaerobic exercise and morning or afternoon exercise as independent variables.
Twenty-three subjects (14 women and 9 men) were included in the study. The rate of change in glucose levels was significantly higher at the end of anaerobic exercise compared to aerobic exercise (1.19 ± 0.04 vs. 0.98 ± 0.02, respectively), with a more pronounced decrease in insulin and C-peptide levels following aerobic exercise. In addition, the increase of glucose was higher after the exercise in the morning compared with the afternoon (1.14 ± 0.03 vs. 1.03 ± 0.03, respectively).
The type of exercise and chronobiology influence short-term glucose metabolism.
有规律的体育锻炼被认为是促进健康的因素，而且似乎是预防慢性疾病的主要因素之一。然而，运动对健康的潜在影响取决于一天中进行运动的时间，这一点尚未得到充分阐明。
评估体育锻炼（有氧运动或无氧运动）和时间生物学（上午或下午）对健康受试者血糖代谢的影响。
健康受试者参加有氧运动或无氧运动，分别在上午或下午进行。在运动前、运动结束时和运动结束后 2 小时从受试者中抽取血液。在这些时间点分析血糖参数。在原始数据正态分布（通过 Shapiro-Wilk 检验评估）得到验证后，或在对数/平方根转换后，根据有氧或无氧运动以及上午或下午运动作为自变量，进行一般线性模型检验。
23 名受试者（14 名女性和 9 名男性）纳入研究。与有氧运动相比，无氧运动结束时血糖水平的变化率明显更高（分别为 1.19±0.04 与 0.98±0.02），并且有氧运动后胰岛素和 C 肽水平下降更为明显。此外，与下午相比，上午运动后血糖升高幅度更高（分别为 1.14±0.03 与 1.03±0.03）。
运动类型和时间生物学会影响短期血糖代谢。
