Faculty of Sport Science, Ningbo University, Ningbo 315000, China.
Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK.
Int J Environ Res Public Health. 2022 Jun 11;19(12):7177. doi: 10.3390/ijerph19127177.
The purpose of this study was to examine if low-volume, high-intensity interval exercise (HIIE) was associated with changes in 24-h movement behaviors. A quasi-experimental study design was used. We collected accelerometry data from 21 eligible participants who consistently wore an ActiGraph for a period of two-weeks. Differences in behaviors were analyzed using a paired t-test and repeated measures analysis of variance. Regression analysis was used to explore relationships with factors that impacted changes. The results indicated a compensatory increase in sedentary time (ST) (4.4 ± 6.0%, p < 0.01) and a decrease in light-intensity physical activity (LPA) (−7.3 ± 16.7%, p < 0.05). Meanwhile, moderate-intensity physical activity (MPA), vigorous-intensity physical activity (VPA), and total physical activity (TPA) increased following exercise (p < 0.001). Sleep duration and prolonged sedentary time were reduced (p < 0.05). Exercise intensity and aerobic capacity were associated with changes in ST. The results from the study indicate that participating in a low-volume HIIE encouraged participants who were previously inactive to become more active. The observations of increases in ST may have displaced a prolonged sitting time. The decrease in sleeping time observed may be reflecting an increased sleep quality in connection with increased higher-intensity PA.
本研究旨在探讨低容量、高强度间歇训练（HIIE）是否与 24 小时运动行为的变化有关。采用准实验设计。我们从 21 名符合条件的参与者那里收集了佩戴 ActiGraph 长达两周的数据。使用配对 t 检验和重复测量方差分析来分析行为差异。回归分析用于探索与影响变化的因素的关系。结果表明，久坐时间（ST）（4.4±6.0%，p<0.01）呈代偿性增加，而低强度体力活动（LPA）（-7.3±16.7%，p<0.05）减少。同时，中等强度体力活动（MPA）、高强度体力活动（VPA）和总体力活动（TPA）在运动后增加（p<0.001）。睡眠时间和久坐时间延长减少（p<0.05）。运动强度和有氧能力与 ST 的变化有关。研究结果表明，低容量 HIIE 的参与鼓励了以前不活跃的参与者变得更加活跃。ST 增加的观察结果可能取代了久坐时间的延长。观察到睡眠时间减少可能反映了与更高强度 PA 相关的睡眠质量提高。
