a Sport and Physical Activity Research Group, Center for Health and Social Care Research , University of Vic - Central University of Catalonia , Barcelona , Spain.
b Department of Psychology and Department of Health Sciences , Northeastern University , Boston , MA , USA.
J Sports Sci. 2018 Oct;36(20):2311-2316. doi: 10.1080/02640414.2018.1451212. Epub 2018 Mar 13.
The aim of this study was to examine relationships between activPAL™-determined sedentary behavior (SB) and physical activity (PA) with academic achievement. A total of 120 undergraduates (N = 57 female; 20.6 ± 2.3 years) participated in the study. Academic achievement was measured as the grade point average obtained from all completed courses. Participants wore on the right tight an activPAL™ for 7 days to determine total sedentary time, total number of sedentary breaks, sedentary bouts, standing time, light and moderate-to-vigorous physical activity (MVPA). Separate multiple linear regression models were performed to examine associations between SB variables and academic achievement. Light PA, MVPA, total sedentary time, total standing time, or total number of sedentary breaks were not related to academic achievement. Independently of PA, the amount of time spent in sedentary bouts of 10-20min during weekdays was positively related to academic achievement. Given that college students spend the majority of their workday in environments that encourage prolonged sitting, these data suggest that interruptions in prolonged periods of sitting time every 10-20min via short breaks may optimize cognitive operations associated with academic performance.
本研究旨在探讨 activPAL™ 测定的久坐行为（SB）和体力活动（PA）与学业成绩之间的关系。共有 120 名本科生（N=57 名女性；20.6±2.3 岁）参与了这项研究。学业成绩以所有完成课程的平均绩点来衡量。参与者在右侧佩戴 activPAL™ 7 天，以确定总久坐时间、总久坐休息次数、久坐时间、站立时间、低强度到中高强度体力活动（MVPA）。分别进行了多个线性回归模型，以检验 SB 变量与学业成绩之间的关联。低强度 PA、MVPA、总久坐时间、总站立时间或总久坐休息次数与学业成绩无关。独立于 PA，工作日内 10-20 分钟久坐时间与学业成绩呈正相关。鉴于大学生在大多数工作日都处于鼓励长时间久坐的环境中，这些数据表明，通过短暂休息每隔 10-20 分钟打断长时间的久坐时间可能会优化与学业表现相关的认知操作。
