Peterson Neil E, Sirard John R, Kulbok Pamela A, DeBoer Mark D, Erickson Jeanne M
College of Nursing, Brigham Young University, Provo, Utah.
Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts.
Res Nurs Health. 2018 Feb;41(1):30-38. doi: 10.1002/nur.21845. Epub 2018 Jan 9.
Movement and non-movement behaviors include sleep, sedentary behavior (SB) and physical activity (PA). While young adults are generally perceived as healthy, the level and relationship of SB and PA in college-age students has not been greatly explored. The purpose of this study was to objectively measure the levels of SB and PA in 18-20 year-old university students, record their self-reported extracurricular activities, and explore the relationship of all these with body mass index (BMI) and waist circumference (WC). Male (n = 48) and female (n = 46) students participated in this cross-sectional study. Hierarchical multiple regression analyses were used to examine time spent in SB, moderate to vigorous physical activity (MVPA), number of self-reported sedentary extracurricular activities, and their relation to the dependent variables of BMI and WC. In correlation analyses, SB (p < .001) and MVPA (p = .017) both were negatively associated with BMI, and "other" race or ethnicity (African American, Hispanic, mixed; p = .013) and number of self-reported sedentary extracurricular activities (p = .006) were positively associated with BMI. In the WC regression model, SB (p = .018) was negatively associated and number of self-reported sedentary extracurricular activities (p = .006) was positively associated with WC. University students may be both highly active and highly sedentary. Future researchers should consider targeting interventions to reduce SB in addition to improving PA.
运动和非运动行为包括睡眠、久坐行为（SB）和身体活动（PA）。虽然一般认为年轻人身体健康，但大学生中久坐行为和身体活动的水平及关系尚未得到深入研究。本研究的目的是客观测量18至20岁大学生的久坐行为和身体活动水平，记录他们自我报告的课外活动情况，并探讨所有这些因素与体重指数（BMI）和腰围（WC）的关系。男性（n = 48）和女性（n = 46）学生参与了这项横断面研究。采用分层多元回归分析来检验久坐行为、中度至剧烈身体活动（MVPA）的时间、自我报告的久坐课外活动数量，以及它们与BMI和WC等因变量的关系。在相关性分析中，久坐行为（p <.001）和中度至剧烈身体活动（p =.017）均与BMI呈负相关，“其他”种族或族裔（非裔美国人、西班牙裔、混血；p =.013）和自我报告的久坐课外活动数量（p =.006）与BMI呈正相关。在腰围回归模型中，久坐行为（p =.018）与腰围呈负相关，自我报告的久坐课外活动数量（p =.006）与腰围呈正相关。大学生可能既高度活跃又久坐不动。未来的研究人员除了改善身体活动外，还应考虑针对减少久坐行为进行干预。
