Ramirez-Rico Elena, Hilland Toni A, Foweather Lawrence, Fernández-Garcia Emilia, Fairclough Stuart J
a Department of Physical Education , University Complutense of Madrid , Madrid , Spain.
Eur J Sport Sci. 2014;14(3):287-93. doi: 10.1080/17461391.2013.827242. Epub 2013 Aug 28.
Levels of physical inactivity and sedentary behaviour among English and Spanish youth are high and vary within different regions of each country. Little though is known about these during specific periods of the day. The purpose of this study was to describe physical activity (PA) and sedentary time during segments of the day and week, and compare these critical contexts between youth in the Liverpool and Madrid areas of England and Spain, respectively. PA was objectively assessed in 235 Liverpool- and 241 Madrid youth (aged 10-14 years) who wore accelerometers for seven consecutive days. Minutes of sedentary time, moderate PA, vigorous PA and moderate-to-vigorous physical activity (MVPA) were calculated for weekdays, weekend days, school time, non-school time and after-school. Between-country differences were analysed using analysis of covariance (ANCOVA). Madrid youth spent significantly more time in sedentary activities than their Liverpool counterparts. Madrid youth engaged in more minutes of moderate intensity physical activity (MPA) than Liverpool youth during weekdays, school time and non-school time (P<0.01). Liverpool children recorded more time in vigorous physical activity (VPA) than Madrid peers during week days and weekend days (P<0.01) and during school time and after-school periods (P<0.01). The MVPA was significantly higher among Madrid youth during non-school time (P<0.01). Around 25% of all youth achieved recommended levels of MVPA. Low levels of MVPA and systematic differences in sedentary time, MPA and VPA exist between Liverpool and Madrid youth. Interventions targeted at the least-active children during weekends, after-school and non-school periods within the cultural contexts common to each city are required.
英国和西班牙青少年的身体不活动和久坐行为水平较高，且在每个国家的不同地区存在差异。然而，对于一天中特定时间段内的这些情况却知之甚少。本研究的目的是描述一天和一周内各时间段的身体活动（PA）和久坐时间，并比较英国利物浦地区和西班牙马德里地区青少年在这些关键情况下的差异。对235名利物浦青少年和241名马德里青少年（年龄在10 - 14岁之间）进行了客观的PA评估，他们连续七天佩戴加速度计。计算了工作日、周末、上学时间、非上学时间和放学后的久坐时间、中等强度PA、剧烈PA和中等至剧烈身体活动（MVPA）的分钟数。使用协方差分析（ANCOVA）分析国家之间的差异。马德里青少年在久坐活动上花费的时间明显多于利物浦的同龄人。在工作日、上学时间和非上学时间，马德里青少年进行中等强度身体活动（MPA）的分钟数多于利物浦青少年（P<0.01）。在工作日和周末以及上学时间和放学后，利物浦儿童进行剧烈身体活动（VPA）的时间比马德里同龄人多（P<0.01）。在非上学时间，马德里青少年的MVPA明显更高（P<0.01）。所有青少年中约25%达到了推荐的MVPA水平。利物浦和马德里青少年之间的MVPA水平较低，且在久坐时间、MPA和VPA方面存在系统性差异。需要针对每个城市共有的文化背景下周末、放学后和非上学期间最不活跃的儿童进行干预。
