Cardiff School of Sport, University of Wales Institute Cardiff, Cardiff, UK.
BMC Public Health. 2009 Dec 15;9:466. doi: 10.1186/1471-2458-9-466.
Cardiovascular disease is the leading cause of mortality worldwide. Risk factors associated with cardiovascular disease have been shown to track from childhood through to adulthood. Previous school-based physical activity interventions have demonstrated modest improvements to cardiovascular disease risk factors by implementing extra-curricular activities or improving current physical education curriculum. Few have attempted to increase physical activity in class-room taught curriculum subjects. This study will outline a school-based cross-curricular physical activity intervention to combat cardiovascular disease risk factors in 11-14 year old children.
METHOD/DESIGN: A South Wales Valley school of low socio-economic status has been selected to take part. Participants from year eight (12-13 years) are to be assigned to an intervention group, with maturation-matched participants from years seven (11-12 years) and nine (13-14 years) assigned to a control group. A cross-curricular physical activity intervention will be implemented to increase activity by two hours a week for 18 weeks. Participants will briskly walk 3200 m twice weekly during curriculum lessons (60 minutes duration). With the exception of physical education, all curriculum subjects will participate, with each subject delivering four intervention lessons. The intervention will be performed outdoors and on school premises. An indoor course of equal distance will be used during adverse weather conditions. Cardiovascular disease risk factors will be measured pre- and post-intervention for intervention and control groups. These will take place during physical education lessons and will include measures of stature, mass, waist, hip, and neck circumferences, together with skinfold measure's taken at four sites. Blood pressure will be measured, and fitness status assessed via the 20 m multi-stage fitness test. Questionnaires will be used to determine activity behaviour (physical activity questionnaire for adolescence), diet (seven day food diary) and maturation status. Fasting blood variables will include total cholesterol, low-density lipoprotein cholesterol, high density lipoprotein cholesterol, triglycerides, insulin, glucose, high-sensitivity C-reactive protein, interleukin-6, adiponectin, and fibrinogen. Motivational variables and psychological well-being will be assessed by questionnaire.
Our study may prove to be a cost effective strategy to increase school time physical activity to combat cardiovascular disease risk factors in children.
[NCT00998478].
心血管疾病是全球范围内导致死亡的主要原因。与心血管疾病相关的风险因素已被证明从儿童期一直持续到成年期。以前的基于学校的体育活动干预措施通过实施课外活动或改进当前的体育教育课程，已经证明可以适度改善心血管疾病风险因素。很少有人试图在课堂教学课程中增加体育活动。本研究将概述一项基于学校的跨课程体育活动干预措施，以对抗 11-14 岁儿童的心血管疾病风险因素。
方法/设计：选择南威尔士山谷一所社会经济地位较低的学校参与。将八年级（12-13 岁）的参与者分配到干预组，将与成熟度匹配的七年级（11-12 岁）和九年级（13-14 岁）的参与者分配到对照组。将实施跨课程体育活动干预措施，每周增加活动量两小时，持续 18 周。参与者将在课程期间每周两次快速步行 3200 米（持续 60 分钟）。除了体育课之外，所有课程科目都将参与，每个科目都将提供四节干预课。干预将在户外和学校场地进行。在恶劣天气条件下，将使用同等距离的室内课程。将在干预组和对照组的体育课前后测量心血管疾病风险因素。这些将在体育课期间进行，包括身高、体重、腰围、臀围和颈围的测量，以及四个部位的皮脂厚度测量。将测量血压，并通过 20 米多阶段体能测试评估体能状态。将使用问卷确定活动行为（青少年体力活动问卷）、饮食（七天食物日记）和成熟状态。空腹血液变量包括总胆固醇、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇、甘油三酯、胰岛素、血糖、高敏 C 反应蛋白、白细胞介素-6、脂联素和纤维蛋白原。通过问卷评估动机变量和心理健康。
我们的研究可能被证明是一种具有成本效益的策略，可以增加学校时间的体育活动，以对抗儿童的心血管疾病风险因素。
[NCT00998478]。
