Pilot Study on Bicycle Trains to Improve Children's Physical Activity

自行车列车改善儿童身体活动的试点研究

基本信息

批准号：
8607590
负责人：
Jason A Mendoza
金额：
$ 11.1万
依托单位：
SEATTLE CHILDREN'S HOSPITAL
依托单位国家：
美国
项目类别：
财政年份：
2013
资助国家：
美国
起止时间：
2013-02-01 至 2016-01-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8607590
关键词：
Address Adult Affect Age Agreement Algorithms Bicycling Cardiovascular Diseases Child Childhood Clinical Trials Design Commuting Data Environment Epidemic Funding Future Generations Goals Healthy People 2020 Heart Rate Information Systems Intervention Life Location Low income Malignant Neoplasms Measures Metabolic Methods Middle School Student Modeling Monitor Motor Skills Motor Vehicles Non-Insulin-Dependent Diabetes Mellitus Obesity Obesity associated disease Participant Physical activity Pilot Projects Policies Population Positioning Attribute Protocols documentation Public Health Publishing Randomized Controlled Trials Recruitment Activity Research Risk Risk Factors Route Schools System Testing Training Training Programs Validation Walking cardiovascular disorder risk cost elementary school ethnic minority population fifth grade fourth grade high risk improved innovation instrument lifetime risk obesity in children obesity prevention obesity risk prevent programs public health relevance social socioeconomics trend

项目摘要

DESCRIPTION (provided by applicant): Physical activity decreases the risk of cardiovascular disease, Type 2 Diabetes, and multiple cancers, and is important for obesity prevention. US children's active commuting to school (ACS; walking or cycling to school), previously common (48% in 1969) is now uncommon (13% in 2009). This decline coincided with the obesity epidemic, which disproportionately affects low-income and ethnic minority children. Programs to increase children's moderate-to-vigorous physical activity (MVPA) and lower obesity risk are necessary. The Bicycle Train is an innovative program in which children cycle to and from school led by adults. Bicycle Trains provide another option for ACS, especially for children who live too far to walk to school. No randomized controlled trials (RCT) have evaluated Bicycle Trains and children's ACS or MVPA. Increasing the percent of children who cycle to school is sub-objective PA-14 of US Healthy People 2020. The Primary Goals are to (a) conduct a pilot cluster RCT of a Bicycle Train program among low- income, ethnic minority 4th and 5th grade children and (b) collect concurrent accelerometer and GPS data and validate algorithms to identify and measure physical activity intensity and duration for children's cycling compared to heart rate monitors. This pilot study will provide feasibility data and extend the validity of quantifying cycling-related MVPA for a future fully-powered R01-funded Bicycle Train cluster RCT. Our Specific Aims will be to: SA1) evaluate among 80 4th and 5th grade ethnic minority children the feasibility of a pilot cluster RCT of a Bicycle Train program for (a) recruiting participants for a planned full-scale cluster RCT (b) promoting their participation, and (c) identifying barriers/facilitators to their participation; and SA2) validate algorithms examining concurrent accelerometry and GPS data to identify and measure children's physical activity intensity and duration while cycling compared to the criterion standards of heart rate monitoring and direct observation Feasibility Criteria: As recommended for pilot studies, in which the main goal is to test feasibility of a research protocol, a fully powered R01-funded cluster RCT will be determined to be feasible if: FC 1) We successfully recruit 80 low-income 4th and 5th grade children for the pilot Bicycle Train cluster RCT FC 2) The intervention children participate in the Bicycle Train program on average twice/week or more FC 3) Algorithms analyzing concurrent GPS and accelerometer data have high agreement, i.e. >90% agreement, with heart rate data/direct observation in distinguishing children's cycling-related physical activity duration an intensity from other physical activities and riding in a motor vehicle This R21 application will provide important planning and methods validation targeted towards ethnic- minority children, the population at highest risk for childhood obesity in the US.

描述（由申请人提供）：体育活动降低了心血管疾病，2型糖尿病和多种癌症的风险，对预防肥胖至关重要。美国儿童的积极通勤上学（ACS；步行或骑自行车上学），以前常见（1969年为48％）并不常见（2009年为13％）。这种下降与肥胖症流行相吻合，这对低收入和少数民族儿童产生了不成比例的影响。需要增加儿童中度到剧烈的体育锻炼（MVPA）和降低肥胖风险的计划。自行车列车是一项创新的计划，儿童在该计划中骑车往返于成年人的学校。自行车火车为ACS提供了另一种选择，尤其是对于生活得太远而无法走上学校的孩子。没有随机对照试验（RCT）评估了自行车列车和儿童ACS或MVPA。增加骑自行车的儿童的百分比是美国健康人2020年的亚客观PA-14。（a）在低收入，少数少数族裔和5年级的儿童中进行自行车火车计划的飞行员集群RCT，以及（b）一致的加速度计和GPS数据和验证Algorith和验证algorith和识别和衡量儿童的陪伴，以识别和衡量的儿童，以供儿童进行陪伴的陪伴。这项试点研究将提供可行性数据，并延长量化与循环相关的MVPA的有效性，以提供未来全功率的R01资助的自行车列车群集RCT。我们的具体目的是：SA1）评估80个4年级和五年级少数民族儿童中的自行车列车计划的可行性，用于（a）为计划的全尺度集群RCT招募参与者（b）促进他们的参与，以及（c）识别参与者的障碍/便利者； and SA2) validate algorithms examining concurrent accelerometry and GPS data to identify and measure children's physical activity intensity and duration while cycling compared to the criterion standards of heart rate monitoring and direct observation Feasibility Criteria: As recommended for pilot studies, in which the main goal is to test feasibility of a research protocol, a fully powered R01-funded cluster RCT will be determined to be feasible if: FC 1)我们成功地招募了80个低收入4年级和5年级的孩子，用于飞行员自行车群集团RCT FC 2）干预儿童参加自行车火车计划平均每周两次或更多FC 3）分析并发GP和加速度计数据的算法具有很高的一致性，即> 90％的一致性，在区分儿童的自行车相关的身体活动方面，具有心率的数据/直接观察，从其他率和骑自行车进行较小的责任范围内，对汽车的较小范围的责任却将提供重要的责任，该率在机动车上骑车，将其乘坐重要的责任，方法是在机动车上骑行，方法是骑车的范围。美国的肥胖。