CADENCE-KIDS: Cadence and Intensity in Children and Adolescents

CADENCE-KIDS：儿童和青少年的节奏和强度

基本信息

批准号：
8687701
负责人：
William Johnson
金额：
$ 21.58万
依托单位：
LSU PENNINGTON BIOMEDICAL RESEARCH CTR
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：
2013-07-01 至 2016-04-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/8687701
关键词：
10 year old 15 year old 20 year old Adolescent Adolescent Behavior Adult Age Age-Years Biological Neural Networks Biomedical Research Child Classification Clinical Communities Complex Data Development Devices Digit structure Equation Exercise stress test Exploratory/Developmental Grant Frequencies Frustration Future Gait Generic Drugs Guidelines Health Benefit Indirect Calorimetry Individual Investigation Laboratories Length Life Life Style Link Measurement Measures Memory Metabolic Methods Metric Monitor Movement Output Oxygen Pattern Pattern Recognition Physical activity Positioning Attribute Public Health Recommendation Recruitment Activity Research Research Design Running Schools Science Signal Transduction Source Speed Statistical Models Techniques Technology Testing Time Touch sensation Translating Variant Walking base boys design experience girls heuristics improved instrument instrumentation interest markov model novel programs public health relevance real world application sex trend uptake user-friendly

项目摘要

DESCRIPTION (provided by applicant): Cadence-Kids is an R21 exploratory/developmental study designed to 1) measure and link cadence (steps/minute) to intensity cut points across age in 6-20 year olds, and 2) describe children's and adolescents' behavior in free-living using these cut points. Cadence is just one of the temporal-spatial parameters of gait. Cadence multiplied by stride length equals speed. Capture and expression of physical activity in terms of cadence represents an overlooked opportunity to examine free-living patterns of ambulatory intensity. To achieve our primary aim, we will identify and recruit 10 children and adolescents (5 boys, 5 girls) from each age-year between 6-20 years (a span of 10 age-years for a total of 150 children and adolescents) to a lab- based study of cadence (assessed on a treadmill) followed by a week-long free-living study of habitual physical activity. Under laboratory conditions we will calibrate different treadmill cadences with indirect calorimetry. We will subsequently monitor these same individuals' habitual minute-by-minute cadence for one week. We hypothesize that children's intensity will increase as cadence increases in a linear or nonlinear fashion such that we will be able to develop novel statistical models for predicting markers (cut points) of intensity from cadence. We further hypothesize that free-living estimates of children's time in at least moderate intensity activity will be higher using sex and age-calibrated cadence results compared to that obtained from more generic activity count cut points. We are uniquely positioned at the Pennington Biomedical Research Center to successfully conduct Cadence Kids as designed in a 2-year time period. We have established recruiting methods, excellent connections with schools and the community, and are fully experienced in exercise testing and accelerometry. The information derived from this R21 exploratory/developmental study will inform future R01 investigations related to cadence as an indicator of intensity in determining healthful levels of children's free-living physical activity. If successful, we expect that cadence cut points will be used both to assess ambulatory intensity, but also to inform program design focused on increasing not only the volume of physical activity (e.g., steps/day) but also its intensity (e.g., cadence) in user-friendly metrics.

描述（由申请人提供）：Cadence-Kids是一项R21探索性/发育研究，旨在1）衡量和连接6-20岁年龄段的年龄范围的量子（步骤/分钟），以及2）描述了儿童和青少年在自由生活中使用这些切口的行为。节奏只是步态的时间空间参数之一。节奏乘以步长的长度等于速度。从节奏方面捕获和表达体育活动是一个被忽视的机会来检查卧床强度的自由生活模式。为了实现我们的主要目标，我们将确定并招募10名儿童和青少年（5个男孩，5个女孩）从6-20岁（总计150名儿童和青少年的10岁年龄段）之间的每个年龄段）到基于实验室的节奏研究（在跑步机上进行评估），然后进行长达一周的习惯性体育活动研究。在实验室条件下，我们将校准带有间接量热法的不同跑步机节奏。随后，我们将监视这些同一个人的习惯分钟节奏，持续一周。我们假设，随着线性或非线性方式的节奏增加，儿童的强度将增加，以便我们能够开发出新的统计模型来预测节奏的强度标记（切点）。我们进一步假设，与从更通用的活动计数剪切点获得的性别和年龄的节奏结果相比，使用性别和年龄校准的节奏结果，使用性别和年龄化的节奏结果对儿童时间至少在中等强度活动中的自由生活估计将更高。我们在Pennington生物医学研究中心独特地定位，以成功地在2年期间设计的Cadence Kids。我们已经建立了招聘方法，与学校和社区的良好联系，并且在运动测试和加速度计方面都有充分的经验。从这项R21探索性/发展研究中得出的信息将为与节奏有关的未来R01调查提供信息，这是确定儿童自由生活体育锻炼水平的强度的指标。如果成功的话，我们预计既有节奏的切点既可以评估门诊强度，又要告知计划设计不仅要增加体育锻炼量（例如，步骤/天），还要增加其强度（例如，例如， Cadence）在用户友好的指标中。

项目成果

期刊论文数量（2）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Cadence (steps/min) and intensity during ambulation in 6-20 year olds: the CADENCE-kids study.

DOI：
10.1186/s12966-018-0651-y
发表时间：
2018-02-26
期刊：
The international journal of behavioral nutrition and physical activity
影响因子：
0
作者：
Tudor-Locke C;Schuna JM Jr;Han H;Aguiar EJ;Larrivee S;Hsia DS;Ducharme SW;Barreira TV;Johnson WD
通讯作者：
Johnson WD

Youth Energy Expenditure During Common Free-Living Activities and Treadmill Walking.