PHYSICAL ACTIVITY AND FITNESS ASSESSMENT IN YOUNG ADULTS

本研究比较了几种评价农业生产水平的方法， 运动员和100名非运动员的习惯性体力活动（PA）和健身 男女年龄在20到59岁之间。 这项研究将确定可靠性 和有效性的各种评估工具，评估PA和 健身 PA将由综合明尼苏达州反复评估 休闲时间PA问卷和较短的问卷; 这些问卷将与24小时PA和食物的问卷进行比较， 日志记录和机械运动探测器（Caltrac）。 PA和饮食 每年将收集21次日志和运动探测器数据（3 一周中的每一天）。 身体健康将通过以下方式进行评估： 使用布鲁斯方案和贝克曼方案的踏车运动试验 代谢测量推车，用于确定最大摄氧量（VO 2 max）。 将结果与估计的VO 2 max进行比较。获得的值 简单的次极量步和自行车测力计测试;人体测量 测量，包括相对体重，多个皮褶厚度， 体围和水下称重测定体密度 和体脂百分比。 需要两年时间完成 对100名受试者进行评估（每年50名）。 最终目标是 为流行病学研究和临床试验的研究人员提供指南 关于评估PA和健身的各种程序的相对优点， 在可靠性、有效性、实用性、成本和实施方面 要求.

The research proposed compares several methods of evaluating level of habitual physical activity (PA) and fitness in athletic and 100 nonathletic men and women age, 20 to 59. This research will determine the reliability and validity of a variety of evaluation tools for assessing PA and fitness. PA will be assessed repeatedly by the comprehensive Minnesota Leisure Time PA questionnaire and shorter questionnaires; the results of these questionnaires will be compared with those from 24 hour PA and food diary records and mechanical motion detectors (Caltrac). The PA and diet diary and the motion detectors data will be collected 21 times per year (3 times for each day of the week). Physical fitness will be assessed by treadmill exercise testing using the Bruce Protocol and the Beckman Metabolic Measurement Cart for determining maximal oxygen uptak (VO2 max). The results will be compared with estimated VO2 max. values obtained with simpler submaximal step and bicycle ergometer tests; and anthrophometric measurements, including relative body weight, multiple skinfold thickness, body circumferences, and underwater weighing determination of body density and percent body fat. Two years will be required to complete the assessments of the 100 subjects (50 per year). The ultimate goal is to provide researchers in epidemiologic studies and clinical trials guidelines about the relative merit of various procedures for assessing PA and fitness in terms of reliability, validity, practicality, costs and implementation requirements.