Tudor-Locke Catrine, Hatano Yoshiro, Pangrazi Robert P, Kang Minsoo
Walking Behavior Laboratory, Pennington Biomedical Research Center, Baton Rogue, LA 70808, USA.
Med Sci Sports Exerc. 2008 Jul;40(7 Suppl):S537-43. doi: 10.1249/MSS.0b013e31817c7133.
With continued widespread acceptance of pedometers by both researchers and practitioners, evidence-based steps/day indices are needed to facilitate measurement and motivation applications of physical activity (PA) in public health. Therefore, the purpose of this article is to reprise, update, and extend the current understanding of dose-response relationships in terms of pedometer-determined PA. Any pedometer-based PA guideline presumes an accurate and standardized measure of steps; at this time, industry standards establishing quality control of instrumentation is limited to Japan where public health pedometer applications and the 10,000 steps.d slogan are traceable to the 1960s. Adult public health guidelines promote > or =30 min of at least moderate-intensity daily PA, and this translates to 3000-4000 steps if they are: 1) at least moderate intensity (i.e., > or =100 steps.min); 2) accumulated in at least 10-min bouts; and 3) taken over and above some minimal level of PA (i.e., number of daily steps) below which individuals might be classified as sedentary. A zone-based hierarchy is useful for both measurement and motivation purposes in adults: 1) <5000 steps.d (sedentary); 2) 5000-7499 steps.d (low active); 3) 7500-9999 steps.d (somewhat active); 4) > or =10,000-12,499 steps.d (active); and 5) > or =12,500 steps.d (highly active). Evidence to support youth-specific cutoff points is emerging. Criterion-referenced approaches based on selected health outcomes present the potential for advancing evidence-based steps/day standards in both adults and children from a measurement perspective. A tradeoff that needs to be acknowledged and considered is the impact on motivation when evidence-based cutoff points are interpreted by individuals as unattainable goals.
随着研究人员和从业者对计步器的持续广泛接受，需要基于证据的每日步数指标来促进公共卫生领域身体活动（PA）的测量和激励应用。因此，本文的目的是重新审视、更新并扩展目前对计步器测定的PA剂量反应关系的理解。任何基于计步器的PA指南都假定步数测量准确且标准化；目前，建立仪器质量控制的行业标准仅限于日本，在那里公共卫生计步器应用和“一万步口号”可追溯到20世纪60年代。成人公共卫生指南提倡每天至少进行30分钟的中等强度PA，如果满足以下条件，则相当于3000 - 4000步：1）至少为中等强度（即≥100步/分钟）；2）以至少10分钟的时间段累积；3）在一定的PA最低水平之上进行（即每日步数），低于该水平个体可能被归类为久坐不动。基于区域的分级对于成人的测量和激励目的都很有用：1）<5000步/天（久坐不动）；2）5000 - 7499步/天（低活动量）；3）7500 - 9999步/天（有些活跃）；4）≥10000 - 12499步/天（活跃）；5）≥12500步/天（高度活跃）。支持针对青少年的特定临界点的证据正在出现。基于选定健康结果的标准参照方法从测量角度为推进成人和儿童基于证据的每日步数标准提供了潜力。需要认识和考虑的一个权衡是，当基于证据的临界点被个体解释为无法实现的目标时，对激励的影响。
