How many steps/day are enough? For older adults and special populations.
How many steps/day are enough? For older adults and special populations.
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每天几个步骤足够？适用于老年人和特殊人群。
DOI：
10.1186/1479-5868-8-80
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发表时间：
2011-07-28
期刊：
影响因子：
--
通讯作者：
Blair SN
中科院分区：
文献类型：
--
作者：
Tudor-Locke C;Craig CL;Aoyagi Y;Bell RC;Croteau KA;De Bourdeaudhuij I;Ewald B;Gardner AW;Hatano Y;Lutes LD;Matsudo SM;Ramirez-Marrero FA;Rogers LQ;Rowe DA;Schmidt MD;Tully MA;Blair SN
老年人和特殊人群（患有残疾和/或慢性疾病，可能限制活动和/或身体耐力）可以从练习更积极的生活方式中受益，通常是通过增加流动活动。计步器（加速计和计步器）提供了监测日常流动活动的机会；然而，目前尚不清楚公共卫生指南如何以每天的步数为单位进行适当的翻译。因此，本综述的目的是将公共卫生建议转化为每天的步数。规范数据表明：1)健康老年人平均步行2000 - 9000步/天，2)特殊人群平均步行1200 - 8800步/天。在老年人和特殊人群中，基于计步器的干预分别导致大约775步/天（或效应量为0.26）和2215步/天（或效应量为0.67）的加权增加。目前还没有证据表明老年人在这个时候有中等强度的节奏（即步数/分钟）。然而，使用100步/分钟的成人节奏来确定绝对定义的中等强度（即3 METs）的下限，并将其乘以30分钟，可以得到3,000步的合理启发式（即指导）值。然而，这种节奏在一些虚弱/患病人群中可能无法实现。无论如何，要真正转化公共卫生指南，这些步骤应该在日常生活过程中进行的活动之上，至少以中等强度累积至少10分钟，每周至少加起来150分钟。考虑到每天5000步/天的背景（对于一些老年人和/或特殊人群来说，这可能太高了），计算出的换算结果约为8000步，其中包括达到30分钟中高强度身体活动（MVPA）的目标，如果平均一周，则约为7100步/天。直接测量并包括这些背景活动，证据表明，在健康老年人中，除了习惯性的日常活动之外，每天积累30分钟的MVPA相当于每天走大约7,000-10,000步。那些患有残疾和/或慢性疾病（限制行动能力和/或身体耐力）的人显示出较低的背景每日活动水平，这将影响建议的全天体力活动估计值。
Older adults and special populations (living with disability and/or chronic illness that may limit mobility and/or physical endurance) can benefit from practicing a more physically active lifestyle, typically by increasing ambulatory activity. Step counting devices (accelerometers and pedometers) offer an opportunity to monitor daily ambulatory activity; however, an appropriate translation of public health guidelines in terms of steps/day is unknown. Therefore this review was conducted to translate public health recommendations in terms of steps/day. Normative data indicates that 1) healthy older adults average 2,000-9,000 steps/day, and 2) special populations average 1,200-8,800 steps/day. Pedometer-based interventions in older adults and special populations elicit a weighted increase of approximately 775 steps/day (or an effect size of 0.26) and 2,215 steps/day (or an effect size of 0.67), respectively. There is no evidence to inform a moderate intensity cadence (i.e., steps/minute) in older adults at this time. However, using the adult cadence of 100 steps/minute to demark the lower end of an absolutely-defined moderate intensity (i.e., 3 METs), and multiplying this by 30 minutes produces a reasonable heuristic (i.e., guiding) value of 3,000 steps. However, this cadence may be unattainable in some frail/diseased populations. Regardless, to truly translate public health guidelines, these steps should be taken over and above activities performed in the course of daily living, be of at least moderate intensity accumulated in minimally 10 minute bouts, and add up to at least 150 minutes over the week. Considering a daily background of 5,000 steps/day (which may actually be too high for some older adults and/or special populations), a computed translation approximates 8,000 steps on days that include a target of achieving 30 minutes of moderate-to-vigorous physical activity (MVPA), and approximately 7,100 steps/day if averaged over a week. Measured directly and including these background activities, the evidence suggests that 30 minutes of daily MVPA accumulated in addition to habitual daily activities in healthy older adults is equivalent to taking approximately 7,000-10,000 steps/day. Those living with disability and/or chronic illness (that limits mobility and or/physical endurance) display lower levels of background daily activity, and this will affect whole-day estimates of recommended physical activity.
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DOI：
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发表时间：
2009-11-10
期刊：
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