Promoting physical activity for elders with compromised function: the lifestyle interventions and independence for elders (LIFE) study physical activity intervention.
Promoting physical activity for elders with compromised function: the lifestyle interventions and independence for elders (LIFE) study physical activity intervention.
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DOI：
10.2147/cia.s49737
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发表时间：
2013
影响因子：
3.6
通讯作者：
LIFE Study Investigator Group
中科院分区：
文献类型：
--
作者：
Rejeski WJ;Axtell R;Fielding R;Katula J;King AC;Manini TM;Marsh AP;Pahor M;Rego A;Tudor-Locke C;Newman M;Walkup MP;Miller ME;LIFE Study Investigator Group
老年人生活方式干预和独立性（LIFE）研究是一项III期随机对照临床试验（Clinicaltrials.gov标识符：NCT 01072500），将提供有关身体活动（PA）对身体功能受损的老年人（70-89岁）严重移动性残疾影响的明确证据。本文介绍了在提供的LIFE研究PA干预的方法，提供洞察我们如何促进依从性和监测治疗的保真度。在试验开始时，参与者的动机和自我感知的数据与运动训练期间PA模式的加速度计数据一起沿着呈现。在培训开始之前，31.4%的参与者注意到与能够满足该计划的要求略有冲突，6.4%表示冲突的程度将是中等的。在PA训练期间收集的加速度计数据显示，平均强度-男性为1，555计数/分钟，女性为1，237计数/分钟-远低于用于将运动分类为中等强度或更高强度的截止点。此外，相当大的子组需要一个或多个休息站。这些数据表明，这是不可行的，有一个单一的运动处方老年人功能受损。此外，什么是“适度”运动或适当的工作量的概念取决于每个人的身体能力和实际执行特定处方时的舒适/稳定水平。
The Lifestyle Interventions and Independence for Elders (LIFE) Study is a Phase III randomized controlled clinical trial (Clinicaltrials.gov identifier: NCT01072500) that will provide definitive evidence regarding the effect of physical activity (PA) on major mobility disability in older adults (70–89 years old) who have compromised physical function. This paper describes the methods employed in the delivery of the LIFE Study PA intervention, providing insight into how we promoted adherence and monitored the fidelity of treatment. Data are presented on participants’ motives and self-perceptions at the onset of the trial along with accelerometry data on patterns of PA during exercise training. Prior to the onset of training, 31.4% of participants noted slight conflict with being able to meet the demands of the program and 6.4% indicated that the degree of conflict would be moderate. Accelerometry data collected during PA training revealed that the average intensity – 1,555 counts/minute for men and 1,237 counts/minute for women – was well below the cutoff point used to classify exercise as being of moderate intensity or higher for adults. Also, a sizable subgroup required one or more rest stops. These data illustrate that it is not feasible to have a single exercise prescription for older adults with compromised function. Moreover, the concept of what constitutes “moderate” exercise or an appropriate volume of work is dictated by the physical capacities of each individual and the level of comfort/stability in actually executing a specific prescription.