Impact of Individual Factors on Exercise Dose During a Walking Intervention in People With Stroke.

IF 2.6 3区 医学 Q2 CLINICAL NEUROLOGY
Kiersten M McCartney, Ryan T Pohlig, Duncan Thibodeau Tulimieri, Pierce Boyne, Susanne M Morton, Darcy S Reisman
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Abstract

Background and objective: There has been a substantial increase in the number of studies demonstrating improvements in walking capacity in people with chronic stroke following moderate-to-high intensity walking exercise interventions. Yet, there is significant variability in response to these interventions. This is likely due to the heterogeneity in this population and the variability in the exercise dose parameters actually attained within these walking interventions. Exercise prescription can be optimized by understanding how individual variables impact walking exercise dose. This study leveraged a large, clinical dataset to classify people with chronic stroke into homogeneous groups (called classes) and compare classes on the walking exercise dose achieved in a walking intervention.

Methods: One hundred sixty-nine people with chronic (>6-Months) stroke completed clinical evaluations and a 12-week high-intensity treadmill intervention. Baseline measures of walking capacity, physical health, and psychosocial factors were used in a latent variable mixture model to assess if latent, homogeneous classes existed within the dataset. Objective criteria determined the optimal number of classes, which were compared to the walking exercise dose attained across the intervention.

Results: Four homogeneous classes were distinguished by differences in baseline walking capacity, steps-per-day, comorbidity burden, and balance self-efficacy. Despite clear "clinical profiles" of people with chronic stroke, these classes did not differ on the walking exercise dose attained.

Discussion and conclusions: Prior literature and clinical intuition suggest individuals with lower baseline walking capacity, physical health, and self-efficacy are less likely to tolerate high-intensity exercise, however our results demonstrate this is not true for people with chronic stroke.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content 1 available at: http://links.lww.com/JNPT/A524.

中风患者步行干预期间个体因素对运动剂量的影响
背景和目的:越来越多的研究表明,在中高强度的步行运动干预后,慢性中风患者的步行能力得到了改善。然而,对这些干预措施的反应存在显著差异。这可能是由于该人群的异质性以及在这些步行干预中实际获得的运动剂量参数的可变性。通过了解个体变量对步行运动剂量的影响,可以优化运动处方。这项研究利用了一个大型的临床数据集,将慢性中风患者分为同质组(称为类),并比较了在步行干预中达到的步行运动剂量。方法:169例慢性中风患者(6个月)完成临床评估和12周高强度跑步机干预。在潜在变量混合模型中使用行走能力、身体健康和心理社会因素的基线测量来评估数据集中是否存在潜在的、均匀的类别。客观标准确定了最佳班数,并将其与干预期间达到的步行运动剂量进行比较。结果:4个同质组别在基线步行能力、每日步数、合并症负担和平衡自我效能方面存在差异。尽管慢性中风患者有明确的“临床概况”,但这些班级在达到的步行运动剂量上并没有差异。讨论和结论:先前的文献和临床直觉表明,基线行走能力、身体健康和自我效能较低的个体不太可能耐受高强度运动,但我们的研究结果表明,慢性中风患者并非如此。视频摘要可获得作者的更多见解(参见视频,补充数字内容1可在:http://links.lww.com/JNPT/A524。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Neurologic Physical Therapy
Journal of Neurologic Physical Therapy CLINICAL NEUROLOGY-REHABILITATION
CiteScore
5.70
自引率
2.60%
发文量
63
审稿时长
>12 weeks
期刊介绍: The Journal of Neurologic Physical Therapy (JNPT) is an indexed resource for dissemination of research-based evidence related to neurologic physical therapy intervention. High standards of quality are maintained through a rigorous, double-blinded, peer-review process and adherence to standards recommended by the International Committee of Medical Journal Editors. With an international editorial board made up of preeminent researchers and clinicians, JNPT publishes articles of global relevance for examination, evaluation, prognosis, intervention, and outcomes for individuals with movement deficits due to neurologic conditions. Through systematic reviews, research articles, case studies, and clinical perspectives, JNPT promotes the integration of evidence into theory, education, research, and practice of neurologic physical therapy, spanning the continuum from pathophysiology to societal participation.
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