Ambulatory activity intensity profiles, fitness, and fatigue in chronic stroke
Ambulatory activity intensity profiles, fitness, and fatigue in chronic stroke
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DOI：
10.1310/tsr1402-5
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发表时间：
2007-03-01
影响因子：
2.2
通讯作者：
Macko, Richard F.
中科院分区：
文献类型：
--
作者：
Michael, Kathleen;Macko, Richard F.
目的：本研究的目的是描述家庭和社区的步行活动概况和他们的关系，疲劳和心血管健康的样本男性和女性慢性轻偏瘫中风。方法：我们对79名慢性轻偏瘫卒中患者的社区门诊活动特征进行了量化，包括步数和强度，沿着心血管健康和疲劳程度。结果如下：通过每日步行活动监测，参与者表现出极低的步数（1389 +/- 797步/天），并且在高强度下几乎没有步行活动（78 +/- 168步/天，速率>= 30步/分钟）。平均高强度活动少于3分钟/天。平均VO 2峰值为13.02 +/- 4.26 mL/kg/min，与深度需氧去适应一致。总的、低强度和高强度的步行活动与VO 2峰值相关。平均疲劳严重度为3.28 +/- 1.36，量表为7.00，42%的样本报告重度疲劳。疲劳程度与步行活动或健身措施之间没有统计学显著相关性。结论：我们的研究结果表明，台阶活动强度与心血管健康密切相关，这证明了建立有氧条件反射的康复干预可以影响日常活动的假设。面临的挑战是要理解中风后的行走行为的特点，并利用这些信息来整合运动干预和行为成分，成功地将结构化的活动转化为家庭和社区的日常活动。
Purpose: The purpose of this study was to describe household and community ambulatory activity profiles and their relationship to fatigue and cardiovascular fitness in a sample of men and women with chronic hemiparetic stroke. Method: We quantified community-based ambulatory activity profiles in terms of step counts and intensity, along with cardiovascular fitness and fatigue severity, in a convenience sample of 79 men and women with chronic hemiparetic stroke. Results: As captured by daily step activity monitoring, participants demonstrated extremely low step counts (1389 +/- 797 steps/day), and almost no step activity at high intensity (78 +/- 168 steps/day at a rate of >= 30 steps/minute). Mean high intensity activity constituted less than 3 minutes/day. The mean VO2 peak was 13.02 +/- 4.26 mL/kg/min, consistent with profound aerobic deconditioning. Total, low, and high intensity ambulatory activity were associated with VO2 peak. Mean fatigue severity was 3.28 +/- 1.36 on a scale of 7.00, with 42% of the sample reporting severe fatigue. There were no statistically significant correlations between fatigue severity and ambulatory activity or fitness measures. Conclusion: Our results show that step activity intensity is strongly associated with cardiovascular fitness, lending credence to the hypothesis that rehabilitation interventions that build aerobic conditioning can influence daily activity. The challenge is to appreciate the features of ambulatory behavior after stroke and to use this information to integrate both exercise interventions and behavioral components into the successful translation of structured activities into home and community routines.