Shiba Sumiko, Shiba Akiko, Hatada Atsutoshi
Department of Physical Therapy, Konan Women's University, Kobe City 658-0001, Japan.
Department of Nursing, Akisaki Clinic, Wakayama City 640-0002, Japan.
J Aging Res. 2020 Oct 20;2020:5093528. doi: 10.1155/2020/5093528. eCollection 2020.
Peripheral artery disease (PAD) is a significant prognostic marker of poor long-term survival due to limited physical activity associated with various functional problems, such as intermittent claudication. A physically active lifestyle has the potential to modify peripheral artery risk factors and promote general health. While low daily physical activity levels have been recognized in the population of PAD, the exact level has yet to be quantified due to lack of research. The aim of the present study was to compare physical activity level (PAL) and time spent at activities of different intensity levels between patients with PAD and healthy individuals. The study subjects were 10 patients with PAD and 10 age-matched healthy control subjects. We measured the time spent at light, moderate, or vigorous physical activity using triaxial accelerometer and calculated PAL. Intermittent claudication onset distance and maximum walking distance were defined as the distance walked at which the subject first reported leg pain and the distance at which the subject was unable to continue walking because of leg pain, respectively.
Our results showed (i) lower PAL in patients with PAD compared with the controls; (ii) while there was no significant difference in the high-intensity activity between the two groups, the light- and moderate-intensity activities of the PAD group were significantly lower than the controls, the time spent at moderate-intensity activity was approximately 50% less; and (iii) among patients with PAD, low PAL did not correlate directly with intermittent claudication.
PAD patients limit the amount of their physical activity, especially light and moderate intensities. Our study highlights the importance of spending more time walking in daily life.
外周动脉疾病（PAD）是长期生存预后不良的重要指标，因为其与各种功能问题（如间歇性跛行）相关的身体活动受限。积极的生活方式有可能改变外周动脉危险因素并促进整体健康。虽然PAD患者群体中日常身体活动水平较低已得到公认，但由于缺乏研究，确切水平尚未量化。本研究的目的是比较PAD患者与健康个体之间的身体活动水平（PAL）以及在不同强度活动上花费的时间。研究对象为10例PAD患者和10例年龄匹配的健康对照者。我们使用三轴加速度计测量了在轻度、中度或剧烈身体活动上花费的时间，并计算了PAL。间歇性跛行起始距离和最大步行距离分别定义为受试者首次报告腿痛时行走的距离以及受试者因腿痛无法继续行走时的距离。
我们的结果显示：（i）与对照组相比，PAD患者的PAL较低；（ii）虽然两组之间高强度活动无显著差异，但PAD组的轻度和中度强度活动明显低于对照组，在中度强度活动上花费的时间减少了约50%；（iii）在PAD患者中，低PAL与间歇性跛行无直接相关性。
PAD患者限制了其身体活动量，尤其是轻度和中度强度的活动。我们的研究强调了在日常生活中增加步行时间的重要性。
