A home-based pedometer-driven walking program to increase physical activity in older adults with osteoarthritis of the knee: A preliminary study
A home-based pedometer-driven walking program to increase physical activity in older adults with osteoarthritis of the knee: A preliminary study
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DOI：
10.1046/j.1532-5415.2003.51113.x
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发表时间：
2003-03-01
影响因子：
6.3
通讯作者：
Metter, EJ
中科院分区：
文献类型：
--
作者：
Talbot, LA;Gaines, JM;Metter, EJ
目的：确定与单纯的关节炎自我管理教育(EDU)相比，基于家庭计步器驱动的步行计划(Walk+)是否能提高患有膝骨性关节炎(OA)的老年人的体力活动、肌肉力量和功能表现。设计：随机二乘三(按时间分组)设计，参与者分配到Walk+组(n=17，平均年龄+/-标准差=69.6+/-6.7)或EDU组(n=17，年龄=70.8+/-4.7)。设定：位于巴尔的摩-华盛顿地区的社区。伙伴：34名60岁及以上的社区成年人，有症状的膝骨性关节炎和自我报告的功能障碍。干预：两组都接受了12周的关节炎自我管理计划，并继续跟踪12周。此外，Walk+组还接受了使用计步器的个体化指导，目标是将他们的步数增加30%。测量结果：在控制了年龄后，每天的步行次数(每天的步数和总的活动向量大小，通过计步器和Tritrac-R3D加速度计测量)，股四头肌力量(等长的峰值扭矩)，以及功能操作任务(100英尺步行-转弯行走，定时爬楼梯，定时上升椅子，疼痛状态)显示出显著的逐组交互作用(P=.04)。从基线到训练结束，Walk+组的每日步数增加了23%，EDU组减少了15%。尽管Walk+组的步数增加了，但总活动向量保持不变，这表明步态更有效率。在正常步速步行-转身-步行中，Walk+组明显快于EDU组(P=0.04)。干预后，Walk+组的等长力量增加了21%，而EDU组的等长力量减少了3.5%。结论：在有症状的膝骨性关节炎的老年人中，Walk+似乎增加了步行能力，改善了肌肉力量和步行能力。使用以家庭为基础的计步器驱动的程序来增加这一人群的体力活动、力量和功能值得进一步研究。
OBJECTIVES: To determine whether a home-based pedometer-driven walking program with arthritis self-management education (Walk +) would increase physical activity, muscle strength, and functional performance in older adults with osteoarthritis (OA) of the knee as opposed to arthritis self-management education alone (EDU).DESIGN: A randomized two-by-three (group-by-time) design with participants assigned to Walk + (n = 17, mean age +/- standard deviation = 69.6 +/- 6.7) or EDU (n = 17, age = 70.8 +/- 4.7).SETTING: Community located in the Baltimore-Washington area.PARTICIPANTS: Thirty-four community-dwelling adults, aged 60 and older with symptomatic knee OA and self-reported functional impairment.INTERVENTIONS: Both groups received 12 hours of the Arthritis Self-Management program over 12 weeks and were followed for an additional 12 weeks. In addition, the Walk + group received individualized instruction in the use of a pedometer, with the goal of increasing their step count by 30% of their baseline step count.MEASUREMENTS: The outcome measures were physical activity (daily step counts and total activity vector magnitude as measured by a pedometer and Tritrac-R3D accelerometer), quadriceps femoris strength (isometric peak torque), and functional performance tasks (100-foot walk-turn-walk, timed stair climb, timed chair rise, and pain status).RESULTS: Daily steps walked showed a significant group-by-time interaction (P = .04) after controlling for age. From baseline to completion of training, a 23% increase in daily steps occurred in the Walk + group and a 15% decrease in the EDU group. Although steps increased in the Walk + group, total activity vector magnitude was maintained, suggesting a more efficient gait. The Walk + group became quicker than the EDU group in the normal-pace walk-turn-walk (P = .04). An isometric strength gain of 21% postintervention was seen in the Walk + group, compared with a loss of 3.5% in the EDU group.CONCLUSION: In older adults with symptomatic knee OA, Walk + appears to increase walking, with improvements in muscle strength and walking performance. The use of a home-based pedometer-driven program to increase physical activity, strength, and function in this population warrants further research.