Department of Physical Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, PA 15260, USA.
Phys Ther. 2011 Dec;91(12):1752-65. doi: 10.2522/ptj.20100269. Epub 2011 Oct 14.
Little is known regarding how impairment-based exercises may improve performance of specific functional tasks in people with knee osteoarthritis (OA).
The purpose of this study was to compare the probability that participation in an impairment-based exercise program or the same impairment-based program supplemented with agility and perturbation training will improve patient-reported function on specific functional tasks.
This study was a secondary analysis of data from a randomized clinical trial.
The study was conducted in the outpatient physical therapy clinic of a large, university-based health center.
One hundred eighty-three people with knee OA (122 women, 61 men) participated.
Participants were randomly assigned to either a group that received agility and perturbation training with standard exercise therapy or a group that received only the standard exercise.
Specific functional items were taken from the physical function subscale of the Western Ontario and McMasters Universities Osteoarthritis Index, the Lower Extremity Function Scale, and the Activities of Daily Living Scale of the Knee Outcome Survey.
The probability of self-reported improvement in a variety of specific functional tasks was low following participation in either of the exercise programs. When only participants with moderate to severe difficulty performing specific functional tasks were considered in the analysis, the probability of success improved but was still limited.
The results are generalizable only to self-reported assessment of performance of specific functional tasks.
Impairment-based exercise may not be enough to make substantial improvement in performance of specific functional tasks. Task-specific exercise approaches need to be explored for people with knee OA.
对于基于损伤的锻炼如何改善膝骨关节炎（OA）患者特定功能任务的表现，人们知之甚少。
本研究的目的是比较参与基于损伤的锻炼计划或相同的基于损伤的计划辅以敏捷性和扰动训练是否会提高患者对特定功能任务的报告功能的可能性。
这是一项随机临床试验数据的二次分析。
该研究在一所大型大学健康中心的门诊物理治疗诊所进行。
183 名膝骨关节炎患者（122 名女性，61 名男性）参与了研究。
参与者被随机分配到接受敏捷性和扰动训练与标准运动疗法的组或仅接受标准运动疗法的组。
特定功能项目取自 Western Ontario 和 McMaster 大学骨关节炎指数的物理功能子量表、下肢功能量表和膝关节结局调查的日常生活活动量表。
无论是参加哪种运动方案，自我报告的各种特定功能任务的改善概率都很低。当仅考虑在分析中具有中度至重度特定功能任务困难的参与者时，成功的可能性有所提高，但仍然有限。
结果仅可推广到特定功能任务表现的自我报告评估。
基于损伤的锻炼可能不足以显著改善特定功能任务的表现。需要探索针对膝骨关节炎患者的特定于任务的运动方法。
