Article type: Research Article
Authors: Hoglund, Lisa T.a; * | Lockard, Margery A.b | Barbe, Mary F.c | Hillstrom, Howard J.d | Song, Jinsupe | Reinus, William R.f | Barr-Gillespie, Ann E.g
Affiliations: [a] Department of Physical Therapy, Samson College of Health Sciences, University of the Sciences, Philadelphia, PA, USA | [b] Health Sciences Department, Drexel University, Philadelphia, PA, USA | [c] Department of Anatomy and Cell Biology, School of Medicine, Temple University, Philadelphia, PA, USA | [d] Leon Root, MD Motion Analysis Laboratory, Hospital for Special Surgery, New York, NY, USA | [e] Gait Study Center, School of Podiatric Medicine, Temple University, Philadelphia, PA, USA | [f] Musculoskeletal and Trauma Radiology, School of Medicine, Temple University, Philadelphia, PA, USA | [g] College of Health Professions, Pacific University, Hillsboro, OR, USA
Correspondence:
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Corresponding author: Lisa T. Hoglund, University of the Sciences, 600 South 43rd Street, Philadelphia, PA 19104-4495, USA. Tel.: +1 2155968541; Fax: +1 2158953121; E-mail: l.hoglund@usciences.edu
Abstract: Background:Patellofemoral osteoarthritis (PFOA) is associated with pain and decreased self-reported function. The impact of PFOA on actual physical performance is currently unknown. Objective:To investigate the impact of PFOA on physical performance and pain. Methods:Eight participants aged 40–65 years with bilateral, symptomatic, radiographic PFOA and 7 age- and gender-matched pain-free control participants without radiographic PFOA were studied. Physical performance was measured with the Timed-Up-and-Go (TUG) and 50-foot Fast-Paced-Walk (FPW) tests. Dependent variables included time to complete the TUG and FPW; pretest-posttest change in pain intensity (TUG and FPW); and self-reports of perceived knee pain, stiffness, and physical function. Data were analyzed with nonparametric statistics. Results:The PFOA group TUG time was longer than the control group (p=0.01). No difference between groups was found for FPW time. Pretest-posttest pain increased for the TUG and FPW in PFOA participants (p<0.05). The PFOA group reported greater knee pain, stiffness, and less physical function than controls (previous 48 hours) (p<0.01). Conclusions:Symptomatic, radiographic PFOA is associated with increased pain during the TUG and FPW tests and longer time required to complete the TUG. The TUG may be a more sensitive test of physical performance in PFOA.
Keywords: Osteoarthritis, patellofemoral, knee, physical performance, pain measurement
DOI: 10.3233/BMR-140525
Journal: Journal of Back and Musculoskeletal Rehabilitation, vol. 28, no. 2, pp. 335-342, 2015
