Arthritis & Rheumatism, Volume 63,
November 2011 Abstract Supplement

Abstracts of the American College of
Rheumatology/Association of Rheumatology Health Professionals
Annual Scientific Meeting
Chicago, Illinois November 4-9, 2011.


Sensorimotor Training Versus Resistance Training in Patients with Knee Osteoarthritis.

Gomiero1,  Aline B., Trevisani2,  Virginia M., Kayo2,  Andrea H., Peccin3,  Maria Stella, Abraao4,  Marcelo

Federal University of Sao Paulo, São Paulo, Brazil
Federal University of São Paulo, São Paulo Brazil, Brazil
Federal University of São Paulo, São Paulo, Brazil
Federal University of São Paulo, Brazil

Background/Purpose:

People with knee osteoarthritis (OA) have functional instability and defective neuromuscular function, it was recently suggested that sensorimotor exercises are important and may be needed to improve the effectiveness of training programs for these patients. This study objective was to compare the effectiveness of a supervised resistance muscular training (RT) versus sensorimotor training (SMT) for patients with Knee OA, on decrease of pain and functional improvement.

Methods:

Randomized single blind clinical trial with 96 patients, 50–75 years old, with knee OA according to ACR criteria, were randomized into one of 3 groups. SMT group (n=32), RT group (n=32), and control group (CG n=32) for a 16-weeks intervention. The intervention for the RT group consisted in orientation plus quadriceps and hamstring strength training followed by stretching of this muscles. The SMT group consisted in orientation plus stability and agility training followed by stretching, and the CG received the same orientations, warm-up and stretching exercises made by the interventional groups without the intervention. Evaluations were made before (T0) and after intervention (T16). Outcomes measured included: Visual Analogue Scale of pain (VAS); electromyographic analysis of quadriceps muscle (EMG); isometric quadriceps strength with dynamometer (miotec medical supplies) and Timed-Up-Go test (TUG). Patients also completed 2 self-report measures of physical function and disability; the Medical Outcomes Study – Short Form (SF-36) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Data were analyzed using repeated measures ANOVA with Bonferroni corrections.

Results:

There were no significant differences in age, gender distribution, height, or weight among groups (p >.05). There were significant differences between the two time points in RT group for the variable WOMAC p=0.004 and SF-36 subscales physical functioning p<0.001, vitality p=0.001 and role emotional p<0.001. We also observed significant improvement on quadriceps strength on RT group p=0.006 and on SMT group p<0.001. There were no differences among the groups or between the two time points for the variables VAS, EMG, TUG, and for SF-36 sub-scales role-physical and mental health.

Conclusion:

Although our results showed no improvements on function and pain after resistance training or sensorimotor training in patients with knee osteoarthritis, experts recognize the importance of mechanical loading for maintaining healthy cartilage. Furthermore, more studies are necessary to demonstrate changes in performance-based physical function after a functional intervention.

To cite this abstract, please use the following information:
Gomiero, Aline B., Trevisani, Virginia M., Kayo, Andrea H., Peccin, Maria Stella, Abraao, Marcelo; Sensorimotor Training Versus Resistance Training in Patients with Knee Osteoarthritis. [abstract]. Arthritis Rheum 2011;63 Suppl 10 :1562
DOI:

Abstract Supplement

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