Grazielle Cordeiro Aguiar
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Samira Gonçalves Rocha
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Gisele Aparecida da Silva Rezende
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Marcela Rêgo do Nascimento
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Paula Luciana Scalzo
Abstract Introduction: Osteoarthritis (OA), the most common form of arthritis, is considered the main cause of pain and disability in the elderly. Objective: To evaluate the effect of systematic muscle strength training on functional performance and quality of life in individuals with knee OA. Methods: Subjects with knee OA (n = 27, 46 - 76 years) completed the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Medical Outcomes Short-Form 36-item Health Survey (SF-36), and visual analog scale (VAS) questionnaires, musculoskeletal assessments, and 10-repetition maximum and timed 10-meter walk tests both before and after training. The training consisted of an exercise resistance program and stretches for 12 weeks (three sessions of 80 each per week). Results: Twenty-two subjects completed the training. Reduced overall scores and WOMAC physical function indicated improved functional performance (p < 0.001) as well as increased gait speed (p < 0.001). The perception of pain decreased after training, as evidenced by the VAS, WOMAC pain domain, and SF-36 scores (p < 0.001). Quality of life improvements occurred primarily in the areas of pain, functional capacity, and SF-36 physical aspects. No change in body mass index was noted (p = 0.93). Conclusion: Our results indicate that the combination of resistance training for the quadriceps, gluteus, and abdominal muscles could be a viable alternative to improving functionality and quality of life in patients with knee OA. However, more studies are necessary to confirm our findings.
Effects of resistance training in individuals with knee osteoarthritis