Mohammed Alkatan1, Jeffrey R Baker1, Daniel R Machin1, Wonil Park1, Amanda S Akkari1, Evan P Pasha1, Hirofumi Tanaka2. 1. From the Cardiovascular Aging Research Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA.M. Alkatan, PhD; J.R. Baker, MS; D.R. Machin, PhD; W. Park, MS; A.S. Akkari, BS; E.P. Pasha, MS; H. Tanaka, PhD, Cardiovascular Aging Research Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin. 2. From the Cardiovascular Aging Research Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA.M. Alkatan, PhD; J.R. Baker, MS; D.R. Machin, PhD; W. Park, MS; A.S. Akkari, BS; E.P. Pasha, MS; H. Tanaka, PhD, Cardiovascular Aging Research Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin. htanaka@austin.utexas.edu.
Abstract
OBJECTIVE: Arthritis and its associated joint pain act as significant barriers for adults attempting to perform land-based physical activity. Swimming can be an ideal form of exercise for patients with arthritis. Yet there is no information on the efficacy of regular swimming exercise involving patients with arthritis. The effect of a swimming exercise intervention on joint pain, stiffness, and physical function was evaluated in patients with osteoarthritis (OA). METHODS: Using a randomized study design, 48 sedentary middle-aged and older adults with OA underwent 3 months of eitherswimming or cycling exercise training. Supervised exercise training was performed for 45 min/day, 3 days/week at 60-70% heart rate reserve for 12 weeks. The Western Ontario and McMaster Universities Arthritis Index was used to measure joint pain, stiffness, and physical limitation. RESULTS: After the exercise interventions, there were significant reductions in joint pain, stiffness, and physical limitation accompanied by increases in quality of life in both groups (all p < 0.05). Functional capacity as assessed by maximal handgrip strength, isokinetic knee extension and flexion power (15-30% increases), and the distance covered in the 6-min walk test increased (all p < 0.05) in both exercise groups. No differences were observed in the magnitude of improvements between swimming and cycling training. CONCLUSION:Regular swimming exercise reduced joint pain and stiffness associated with OA and improved muscle strength and functional capacity in middle-aged and older adults with OA. Additionally, the benefits of swimming exercise were similar to the more frequently prescribed land-based cycling training. TRIAL REGISTRATION: clinicaltrials.gov NCT01836380.
RCT Entities:
OBJECTIVE:Arthritis and its associated joint pain act as significant barriers for adults attempting to perform land-based physical activity. Swimming can be an ideal form of exercise for patients with arthritis. Yet there is no information on the efficacy of regular swimming exercise involving patients with arthritis. The effect of a swimming exercise intervention on joint pain, stiffness, and physical function was evaluated in patients with osteoarthritis (OA). METHODS: Using a randomized study design, 48 sedentary middle-aged and older adults with OA underwent 3 months of either swimming or cycling exercise training. Supervised exercise training was performed for 45 min/day, 3 days/week at 60-70% heart rate reserve for 12 weeks. The Western Ontario and McMaster Universities Arthritis Index was used to measure joint pain, stiffness, and physical limitation. RESULTS: After the exercise interventions, there were significant reductions in joint pain, stiffness, and physical limitation accompanied by increases in quality of life in both groups (all p < 0.05). Functional capacity as assessed by maximal handgrip strength, isokinetic knee extension and flexion power (15-30% increases), and the distance covered in the 6-min walk test increased (all p < 0.05) in both exercise groups. No differences were observed in the magnitude of improvements between swimming and cycling training. CONCLUSION: Regular swimming exercise reduced joint pain and stiffness associated with OA and improved muscle strength and functional capacity in middle-aged and older adults with OA. Additionally, the benefits of swimming exercise were similar to the more frequently prescribed land-based cycling training. TRIAL REGISTRATION: clinicaltrials.gov NCT01836380.
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