Abstract
ObjectiveTo determine the benefits of aquatic physical therapy as a rehabilitation strategy for knee osteoarthritis patients.MethodsElectronic databases systematically searched up to July 2021.Results580 RCTs were selected. A total of thirteen studies comprising 883 participants were included in the study. For pain, meta-analyses showed that aquatic physical therapy is associated with a significant change in Western Ontario and McMaster University Osteoarthritis Index (WOMAC) pain (SMD = − 1.09, 95%CI − 1.97, − 0.21, p = 0.02) and visual analog scale (VAS) (SMD = − 0.55, 95%CI − 0.98, − 0.12, p = 0.01). In addition, for physical function, meta-analyses showed that aquatic physical therapy effectively improved WOMAC physical function (SMD = − 0.57, 95%CI − 1.14, − 0.01, p = 0.05). However, our findings showed no significant improvements in symptoms of joints, quality of life (QOL), flexibility, and body composition with knee osteoarthritis. For muscle strength, we found that aquatic physical therapy can only improve knee extension muscle strength (MD = 2.11, 95%CI 0.02, 4.20, p = 0.05). Additionally, for walking ability, we observed that aquatic physical therapy effectively reduced Timed-Up-and-Go Test (TUGT) in a large degree (MD = − 0.89, 95%CI − 1.25, − 0.53, p < 0.05).ConclusionsAccording to the findings reported in the studies analyzed in the review, aquatic physical therapy had a positive effect on the pain, physical function, knee extension muscle strength, and walking ability among people with knee osteoarthritis.
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