Effects of 12-week aquatic exercise on cardiorespiratory fitness, knee isokinetic function, and Western Ontario and McMaster University osteoarthritis index in patients with knee osteoarthritis women

Abstract

The purpose of this study is to investigate the risk factors of metabolic syndrome, cardiorespiratory fitness, knee isokinetic function, and osteoarthritis index inpatients with knee osteoarthritis women. Subjects were divided into the exercise group (n=9, aged 60.89±5.06), and the control groups (n=8, aged 61.25±1.91). Aquatic exercise was performed for 12 weeks, 3 times a week, 60 min a day. The changes of metabolic syndrome risk factors, cardiorespiratory fitness, knee isokinetic function, and WOMAC index (Western Ontario and McMaster University osteoarthritis index) were measured and analyzed at pre- and postexercise program for verifying exercise effectiveness. As a result, fasting blood glucose (P<0.05), glycosylated hemoglobin (P<0.01), and triglyceride (P<0.05) were significantly decreased in the risk factors of metabolic syndrome. The maximum oxygen uptake in cardiorespiratory fitness was not significantly different. The left and right extensor muscles of knee isokinetic function increased significantly (P<0.01, P<0.01, respectively). There was no significant difference in flexor muscles. Osteoarthritis index was significantly improved in stiffness (P<0.01) and physical function (P<0.05). In conclusion, aquatic exercise can be regarded as an effective exercise program for managing metabolic syndrome risk factors, increasing muscle function, and improving osteoarthritis index in patients with osteoarthritis of the knee.

Effects of exercise on knee osteoarthritis: A systematic review

“…All RCTs were judged as low risk for selective reporting (reporting bias) and drop-outs were defined properly in all studies, except in one study which left the possibility of bias unclear (Ha et al, 2018).…”

Comparison of respiratory muscle strength in individuals performing continuous and noncontinuous walking exercises in water after the 6-week program

“…Aquatic exercise can reduce the self-weight load, which enables those with obesity (Sheldahl, 1986), joint diseases (Chi et al, 2011), or lumbago (Irandoust et al, 2015) to perform the exercise safely. In addition, it is known that water viscosity and pressure can be used as exercise loads contributing to the enhancement of extremity muscle strength (Craig and Ware, 1967; Ha et al, 2018; Lee et al, 2015).…”

Isokinetic testing of muscle strength in older adults with knee osteoarthritis: An integrative review

“…Numerous studies have documented significant increases in knee strength after exercise interventions [11,15,16,27,42,43,47,52,[54][55][56][57][58][59][60]64,73,78,80,82,85,87,89,90,[96][97][98]121,129,135] including strength-/power training [27,47,55,56,80,82,85,89,90,121,135], isokinetic exercise [47,52,[57][58][59]64,73,78,98,…”