Beneficial effects of aquatic exercise were found on physical function .
Water-based exercises are recommended for people with osteoarthritis ( OA ) , due to the beneficial effects on physical function , quality of life and symptom reduction .
However , the effects on muscle strength are still controversial .
The aim of this review was to assess and compare the effects of aquatic exercise programs on muscle strength and physical function in people with OA .
The effects of a water-based exercise program on strength and functionality of older adults.
OBJECTIVE To analyze the effects of a water-based exercise program on peak torque ( PT ) and rate of torque development ( RTD ) during maximal voluntary ballistic isometric contractions of the lower limb muscles and the performance of a number of functional tests in the elderly . METHOD Thirty-seven elderly were r and omly assigned to water-based training ( 3 d/wk for 12 wk ) or a control group .  Extensor and flexor PT and RTD of the ankle , knee , and hip joints and functional tests were evaluated before and after training . RESULTS PT increased after training for the hip flexors ( 18 % ) and extensors ( 40 % ) and the plantar-flexor ( 42 % ) muscles in the water-based group . RTD increased after training for the hip-extensor ( 10 % ) , knee-extensor ( 11 % ) , and ankle plantar-flexor ( 27 % ) muscles in the water-based group . Functional tests also improved after training in the water-based group ( p < .05 ) . CONCLUSION The water-based program improved PT and RTD and functional performance in the elderly
Beneficial effects of aquatic exercise were found on physical function .
Water-based exercises are recommended for people with osteoarthritis ( OA ) , due to the beneficial effects on physical function , quality of life and symptom reduction .
However , the effects on muscle strength are still controversial .
The aim of this review was to assess and compare the effects of aquatic exercise programs on muscle strength and physical function in people with OA .