Harvard Health Letter

Great exercise that's easier on the joints

Exercising in water, also known as aquatic therapy, enables people to do many of the same exercises they would do on land without applying the same force on the joints. It has many benefits. Aquatic therapy takes pressure off the body, and that brings immediate relief to painful areas. Water provides resistance to the body, which helps build muscle and bone strength. The warmth of the water encourages one to move, which has a helpful side effect: repetitive movement pumps a natural lubricant called synovial fluid into the joints.
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