They now recommend muscle training at least twice a week.

We had muscle training five or six or even seven times a week.

The push and pull of the water allows both increased muscle training and a built-in safety barrier for joints.

The result of this balanced loading design creates less stress on the knee joint and allows higher muscle training effect with lower perceived exertion.

These methods include power cleans, plyometrics, and other fast twitching muscle training techniques.