Take your workout to the pool
Many "Y"s and tness centers have water classes.
Even if you don't swim, exercising in the water can improve your strength, balance, and cardiovascular fitness. And it's easier on your joints.
Water has something for every exerciser. It provides an environment for a cardiovascular workout, support for balance exercise, and relief for aching joints. "The water is a great tool, whatever your goals or level of fitness," says Dr. Diana Fischer, orthopedic clinical supervisor at Harvard-affiliated Spaulding Rehabilitation Institute.