Although walking is a great exercise to build up the strength of your leg muscles and its great for endurance too, you should also try leg exercises. The lunge is a great for strength training whether you use weights or not. It is also good for flexibility.

• In order to keep your balance you need to begin this exercise standing next to a chair or table.
• With one hand on the chair or table take a big step forward lowering yourself as you bend the leg you stepped forward. Don’t worry if you can’t lower yourself very much at first remember safety is always first.
• Return to the starting position and do 10 repetitions with each leg.

Remember to check with your doctor before starting any exercise program.