Any exercise that uses extra weight, or where your feet are in contact with the ground helps build bones. Walking, marching, and other such exercises are good weight bearing exercises.
Check with your doctor before starting any exercise program.
In our program, while the focus is fall prevention, we incorporate several good bone-building exercises. Here are two examples:
a. Place one hand on kitchen counter or other stable surface for support. Stand with the counter at your side.
b. Back straight, abdominals lifted.
c. Raise your knees to march, keeping your knees pointing forward (do not twist).
d. 20 times, rest, repeat.
Upward Row, using weights (choose a weight you can work with while maintaining a good posture. Increase the weight as you gain strength. If you are swinging your arms, or bending backwards, your weights may be too heavy.):
a. Stand with feet shoulder width apart, with arms at sides, palms facing thighs, holding weights.
b. Lift the weights to shoulder height, elbows out to the side.
c. Gently lower to starting position.
d. Exhale as you lift.
e. Inhale as you lower.
f. 15 times, rest, repeat.