Osteoporosis: An Exercise Guide
Check with your physician concerning any restrictions you may have
before beginning an exercise program.
Avoid any exercise that causes or increases pain.
Stop exercising if you feel dizzy or short of breath.
Never hold your breath while exercising.
Make sure to keep your body in alignment when performing all
exercises.
Avoid exercises that involve forward bending of your spine ( toe
touches, sit-ups). These exercises can increase the incidence of
vertebral fractures.
Avoid exercises that involve excessive twisting (windmill toe
touches). This puts too much force on your spine.
Strive to do one set of ten repetitions of each resistance exercise.
For a more challenging program, progress to three sets of ten
repetitions.
When using weights, rest one to two minutes between sets of exercises.
When using weights, make sure to gradually increase the amount. Too
much weight can be harmful.
Wear shoes with good support and cushioning while exercising. Replace
shoes when cushioning begins to wear out.
Disclaimer: The information provided on this web site is for informational purposes only. It should not be construed as medical advice. Consult your private physician regarding any health related questions. 
Osteoporosis Exercise Guidelines