Osteopenia is really not a disease,rather it is a precursor to Osteoporosis. It means that your bone density is low for your age. It can, however, be reversed. I was diagnosed with Osteopenia myself. I INCREASED my bone density with exercise and calcium. I exercised 1 hour every day 6i days a week for 2 years. I alternated cardio and weight training. I could not take Bisphosphonates as they really upset my stomach. Anyway, if you are exercising with Cathe...keep it up and do it regularly. If you CAN take Bisphosphonates like Fosomax you are suppose to do that...if not, Calcium and exercise really helps