Hi @ilovetrees, As @windyshores pointed out, a weighted vest may cause fractures. My rheumatologist told me not to use one and I heard Sara Meeks, a Physical Therapist who specializes in osteoporosis, mention that as well. Dr. Loren Fishman (Columbia University School of Medicine) has an ongoing study of specially selected yoga poses that build bone density. There are modifications of the classic poses for those with osteoporosis and osteopenia. You can Google 12 Poses vs Osteoporosis and also check out his work at http://www.sciataca.org . It is also possible to get a consult with him. There have been no injuries to participants in his study. Take care,