Hello @maryalicep, Welcome to Mayo Clinic Connect. I don't have UCTD but I do have degenerative arthritis and osteopenia along with a few other autoimmune conditions. I know that exercise helps a lot of us with different conditions but I try not to overdo the exercise if I'm having pain. Here is a link that discusses exercise and also has links to other articles that may be helpful.

- Exercise in patients with inflammatory arthritis and connective tissue disease: https://pubmed.ncbi.nlm.nih.gov/2087581/

Also the Genetic and Rare Diseases Information Center (GARD) has some information on UCTD that might be helpful: https://rarediseases.info.nih.gov/diseases/12342/undifferentiated-connective-tissue-disease

I think even just regular walking would be beneficial. Do you have any home exercise equipment or enjoy Yoga?