What is the best exercise for someone with Sjogren's syndrome?

I will answer this question, What is the best exercise for someone with Sjogren's? from my own perspective but also taking into account recent research done into exercise for people living with Sjogren's.

In my opinion, it is whatever exercise you can stick to doing. For me, that is both hydrotherapy and walking, when I can't get to the pool. Another good option would be exercises recommended by a physiotherapist. 

"Mild exercise such as walking or swimming can help keep joints and muscles flexible. Exercise may also protect against further joint damage." - University of Washington Department of Orthopaedics and Sports Medicine on Sjogren's. 

A 2019 study showed that a supervised walking program helped reduce fatigue in women with Sjogren's. If you want to do this same walking program yourself this is how it was done: 

Each session was preceded by a warm-up period, where patients were instructed to walk freely and slowly for 5 minutes, followed by 20 minutes of effective walking when they were instructed to maintain their paces to achieve the target heart rate and ending by a cold -up period for 5 minutes (similar to a warm-up period).

The exercise prescription was based on the heart rate at the anaerobic threshold determined at the initial assessment. The increment of intensity exercise was based on time: 20 - 30 in the first 2 weeks, adding 5 minutes per week until the eighth week, completing 60 minutes, which remains until the end. READ MORE INFO ABOUT THIS 

If you are interested in hydrotherapy you may be lucky, like me, and find either a public or private run class for people with arthritis or for seniors. I was allowed to participate in these classes before becoming a senior as I had autoimmune conditions.

You don't need to be a swimmer to join a water exercise class (sometimes called Aqua Therapy or Hydrotherapy).  In the group I joined many people stood in the shallow water and hung onto the railing to do the movements and there was no swimming or floating involved.  There was even a hoist to lift some people, who could not manage the stairs, into the water. 

I personally find exercises in warm water essential to soothe my pain and turn it down. I do weekly classes of hydrotherapy. 

Research has not been done, to the best of my knowledge, to explain the importance of this non-pharmacological strategy for managing Sjogren's. Research has been done into the benefits for fibromyalgia, which is a chronic pain condition, as long as these aquatic classes were maintained.  I believe the benefits would be very similar for Sjogren's.

If you are looking for physiotherapy exercises you can do at home here is a pdf from versus Arthritis. The information sheet has stretching and strengthening exercises to manage osteoarthritis which benefit people with Sjogren's.