At your hearing, you may be asked about your ability to sit for long periods of time. Avoid saying that after sitting for a long time you need to shift in your chair, as almost everyone has to do that, and it does not affect your ability to do work at all.
Be prepared to discuss in detail what you feel the need to do after sitting for a period of time. Do you need to stand up and stretch every so often? Do you need to alternate between periods of standing and sitting throughout the day? Do you feel the need to walk around every so often, and for how long?
This example is a good answer if asked how long you can sit: “I can sit for maybe an hour if I force myself, but then I will have to lie down for the rest of the day and won’t be able to work. Usually, I try to only sit for about 20 minutes at a time when doing housework, then get up and walk around for 20 minutes. It would be better for me to have a job where I could alternate between sitting and standing, so that I could sit down for shorter periods of time as the day goes on. I am able to sit for longer periods in my recliner chair, but it’s hard for me to do any work there.”
A majority of employers allow for short breaks every few hours or are compelled by law. Would those breaks be sufficient for you to remain able to work throughout the day, or would you require extra time? What would you need to do during your breaks, how often, and for how long?
Ultimately, you may be asked what portion of an eight-hour workday you are able to sit, even if the sitting is totaled up from many short intervals (you may be asked the same question about standing as well). Consider the answer to this question before your hearing so you can give the judge an accurate estimate.