"Limited mobility" refers to a person's difficulty or inability to move around freely or easily. It could mean they have trouble walking, using their arms, or getting around without assistance.
A strong core contributes essentially to your overall health, and lack thereof increases your chances of injuries from falls because of limited mobility. (abmachinesguide.com)
When your dog is experiencing limited mobility as a result of age or obesity, you may need to adapt your playtime routine. (zippivet.com)