You do not need to have diastasis recti to benefit from abdominal rehab splinting. The abdominal splint acts as a pair of training wheels for a weak and disconnected core, offering assistance until your postural muscles are strong enough to hold you up effectively throughout the day. The splint provides the sensory feedback to help you understand how your core should function. Splinting without rehab, or splinting for months at a time, is not recommended for optimal healing.
Should I splint even if I don’t have diastasis recti?