Some expectant mothers have to be placed on bed rest prior during their pregnancy, which can result in weak muscles. Physical therapists instruct these patients in an exercise program that they can perform while they are restricted to bed to help maintain muscle strength.

On occasion, mothers who have given birth have leg weakness or pelvic pain from the delivery which can necessitate the need for a walker or crutches. In this case, a physical therapist provides instruction on these assistive devices and prescribes muscle strengthening exercises.