In a pregnant patient during her 3rd trimester, which physiological change should a physical therapist consider?

During the third trimester of pregnancy, significant physiological changes occur in the body to accommodate the growing fetus and prepare for delivery. One of the most notable changes is an increase in ligamentous laxity, which is primarily due to hormonal influences, particularly relaxin. This hormone helps to soften and relax the connective tissues around the joints, particularly in the pelvic area, to allow for greater flexibility and to facilitate childbirth.

Physical therapists must recognize and account for this increased ligamentous laxity when assessing and treating pregnant patients. The laxity can lead to instability in the joints, which may increase the risk of strain or injury during physical activities. By understanding this physiological change, therapists can tailor their interventions, such as exercise prescriptions and manual therapy techniques, to enhance support and stability while minimizing the risk of discomfort or injury.

This understanding is crucial for effectively managing the physical health of pregnant patients, particularly in their third trimester when the body is undergoing considerable changes.