Final answer:
Physical therapists play a crucial role in TBI by improving physical functioning and reducing impairments through assessments and tailored exercise programs.
Step-by-step explanation:
The role of a physical therapist in traumatic brain injury (TBI) involves improving physical functioning and reducing functional impairments. They assess the capabilities of a patient and design a program to enhance these capabilities. Factors such as strength, balance, and endurance are continually monitored as exercises are introduced to track improvements in muscle function. Physical therapists also provide instruction on the proper use of equipment and help patients regain their normal level of physical activity.