Physical Therapists’ Role in Functional Capacity Evaluations
Scope and Training
- Physical therapists are trained to conduct exercise testing, assess physical function, and evaluate work capacity in patients with complex conditions and physical impairments (Circulation 2018) 1.
- Physical therapists perform comprehensive gait and mobility assessments, evaluate lower‑extremity strength, and prescribe balance‑training interventions (Praxis Medical Insights 2026) 2.
Standardized Functional Tests
- The 6‑minute walk test (6MWT) is a submaximal functional capacity test that requires no advanced equipment and is routinely administered by physical therapists (American Journal of Respiratory and Critical Care Medicine 2002) 3.
- The American Thoracic Society (ATS) 6‑minute walk test protocol provides step‑by‑step procedures, safety measures, and interpretation guidelines for use by physical therapists (American Journal of Respiratory and Critical Care Medicine 2002) 9.
- Physical therapists document functional performance using validated instruments such as the Functional Independence Measure (FIM) or the Barthel Index (Praxis Medical Insights 2026) 2.
Clinical Settings
- In rehabilitation settings, physical therapists serve as core members of interdisciplinary teams, evaluating patients with musculoskeletal and neurologic impairments through comprehensive examinations (Journal of the American Geriatrics Society 2002) 5.
- For home‑health evaluations, physical therapists assess gait speed with a 4‑meter walk test and balance with the Berg Balance Scale (Praxis Medical Insights 2026) 2.
Safety and Limitations
- Maximal cardiopulmonary exercise testing (CPET) with metabolic measurement typically requires physician supervision and specialized equipment, and is not routinely performed by physical therapists alone (Circulation 2013; American Journal of Respiratory and Critical Care Medicine 2003) 7, 8.
- When conducting functional tests in patients with cardiovascular or pulmonary disease, physical therapists should implement appropriate safety monitoring protocols (American Journal of Respiratory and Critical Care Medicine 2002) 3.