Background and Purpose. The purpose of this qualitative study was to identi
fy the dimensions of clinical expertise in physical therapy practice across
4 clinical specialty areas: geriatrics, neurology, orthopedics, and pediat
rics. Subjects:. Subjects were 12 peer-designated expert physical therapist
s nominated by the leaders of the American Physical Therapy Association sec
tions for geriatrics, neurology, orthopedics, and pediatrics. Methods. Guid
ed by a grounded theory approach, a multiple case study research design;was
used, with each of the 4 investigators studying 3 therapists working in on
e clinical area. Data were obtained through nonparticipant observation, int
erviews, review of documents, and analysis of structured tasks. Videotapes
made during selected therapist-patient treatment sessions were used as a st
imulus for the expert therapist interviews, Data were transcribed, coded, a
nd analyzed through the development of 12 case reports and 4 composite case
studies, one for each specialty area. Results. A theoretical model of expe
rt practice in physical therapy was developed that included 4 dimensions: (
1) a dynamic, multidimensional knowledge base that is patient-centered and
evolves through therapist reflection, (2) a clinical reasoning process that
is embedded in a collaborative, problem-solving venture with the patient,
(3) a central focus on movement assessment linked:to patient function, and
(4) consistent virtues seen in caring, and commitment to patients. Conclusi
on and Discussion. These:findings build on previous research in physical th
erapy on expertise. The dimensions of expert practice in physical therapy h
ave implications for physical therapy practice, education, and continued re
search.