Psychophysical And Physiologic Variables During Dynamic Lift Testing In Functional Capacity Evaluations | 17604
Occupational Medicine & Health Affairs
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Purpose: Patients who suffer on the job injuries rely on State administered workers? compensation systems for appropriate
medical treatment and rehabilitation. Functional Capacity Evaluations (FCEs) have been readily utilized by physical therapists
and other health care providers to evaluate a patient?s capacity to return to work along with establishing specific limitations
with common functional tasks required in the workplace. The purpose of this study was to evaluate heart rate (HR) responses
between patients in two performance level classifications (safe-maximal and sub-maximal) and to attempt to establish a
minimum threshold for HR changes that should be expected during specific functional testing protocols within FCEs.
Materials and Methods: Participants included 500 males and females ranging in age from 28 to 85 whom were injured on
the job. Variables measured included resting HR, pre-HR and peak-HR during dynamic lift testing, percent of HR change,
resting blood pressure. Participants were classified as providing either safe-maximal or sub-maximal performance during the
functional testing based on established objective criteria. All 500 individuals participated in three dynamic lift tests, floor to
knuckle, knuckle to shoulder, and shoulder to overhead. Analyses: A one tailed t-test was used to assess HR change between
Results: Statistically significant differences (p=0.0000000306) were found in percent change in HR between the safe-maximal
and sub-maximal performance groups for all three dynamic lift tests.
Conclusion: Statistically significant differences were found in percent change in HR, between the safe-maximal and submaximal
performance groups. This study may provide an objective physiological guideline for healthcare professionals to
use during sub-maximal performance groups. This study may provide an objective physiological guideline for healthcare
professionals to use during FCE assessments.
Vazquez Morgan earned a Bachelors of Science in Physical Therapy in 1993, a Masters in Health Sciences in1997 from Louisiana State University Health Sciences
Center in Shreveport, and her doctorate in Health Studies from Texas Woman?s University in Denton, Texas in 2006. She has 19 years of clinical rehabilitation
experience and has been a faculty member and assistant professor at Louisiana State University Health in Shreveport, School of Allied Health Professions since
1997.She has presented research both nationally, internationally, and regionally at continuing educations seminars. Her expertise is in neurological interventions as
well as nutrition, wellness, lifestyle modification, and community rehabilitation and occupational health. She was recently featured in National Newsline Magazine
for PT speakin gon the role of cultural diversity in the physical therapy profession, and was honored in November 2006 by Maybelline NY as outstanding female
educator of the year, and featured in People en Espanol December 2006 issue. She was also a recipient of the American Physical Therapy Association Minority
Faculty Development National Scholarship in 2003.
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