Temporal-Spatial Values During a 180° Step Turn in People with Unilateral Lower Limb Amputation
Sheila M Clemens1, Glenn K Klute2, Neva J Kirk-Sanchez3
1Department of Physical Therapy, Miller School of Medicine, University of Miami, Coral Gables, FL, United States; Research Department, Miami VA Healthcare System, Miami, FL, United States.
Gait & Posture
|May 27, 2018
Summary
People with lower limb loss use different turning strategies based on amputation level and turn direction. Understanding these movement patterns can inform prosthetic fitting and physical therapy for amputees.
Area of Science:
- Biomechanics
- Prosthetics and Orthotics
- Rehabilitation Medicine
Background:
- Turning is a crucial daily activity for individuals with lower limb loss.
- Limited research exists on how amputees perform turning maneuvers.
- Assessing turn performance using clinical measures like the Component Timed-Up-and-Go (cTUG) is valuable.
Purpose of the Study:
- To investigate the temporal-spatial parameters of 180° turns in individuals with unilateral lower limb amputation.
- To compare turning strategies between transtibial and transfemoral amputees.
- To analyze differences in turning based on turn direction (toward intact vs. prosthetic limb).
Main Methods:
- Forty community-ambulating subjects with unilateral lower limb amputation (20 transtibial, 20 transfemoral) participated.
- Subjects performed the cTUG test, including a 180° turn in both directions.
- An instrumented walkway and iPad application recorded temporal-spatial data during the turn.
Main Results:
- Individuals with lower limb amputation spent more time bearing weight on their intact limb during turns.
- Transfemoral amputees spent significantly more time over their intact limb compared to transtibial amputees.
- Transfemoral amputees executed turns faster when the intact limb was on the inside of the turn.
Conclusions:
- Amputees exhibit distinct movement strategies and temporal-spatial characteristics when turning.
- Turn direction and amputation level significantly influence turning biomechanics.
- The cTUG test can provide data to guide prosthetic prescription and physical therapy interventions for amputees.
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