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Related Experiment Videos

Functional testing of elderly subjects after lower limb amputation.

H Burger1, C Marincek

  • 1Rehabilitation Institute, Ljubljana, Slovenia.

Prosthetics and Orthotics International
|September 28, 2001
PubMed
Summary

Functional tests effectively assess elderly individuals with lower limb amputation, differentiating severity and activity levels. These tests help evaluate mobility and balance in amputees compared to healthy seniors.

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Area of Science:

  • Gerontology
  • Rehabilitation Medicine
  • Biomechanics

Background:

  • Assessing functional capacity in elderly individuals post-lower limb amputation is crucial for tailored rehabilitation.
  • Standardized functional tests are widely used for healthy older adults, but their applicability to amputees requires validation.
  • Home-dwelling elderly amputees present unique challenges in mobility and daily living activities.

Purpose of the Study:

  • To determine if functional tests used for healthy elderly individuals are suitable for elderly amputees living independently.
  • To evaluate the ability of these tests to differentiate functional deficits based on amputation level (trans-tibial vs. transfemoral) and cause.
  • To assess if the tests can distinguish between active and sedentary amputee lifestyles.

Main Methods:

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  • A cohort of 83 elderly volunteers (≥60 years) participated, including healthy sedentary individuals (n=55), trans-tibial amputees (n=17), and transfemoral amputees (n=11).
  • Participants lived independently and underwent a battery of functional tests assessing mobility, balance, and strength.
  • Performance metrics included the 'up and go' test, 9-minute walk test, chair stand-ups, and a 2-minute step test.

Main Results:

  • Elderly amputees demonstrated significantly poorer performance on most functional tests compared to healthy sedentary controls.
  • Transfemoral amputees showed greater impairments, requiring more time for the 'up and go' test, walking shorter distances, and performing fewer chair stands and steps than trans-tibial amputees.
  • Active amputees exhibited superior balance, faster 'up and go' times, and longer 1-minute walk distances compared to their sedentary counterparts.

Conclusions:

  • The selected functional test battery is appropriate for evaluating elderly individuals with lower limb amputations.
  • These tests effectively discriminate between different levels of functional impairment related to amputation type and cause.
  • The tests also successfully differentiate functional capacity between active and sedentary elderly amputees, informing rehabilitation strategies.