Changes in Trans Tibial Amputee Running Asymmetry During Prolonged Effort

Study Overview
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Brief Summary
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The purpose of this study is to determine the effect of prolonged effort in long distance running on the biomechanical bilateral asymmetry in the lower limbs of trans tibial amputee running with running specific prosthesis.

Official Title
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The Effect of Prolonged Effort on the Bilateral Asymmetry in Trans Tibial Amputee Running With Running Specific Prosthesis

Conditions
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Amputation, Traumatic

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Unilateral traumatic trans tibial amputee. Experience in running with running specific prosthesis. Ability to run for at least 20 minutes. Exclusion Criteria: Injury or other orthopedic or neurologic issue that compromises the gait.

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The changes in step length asymmetry after prolonged effort in running on a treadmill. | Step length will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 20-30 minutes run. | 
| The changes in contact time asymmetry after prolonged effort in running on a treadmill. | Contact time will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 
| The changes in flight time asymmetry after prolonged effort in running on a treadmill. | Flight time will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 
| The changes in hip angles asymmetry after prolonged effort in running on a treadmill. | Hip angles will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 
| The changes in knee angles asymmetry after prolonged effort in running on a treadmill. | Knee angles will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 
| The changes in vertical ground reaction force asymmetry after prolonged effort in running. on a treadmill | Vertical ground reaction force will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 
| The changes in ground reaction impulse asymmetry after prolonged effort in running on a treadmill. | Vertical ground reaction impulse will be recorded by the v-gait analysis system during the running test for 20 seconds at certain points of the run: minute 0, 5, 10, 15, 20, 25, 30. If the subject will ask to stop the run, 20 seconds will be recorded prior to the termination of the run. | Several measurements during 30 minutes run. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Amputation, Traumatic, Biomechanics, Asymmetry, Amputee Running, Prolonged Effort