Stability and adaptability of prosthetic gait: the development of a clinical evaluation method

Recruiting

Conditions: vasculair of traumatische eenzijdige boven- of onderbeen amputatie met prothesegebruik als gevolg
prosthetics
lower-limb amputees

Registration Number: NL-OMON32950

Lead Sponsor: Vrije Universiteit

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Recruiting

Sex: Not specified

Target Recruitment: 36

Inclusion Criteria

age between 18-65 years and physically able to walk 4 minutes on a treadmill. For prosthetic groups subsequent criteria hold: unilateral transfemoral or transtibial amputation, Sigam mobility classification C-F, use of own protheses to ensure a good fitting. A mechanically movable knee is required for transfemoral amputees.

Exclusion Criteria

Cardio-respiratory, neurologic, orthopedic, or vestibular impairments that could influence walking ability.

Study & Design

Study Type: Observational non invasive

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Primary study parameters of 'free walking' are: preferred speed, step length,<br /><br>step width, asymmetry in step length, step time, and phase (phase cordination<br /><br>index, Plotnik et al. 2007), steptime variability (standard deviation,<br /><br>coefficient of variation, Hausdorff, 2007), and dynamic stability measures<br /><br>(e.g., correlations in consecutive steptime intervals (Ainsworth et al. 2007).<br /><br>Primary stdy parameters of obstacle avoidance are the number of succesfull<br /><br>crossings, adjustments times, and adjustment type (shortening/lengthening<br /><br>strategies (Hofstad et al. 2006; Weerdesteyn et al. 2005)).<br /><br>Primary study parameters of the steppings stones trials are the root mean<br /><br>square difference between footplacement and stepping stone position.</p><br>

Secondary Outcome Measures