This study aims to develop an efficient clinical protocol for evaluation of functional walking ability in rehabilitation practice
ID
Source
Brief title
Condition
- Other condition
Synonym
Health condition
vasculair of traumatische eenzijdige boven- of onderbeen amputatie met prothesegebruik als gevolg
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Primary study parameters of 'free walking' are: preferred speed, step length,
step width, asymmetry in step length, step time, and phase (phase cordination
index, Plotnik et al. 2007), steptime variability (standard deviation,
coefficient of variation, Hausdorff, 2007), and dynamic stability measures
(e.g., correlations in consecutive steptime intervals (Ainsworth et al. 2007).
Primary stdy parameters of obstacle avoidance are the number of succesfull
crossings, adjustments times, and adjustment type (shortening/lengthening
strategies (Hofstad et al. 2006; Weerdesteyn et al. 2005)).
Primary study parameters of the steppings stones trials are the root mean
square difference between footplacement and stepping stone position.
Secondary outcome
Secundary study parameters are the standard clinimetrics and assessmenst of
fall risk and confidence.
Background summary
Gait adaptability -the ability to adjust gait to changes in the environment- is
an important aspect of prosthetic gait, yet difficult to assess in clinical
settings.
Study objective
This study aims to develop an efficient clinical protocol for evaluation of
functional walking ability in rehabilitation practice
Study design
Participants walk on an instrumented treadmill (the C-Mill) at their preferred
speed in three conditions. The first condition is 'free walking'. The C-Mill
enables automatic registration of the prosthetic gait pattern over a large
number of strides, allowing for analyses of dynamic stability of gait. In the
second condition, participants are instructed to avoid real-virtual visual
obstacles projected on the treadmill using a beamer. Obstacles will be
projected in such a manner that the participant would step on them if gait is
not adjusted. Response time (short and long) and side (prosthetic vs.
non-prosthetic side) will be varied across trials to gain insight in reactive
and anticipatory obstacle avoidance behavior. In the third condition,
participants are instructed to walk visually-projected stepping stone patterns
that vary in predictability. Online gait adjustments are required to follow the
pattern. Stability and flexibility outcome measures will be related to standard
clinimetric measures. The results will be used in developing an efficient
protocol for clinical evaluation of gait stability and adaptability.
Study burden and risks
Participants are asked to walk on a treadmill for 4 x 4 minutes after a period
of familiarization. Participants of the control group walk 8 x 4 minutes; 4
times on their own preferred speed and 4 times on the mean preferred speed of
the prosthetic groups.
The risks associated with the proposed research are minor. The treadmill is
equipped with the usual safety precautions (safety stop, handrail). In
addition, participants wair a safety harnas attached to the ceiling to prevent
them from falling in case of a trip. Furthermore, a spotter is available for
assistance.
van der Boechorststraat 9
1081 BT Amsterdam
Nederland
van der Boechorststraat 9
1081 BT Amsterdam
Nederland
Listed location countries
Age
Inclusion criteria
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.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL27613.029.09 |