Measurement Properties of Mechanical Cost of Walking for Individuals With Walking Impairment
ConditionStroke
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age30-80
SponsorUniversity of Cincinnati
About this trial
Walking impairment following neurologic injury can increase the energy cost of walking threefold, acting as a functional barrier to independence. The goal of this cross-sectional study is to determine the measurement properties of a novel biomechanical cost of walking measure in chronic stroke capable of pinpointing the origins of movement inefficiencies. This research aims to:
1. determine the convergent validity of biomechanical cost of walking with functional measures in relation to metabolic cost of walking, 2. determine the reliability of biomechanical cost of walking in relation to metabolic cost of walking, 3. determine the responsiveness of biomechanical cost of walking in relation to metabolic cost of walking.
Individuals with walking impairment from stroke will complete three 5-minute comfortable speed treadmill walking trials. The 3rd walking trial will be against resistance to increase cost of walking. This single session study will compare the metric properties of biomechanical cost of walking in relation to metabolic cost of walking.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 30-80 years at the time of consent
Hemiparesis from ischemic and/or hemorrhagic strokes
Most recent stroke for which participant sought treatment, at least 3 months prior to study consent
Walking speed <1.0 m/s on the 10-meter walk test
Disqualifiers
Hospitalization for cardiac or pulmonary disease within past 3 months
Implanted pacemaker or defibrillator
Severe lower limb hypertonia (Ashworth >2)
Foot drop or lower limb joint instability without adequate stabilizing device
Trial design
Design model
Single group
Treatments tested in this trial
Resisted walking
BehavioralComfortable speed treadmill walking with resisted forward progression.
Treatment groups
18 Participants
are divided into 1 treatment groupGroup A: Treadmill walking with and without resistanceExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Constituent Lower Extremity Work
Energy expenditure calculated using biomechanical variables such as force and limb motion
Time frame
1st minute and 5th minute of resisted walking trial versus non-resisted walking trial.2
Metabolic Cost of Walking
Energy expenditure calculated using oxygen consumption and carbon dioxide production
Time frame
1st minute and 5th minute of resisted walking trial versus non-resisted walking trial.Sponsors and contacts
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Source ClinicalTrials.gov