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Published on: August 30, 2016
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Knee posture during gait and global functioning post-stroke: a theoretical ICF framework using current measures in
Marlene Cristina Neves Rosa1, Alda Marques, Sara Demain
1Department of Health Sciences (Secção Autónoma de Ciências da Saúde - SACS), University of Aveiro , Aveiro , Portugal .
Disability and Rehabilitation
|August 7, 2014
Summary
Abnormal knee posture after stroke significantly impacts patient function and participation. This affects strength, mobility, and the need for walking aids and caregiver support.
Area of Science:
- Neurorehabilitation
- Biomechanics
- Functional Mobility
Background:
- Stroke frequently leads to motor impairments affecting lower limb function.
- Knee posture abnormalities are common post-stroke, potentially influencing gait and overall function.
- Understanding the functional impact of abnormal knee posture (AKP) is crucial for targeted rehabilitation.
Purpose of the Study:
- To characterize and compare global functioning in stroke survivors with normal knee posture (NKP) versus abnormal knee posture (AKP) during the loading response phase of gait.
- To identify specific functional limitations associated with AKP in the post-stroke population.
Main Methods:
- A cohort of 35 individuals, 6 months post-stroke, were assessed.
- Participants were categorized into NKP and AKP groups.
- A comprehensive assessment battery, aligned with the International Classification of Functioning, Disability and Health (ICF) domains, was employed, including measures of strength, spasticity, motor control, and various functional mobility tests (e.g., 5-meter walk test, Timed-Up and Go test, WHODAS II).
Main Results:
- Patients with AKP exhibited significantly lower knee flexor strength and higher spasticity (both flexor and extensor).
- The AKP group demonstrated greater difficulty with standing, short and long-distance walking, increased use of walking aids, and higher reliance on caregiver support.
- Activity and participation restrictions correlated with knee flexor strength in the AKP group and knee spasticity in the NKP group.
Conclusions:
- Abnormal knee posture following stroke is a significant factor that restricts global functioning and participation.
- Targeted interventions addressing knee posture and associated impairments are essential for improving functional outcomes in stroke survivors.
