Impact of Training on Gait and Strength in Stroke Survivors
Gait Performance and Lower-limb Muscle Strength Improved in Both Upper-limb and Lower-limb Isokinetic Training Programs in Individuals With Chronic Stroke
Background: A discrepancy between strength gain and gait changes following various training programs aimed at improving gait function after stroke has been noted. A mismatch between the training program and gait parameters could explain this finding.
Objective: To evaluate the impact of an isokinetic-strengthening program, matching the requirements of the affected lower-limb muscle groups involved in the energy generation of gait, to a control intervention, on gait performance and muscle strength.
Hypothesis: The isokinetic training program of the affected lower-limb muscles would produce greater changes in gait performance and strength than a control intervention not aiming at training these muscle groups.
Design: Single-blinded randomized controlled trial.
Participants: A convenient sample of 30 individuals with chronic hemiparesis.
Interventions: Participants were randomly assigned into two groups (n=15), each training three times/week for six weeks. The experimental group trained the affected plantarflexors, hip flexors and extensors concentrically, while the control group trained the affected upper-limb muscles.
Main outcome measures: Baseline values and post-training values, taken at the end of the training program, of maximal voluntary concentric strength, gait speed and peak positive power.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
-
Quebec
-
Montréal, Quebec, Canada, H3S 1M9
- Institut de réadaptation Gingras-Lindsay
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- have a chronic (six months or more) unilateral stroke
- be able to walk 10 meters independently with or without a cane
- present residual weakness at the affected lower limb
- have an activity tolerance of at least two hours with a rest period
Exclusion Criteria:
- receptive aphasia
- incontinence
- unstable medical condition
- history of injury
- anesthesia at the lower limbs
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Comparateur actif: isokinetic lower-limb training
3 times/week for 6 weeks
|
concentric training of the affected plantarflexors, hip flexors and hip extensors
|
|
Comparateur placebo: isokinetic uppe-limb training
3 times/week for 6 weeks
|
concentric training of the affected wrist extensors, elbow flexors and shoulder flexors
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
change in gait speed
Délai: gait speed was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
change in gait speed, in meter/second, was assessed as the difference between the baseline and week #7 values.
|
gait speed was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
|
change in peak positive power
Délai: peak positive power was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
peak positive power was evaluated at the affected plantarflexors, hip flexors and hip extensors.
Also, change in peak positive power, in weight/kilogram, was assessed as the difference between the baseline and week #7 values.
|
peak positive power was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
change in maximal voluntary concentric strength
Délai: maximal voluntary concentric strength was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
maximal voluntary concentric strength was evaluated at the affected plantarflexors, hip flexors and hip extensors.
Also, change in maximal voluntary concentric strength, in Newton-metre, was assessed as the difference between the baseline and week #7 values.
|
maximal voluntary concentric strength was assessed at baseline and at the completion of the 6-week training (i.e. week #7)
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Sylvie Nadeau, PhD, Université de Montréal
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- IRSC-44059
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