Discrete Versus Rhythmic Gait Training
2 mai 2017 mis à jour par: Thais Amanda Rodrigues
Robot-assisted Locomotor Training After Severe Stroke: Discrete Versus Rhythmic Movement
The objective of this study is to compare the effects of novel versus standard locomotor training using a robotic gait orthosis (LT-RGO) after stroke.
The hypothesis is that the novel LT-RGO protocol, by establishing a progressive decrease in gait velocity and guidance force, may facilitate greater motor recovery compared to the use of a standard protocol.
Aperçu de l'étude
Statut
Complété
Les conditions
Intervention / Traitement
Description détaillée
Standard (rhythmic) robot-assisted locomotor training on a bodyweight-supported treadmill (LT-BWST) used progressively increased speed each week.
Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed.
The novel approach of slowing down the treadmill reduced momentum.
If speed had been increased (standard approach), momentum would have increased (momentum = mass * velocity); and the resulting, passive propulsion of momentum would have diminished the role of cortical skills needed to plan, initiate, and overtly control gait.
In sum, the novel protocol used a slower-than-standard treadmill speed in order to provide a window of time sufficient for the corticomotor system to process information, learn, and adjust its response to internal and external feedback (eg, proprioceptive input; therapist input) during robot-assisted LT-BWST.
Type d'étude
Interventionnel
Inscription (Réel)
20
Phase
- N'est pas applicable
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Sao Paulo, Brésil, 05716-150
- Instituto de Medicina Física e Reabilitação - Lucy Montoro
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
18 ans et plus (Adulte, Adulte plus âgé)
Accepte les volontaires sains
Non
Sexes éligibles pour l'étude
Tout
La description
Inclusion Criteria:
- Clinical diagnosis of stroke and image with hemiparesis left or right;
- No more that one ischemic or hemorrhagic stroke episode;
- 06 months post-stroke;
- Verified clinical stability on medical evaluation;
- Spasticity level I or II in the Ashworth scale;
- Score 1-2 in the Functional Ambulation Scale (FAC);
- Signed informed consent.
Exclusion Criteria:
- Dependence to perform activities of daily living before the stroke;
- Lack of clinical indications for exercises (such as cardiopulmonary instability and uncontrolled diabetes);
- Severe cognitive impairment;
- Serious psychiatric change that needs psychiatric care;
- Severe osteoporosis;
- Severe spasticity of the lower limbs, deformities or fixed contractures that prevent the achievement of movements;
- Lack of resistance or disabling fatigue;
- Body weight greater than 150 kg;
- Unstable angina or other untreated heart disease;
- Chronic obstructive pulmonary disease;
- Unconsolidated fractures, pressure sores;
- Other neurological diseases.
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Tripler
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: Novel Protocol
Progressive decrease of speed and guidance force on robotic gait training.
Initial speed is 1.4 km/h and final speed is 1.0 km/h.
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All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup).
Novel (discrete) robot-assisted LT-BWST used progressive decrease in speed.
Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h.
The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week.
The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject.
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Expérimental: Standard Protocol
Progressive increase of speed and decrease of guidance force on robotic gait training.
Initial speed is 1.4 km/h and final speed is 1.9 km/h.
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All subjects performed robot-assissted LT-BWST 5 times a week for 6 weeks (30 minutes of training and 15 minutes of setup).
Standard (rhythmic) robot-assisted LT-BWST used progressively increased speed each week.
Both groups started the robot-assisted LT-BWST at the same speed of 1.4km/h.
The body weight support started approximately at 40% of body weight for both groups and rapidly decreased each week.
The guidance force was also progressively decreased for both groups so that the exoskeleton provided the least possible assistance to the subject
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Functional Ambulation Scale (FAC)
Délai: Baseline and 6 weeks
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The Functional Ambulation Scale (FAC) assesses an individual's independence during gait and follows a six-level scale: 0 - Patient can not walk or ask for help from two or more people; 1 - Patient requires continuous support from a person who assists with weight and balance; 2 - Patient needs continuous or intermittent support from a person to help with balance and coordination; 3 - Patient required for a person without physical contact; 4 - Patient can walk independently on the floor, but requires help on stairs and ramps; 5 - Patient can walk independently. This study compared the gait independence by the FAC between the two Arms, after intervention as compared to baseline. |
Baseline and 6 weeks
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Six-minute Walking Test (6MWT)
Délai: Baseline and 6 weeks
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Change in distance of the gait applied test after intervention as compared to baseline
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Baseline and 6 weeks
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Time Up and Go (TUG)
Délai: Baseline and 6 weeks
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This test assesses the level of mobility of the individual to measure the time spent to get up from a chair, walk a distance of 3 meters, turn around and return.
This study compared the change in the time of the gait applied test after intervention as compared to baseline.
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Baseline and 6 weeks
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Ten-meters Walking Test (10MWT)
Délai: Baseline and 6 weeks
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Change in the time of the gait applied test after intervention as compared to baseline
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Baseline and 6 weeks
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Lower Limbs Fugl-Meyer
Délai: Baseline and 6 weeks
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The Fugl Meyer Scale is a cumulative numerical scoring system that is assessed by an individual: range of motion, pain, tenderness, upper and lower extremity motor function and balance, plus coordination and speed of movement, with total 226 points. A three-point ordinal scale is applied to each item: 0 - can not be performed, 1-performed partially and 2-performed completely. For this study it was only an evaluation of motor function of the extremity of lower limbs with a total score of 0 to 34 points. The lower score indicates greater motor impairment. This study compared the change in motor function of lower limbs applied scale after intervention as compared to baseline |
Baseline and 6 weeks
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Berg Scale
Délai: Baseline and 6 weeks
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Berg Scale is a functional scale of equilibrium performance, based on 14 common everyday items that evaluate the static and dynamic balance.
The maximum scale score is 56 and each scale item has five alternatives ranging from 0 to 4 points.
A score below 45 is considered a fall risk.
This study comparede the change in the balance control applied scale after intervention as compared to baseline.
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Baseline and 6 weeks
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Parrainer
Les enquêteurs
- Chaise d'étude: Daniel G Goroso, Doctor, University of Sao Paulo
- Chaise d'étude: Lumy Sawaki, PhD, University of Kentucky
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude
1 novembre 2014
Achèvement primaire (Réel)
1 mars 2016
Achèvement de l'étude (Réel)
1 septembre 2016
Dates d'inscription aux études
Première soumission
5 janvier 2016
Première soumission répondant aux critères de contrôle qualité
6 janvier 2016
Première publication (Estimation)
8 janvier 2016
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
18 septembre 2017
Dernière mise à jour soumise répondant aux critères de contrôle qualité
2 mai 2017
Dernière vérification
1 mai 2017
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- Robotics in Stroke
Plan pour les données individuelles des participants (IPD)
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INDÉCIS
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