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Training Based On Declarative Memory Cues Improved Gait In Patients With Parkinson's Disease

6 novembre 2015 mis à jour par: University of Sao Paulo General Hospital

Improvement In Gait Performance After Training Based On Declarative Memory Cues In Patients With Parkinson's Disease: A Randomized Clinical Trial

Deficits in automatic motor control, characteristic of Parkinson's disease (PD), contribute to progressive impairment in gait performance. The use of declarative memory cues in order to promote the engagement of attention and activation of the next movement in gait may minimize the consequences of lack of automatic control. The purpose of this study is to verify the long-term efficiency of a new strategy based on declarative memory cue to improve the gait performance and independence in daily life activities (DLA) in patients with PD.

Aperçu de l'étude

Statut

Complété

Les conditions

Intervention / Traitement

Description détaillée

Background: Deficits in automatic motor control, characteristic of Parkinson's disease (PD), contribute to progressive impairment in gait performance. The use of declarative memory cues in order to promote the engagement of attention and activation of the next movement in gait may minimize the consequences of lack of automatic control.

Objectives: To verify the long-term efficiency of a new strategy based on declarative memory cue to improve the gait performance and independence in daily life activities (DLA) in patients with PD.

Design: Parallel prospective, single blind, randomized clinical trial. Setting: Brazilian Parkinson Association. Participants: Forty-four patients with PD in stages 2-3 of disease evolution according to Hoehn and Yahr Classification Interventions: The experimental training (ET) consisted of eight gait training sessions, twice a week, using the declarative memory cues strategy (DMCS). The control training (CT) consisted of a similar gait training without DMCS.

Primary outcome measure: Gait performance in terms of speed and stride length. Secondary outcome measure: Independence in DLA according to Section II of the Unified Parkinson's Disease Rating Scale.

Randomization: Participants were randomized into a control group (CG), which performed the CT, and an experimental group (EG), which performed the ET, through blinded drawing of names.

Statistical analysis: The gait performance and ADL independence before, 2 and 60 days after the end of training were compared for CG and EG using Repeated-measures analysis of variance (RM-ANOVA).

Type d'étude

Interventionnel

Inscription (Réel)

50

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

  • Brésil
      • São Paulo, Brésil, 05360-160
        • Department of Physiotherapy, Communication Science & Disorders, Occupational Therapy, School of Medicine, University of São Paulo

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

65 ans à 80 ans (Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  • diagnosis of idiopathic Parkinson's disease according to the UK Brain Bank criteria;
  • in stage 2-3 of the disease evolution according to the Hoehn and Yahr;
  • treated with levodopa or its synergists;
  • capable to ambulate independently indoors without aid;
  • referring 5 to 15 years of education;
  • good visual and auditory acuity.

Exclusion Criteria:

  • presence of other neurological (excluding PD), orthopedic or cardiopulmonary problems;
  • visual and auditory deficiency;
  • dementia [assessed by the Mini Mental State Examination (MMSE), cut-off 23];
  • depression [according to the Geriatric Depression Scale (GDS-15), cut-off 6]
  • participation in other physical therapy training.

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: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: experimental group (EG)
The experimental training (ET) consisted of eight gait training sessions, twice a week, using the declarative memory cues strategy (DMCS).
Comportemental: Experimental Training

The ET consisted of 3 phases being that the first one (Phase 1) was done only in the first session.

Phase 1: patients received a short and simple explanation about the deficiency in automatic movement resulting from PD. Following explanation, the patient memorized a sequence of declarative cues. Phase 2: the patient organized a sequence of cues using cards illustrating the subcomponent movements (key movement) involved in taking steps.

Phase 3: the patient had to train using declarative cues as a gait performance aid through 8 sets follow the instruction "Walk in your ordinary speed. Use the key movements and going to saying each of them while you make them. The declarative cues had to be evoked verbally by the patients themselves, during gait, triggering the corresponding movement.

Autres noms:
  • Declarative memory cues strategy (DMCS)
Comparateur actif: control group (CG)
The control training (CT) consisted of a similar gait training without DMCS.
Comportemental: Control Training

The CT consisted of 3 phases, being the first one (Phase 1) was done only in the first session of training, and the other two (Phase 2 and 3) were repeated at each of the 8 sessions.

Phase 1: Patients received a short and simple explanation about the deficiency in automatic movement resulting from PD.

Phase 2: Patients received a general verbal attentional instruction of "pay attention to your steps and try to walk as better as you can", before starting the walk.

Phase 3: motor training of gait, where the patient had to perform 8 sets, following the instruction "Walk in your ordinary speed, paying attention to your steps" in the identical trajectories of ET. Additional instructions or cues were not provided.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
gait speed
Délai: up to 3 months
The first primary outcome was the gait speed (m/s). Patients were asked to walk in a straight trajectory of 20 meter following the sole instruction "upon the go signal, walk as fast as possible at the line and stop". The speed was calculated based on the time to walk 20 meters timed using a digital chronometer.
up to 3 months
stride length on gait
Délai: up to 3 months
The second primary outcome was the stride length (cm) on gait. Patients were asked to walk in a straight trajectory of 20 meter following the sole instruction "upon the go signal, walk as fast as possible at the line and stop". The number of steps was measured using a pedometer.
up to 3 months

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Independence in activities of daily living (ADL)
Délai: up to 3 months
The secondary outcome was independence in activities of daily living (ADL), assessed by Section II of the Unified Parkinson Disease Rating Scale (UPDRS-II). This section includes 12 questions (items 5 to 16) on patient's performance in ADL. Among these questions, two investigate gait performance (frequent fall due to freezing; inability to walk ), with scores ranging from zero (normal) to 4.
up to 3 months

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

University of Sao Paulo General Hospital

Les enquêteurs

  • Chercheur principal: Maria Elisa P Piemonte, PhD, Department of Physiotherapy, Communication Science & Disorders, Occupational Therapy, School of Medicine, University of São Paulo

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 mars 2014

Achèvement primaire (Réel)

1 août 2015

Achèvement de l'étude (Réel)

1 octobre 2015

Dates d'inscription aux études

Première soumission

4 novembre 2015

Première soumission répondant aux critères de contrôle qualité

6 novembre 2015

Première publication (Estimation)

9 novembre 2015

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Estimation)

9 novembre 2015

Dernière mise à jour soumise répondant aux critères de contrôle qualité

6 novembre 2015

Dernière vérification

1 novembre 2015

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • USPNEC006

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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