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Multiple Practice Contexts to Reduce Context-dependent Learning in PD

NCT03368443 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 58

Last updated 2021-03-16

No results posted yet for this study

Summary

Context-dependent learning (CDL) is a phenomenon that an individual demonstrates superior motor performance in the environmental context in which a task was originally learned and practiced, while the performance may decrease if carried out in a novel context. It has often been observed that after individuals with Parkinson's disease (PD) learned how to walk in a clinical setting, they appear to have difficulty generalizing the learned walking ability back to their home or community. To date, no effective intervention approaches have been designed to resolve this CDL for people with PD. One approach that could potentially reduce CDL is to practice a motor task in multiple contexts. Learning a task in multiple contexts would make the participants less likely to rely on the inconsistent ambient contextual information, and could facilitate the generation of stronger motor program and schema. No studies to date have investigated the effects of multiple practice contexts on reducing CDL in people with PD. It is also not clear the characteristics of the participants who would benefit from this type of intervention.

This study aims to investigate the effects of gait training in multiple practice contexts on CDL in individuals with PD. Additionally, this study aims to identify the characteristics of the participants who benefit from the intervention.

Sixty-four participants diagnosed with idiopathic PD will be recruited and randomized into 2 groups: Single-room and Two-room groups. The participants will receive 45 minutes of treadmill training and 15 minutes of over-ground gait training for 12 sessions. Throughout the training sessions, the Single-room group will practice walking in the same room, while the Two-room group will receive gait training in 2 distinct rooms. All participants will be assessed by a blinded evaluator before, immediately after, and 4 weeks after the intervention. The participants will undergo a series of cognitive, motor behavior, and neurophysiological examinations.

Group × time repeated measures analysis of variance (ANOVA) and the partial eta square (η2) will be calculated to determine the intervention effects on the outcome measures. Multiple linear regression analyses will be performed to determine the demographic, cognitive and motor behavior, and neurophysiological characteristics of participants who benefit from the proposed interventions.

Conditions

  • Parkinson Disease

Interventions

BEHAVIORAL

treadmill training and overground gait training

The participants will be randomized into two different groups, and they will receive treadmill and overground gait training in one or two rooms.

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Ya-Yun Lee, PhD · National Taiwan University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-12-25
Primary Completion
2020-07-31
Completion
2020-07-31

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03368443 on ClinicalTrials.gov