Amplitude and Rate of Intrinsic Feedback During Treadmill Training for Parkinson's Disease

June 12, 2015 updated by: Matthew Lasswell, Wilfrid Laurier University

The Therapeutic Contributions of Somatosensory Feedback During Exercise in Parkinson's Disease; A Randomized, Controlled Trial.

Treadmill training has been shown to be beneficial for reducing motor symptoms of Parkinson's disease (PD). The mechanisms for the therapeutic effects of treadmill training remain unknown. However, specific types of intrinsic feedback generated from muscle spindles (detect changes in length of muscle) and golgi tendon organs (detect muscle force) seem to be an important factor for achieving the reductions in motor scores. This study will compare a treadmill program that generates a high rate of intrinsic feedback to a treadmill program focused on generating a high magnitude of intrinsic feedback.

Study Overview

Study Type

Interventional

Enrollment (Actual)

48

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 79 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • diagnosis of Parkinson's disease
  • must be able to walk unassisted for 10 metres

Exclusion Criteria:

  • cardiovascular disease/history of stroke
  • Dementia
  • lower body injury that would be worsened by repetitive walking

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Treadmill Intervention 1: Rate Group
Participants in this condition will walk with a cadence (steps per minute) that is approximately 35% faster than comfortable walking pace. In this condition, participants will maintain a step length that is similar to that of their comfortable walking pace.
walking with a high cadence (steps per minute)
Experimental: Magnitude treadmill group
In this condition participants will walk on a treadmill with weights on their ankles to elicit a greater magnitude of instrinsic feedback from force sensitive golgi tendon organs
Placebo Comparator: regular treadmill walking
participants will walk at a comfortable self-selected pace on a treadmill

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Motor Section of the Unified Parkinson's Disease Rating Scale (UPDRS-III)
Time Frame: Pre assessments are conducted in the week prior to the treadmill program. Post are conducted during the week immediately following the program. Changes after the 6 week treadmill program are being examined

A measure of the motor symptom severity within Parkinsons. UPDRS III is a qualitative assessment performed by a trained clinician. Specifically, a change in UPDRS III from pre to post is the main outcome measure.

The UPDRS-III score is a summation of 27 tasks that are scored from 0-4. 0 meaning no impairment, and 4 representing extreme impairment, inability to complete task. Possible scores on the UPDRS-III range from 0 (no impairment) to 108 (extreme impairment).

Pre assessments are conducted in the week prior to the treadmill program. Post are conducted during the week immediately following the program. Changes after the 6 week treadmill program are being examined

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Spatiotemporal Aspects of Gait
Time Frame: pre test occurs within the week prior to the start of the treadmill training program. Post testing will occur during the week immediately following the 6 week treadmill training program.

Participants will walk on a pressure sensitive GAITRite carpet (Sparta, NJ), at both comfortable and fast paced walking speeds. Changes in gait characteristics from pre to post are what is being examined.

Quantitative measures of gait such as step time, step length, walking velocity, and others will be used in the analysis.

Spotters are always present to ensure safety during this assessment.

pre test occurs within the week prior to the start of the treadmill training program. Post testing will occur during the week immediately following the 6 week treadmill training program.
Static Posturography (Balance/Postural Control)
Time Frame: pre test occurs within the week prior to the start of the treadmill training program. Post testing will occur during the week immediately following the 6 week treadmill training program.
A Balance SD system from BIODEX (Shirley, NY) will be used to assess postural control. Changes from pre to post are what is being examined.
pre test occurs within the week prior to the start of the treadmill training program. Post testing will occur during the week immediately following the 6 week treadmill training program.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2013

Primary Completion (Actual)

August 1, 2014

Study Completion (Actual)

August 1, 2014

Study Registration Dates

First Submitted

October 9, 2013

First Submitted That Met QC Criteria

November 12, 2013

First Posted (Estimate)

November 19, 2013

Study Record Updates

Last Update Posted (Estimate)

June 17, 2015

Last Update Submitted That Met QC Criteria

June 12, 2015

Last Verified

June 1, 2015

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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