Effects of the Cross-Training in Patients With Multiple Sclerosis (CTSM)

March 27, 2017 updated by: Professor Franca Deriu, Università degli Studi di Sassari

Neurophysiological, Dynamometric, Functional and Clinical Assessment of the Cross-Training Effect in Patients With Multiple Sclerosis

The purpose of this study is to determine whether, in patients with multiple sclerosis presenting with marked asymmetry of strength, training the less-affected limb with a Cross-Training approach may induce a meaningful transfer of strength with neurophysiological, functional and clinical correlates, to the contralateral, more-impaired limb.

Study Overview

Detailed Description

Muscle weakness is a major disability that is responsible for deeply reducing the overall quality of life (QoL) of patients with Multiple Sclerosis (MS). Research has shown that strength training (ST) has a significant positive effect on the performance of daily living activities in people with MS, resulting in an increased QoL. Several ST methods are currently employed for reducing strength impairment in MS but no one regimen has been portrayed as superior to others. When strength impairment is prominently lateralized to one limb, training is commonly addressed to the weaker side in order to balance the deficit. However, such ST may not always be applicable to a severely weakened limb that is too compromised to sustain it. For these selected patients we hypothesize that training the less affected limb with a Cross Training (CT) approach may overcome the problem, also avoiding patients' frustration and potential withdrawals from rehabilitation programs.

Aim of this project is to investigate and compare in two groups of selected MS patients, with a marked asymmetry of strength, the effects induced on dynamometric, neurophysiological, functional and clinical outcomes by a CT of the less-impaired leg (CT group) compared to a ST of the more-impaired leg (ST group). In order to make comparisons with a population which is not exposed to the condition MS, a third group composed of healthy subjects will also be included in the study.

The research plan will be articulated in 5 phases (recruitment, baseline assessment, 6 week-intervention phase, post-intervention assessment and follow up at 12 weeks).

Study Type

Interventional

Enrollment (Actual)

45

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Sassari, Italy, 07100
        • Department of Clinical and Experimental Medicine, University of Sassari
      • Sassari, Italy, 07100
        • Department of Surgery, Microsurgery and Medical-Surgical Specialties
    • Sassari (SS)
      • Sassari, Sassari (SS), Italy, 07100
        • Department of Biomedical Sciences- University of Sassari

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

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age: 18-65 years
  • Expanded Disability Status Scale (EDSS) ≤6 (Pyramidal functional system ≥3)

Exclusion Criteria:

  • Clinically relevant cognitive disorders;
  • Disability caused by other diseases;
  • Medication with corticosteroids within three months prior to enrolment;
  • Medication with botulinum toxin within six months prior to enrolment;
  • Clinically or radiologically documented exacerbation within six months prior to enrolment;
  • Variations in disease-modifying drugs (DMD) within three months prior to enrolment;
  • Severe ataxia and postural instability (assessed with Berg Balance Scale);
  • Depression

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
Active Comparator: Cross-Training healthy subjects
A cohort of healthy subjects (N=15) will undergo a phase of intervention consisting of cross-training of the stronger limb employing an isokinetic contraction regimen at maximal intensity.
The phase of intervention will consist of a 6-week cross-training of the stronger limb employing an isokinetic contraction regimen at maximal intensity.
Active Comparator: Standard-Training multiple sclerosis
A cohort of patients with multiple sclerosis (N=15), presenting with a marked asymmetry in limb strength, will undergo a standard-training of the more-impaired limb employing an isokinetic contraction regimen at maximal intensity.
The phase of intervention will consist of a 6-week standard strength training of the more-impaired limb employing an isokinetic contraction regimen performed at maximal intensity.
Experimental: Cross-Training multiple sclerosis
A cohort of patients with multiple sclerosis (N=15), presenting with a marked asymmetry in limb strength, will undergo a cross-training of the less-impaired limb employing an isokinetic contraction regimen at maximal intensity.
The phase of intervention will consist of a 6-week cross-training of the less-impaired limb employing an isokinetic contraction regimen at maximal intensity.
No Intervention: Healthy Control
A cohort of healthy subjects (N=15) will undergo baseline assessment and a second evaluation after one month of no-intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Muscular strength
Time Frame: Muscular strength will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Strength changes in the weaker side compared to the contralateral, through isokinetic dynamometry.
Muscular strength will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Neural adaptations to Cross Training
Time Frame: Neural adaptations will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Neural adaptations to CT occurring at cortical and/or spinal level, through transcranial magnetic stimulation (TMS) and peripheral electrophysiological recordings.
Neural adaptations will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Walking performance
Time Frame: It will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Regarding the clinical and functional relevance to MS patients, changes from baseline in walking performance will be assessed through 6-Minute Walking Test (6MWT), which has been demonstrated to be a feasible, reproducible and reliable measure in MS and to be strongly correlated to subjective measures of ambulation; 10 Meter-Walk Test (10MWT), which estimates the walking speed at both comfortable and maximal velocities.
It will be assessed at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Fatigue
Time Frame: Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Modified Fatigue Impact Scale (MFIS): extracted from the Multiple Sclerosis Quality of Life Inventor. It consists of 21 items and provides an assessment of the effects of fatigue in terms of physical, cognitive, and psychosocial functioning.
Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Executive functions
Time Frame: Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Frontal Assessment Battery (FAB): it tests executive functions, in a form of an interview with 6 functional tasks covering 5 domains: memory, planning, attention, reflex and visual spatial. The FAB correlates with dysfunction in a variety of cognitive domains including attention, memory, and executive functions.
Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Spasticity symptom severity
Time Frame: Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Modified Ashworth Scale: it is a widely used qualitative scale for the assessment of spasticity symptom severity and measures resistance to passive stretch, scoring from 0 (no increase in tone) to 4 (affected parts rigid in flexion or extension).
Assessment at baseline, within one week from the completion of the 6-week rehabilitation phase and at 12-week follow up.
Gait Analysis for patients with Multiple Sclerosis
Time Frame: At baseline and post-intervention
At baseline and post-intervention

Collaborators and Investigators

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

Investigators

  • Study Director: Franca Deriu, MD; PhD, University of Sassari-Department of Biomedical Sciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

July 1, 2013

Primary Completion (Actual)

March 27, 2017

Study Completion (Actual)

March 27, 2017

Study Registration Dates

First Submitted

December 9, 2013

First Submitted That Met QC Criteria

December 9, 2013

First Posted (Estimate)

December 12, 2013

Study Record Updates

Last Update Posted (Actual)

March 29, 2017

Last Update Submitted That Met QC Criteria

March 27, 2017

Last Verified

March 1, 2017

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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