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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02010398
Other study ID # Prot.1160/L
Secondary ID
Status Completed
Phase N/A
First received December 9, 2013
Last updated March 27, 2017
Start date July 2013
Est. completion date March 27, 2017

Study information

Verified date March 2017
Source Università degli Studi di Sassari
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

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.


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).


Recruitment information / eligibility

Status Completed
Enrollment 45
Est. completion date March 27, 2017
Est. primary completion date March 27, 2017
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 65 Years
Eligibility 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 Design


Related Conditions & MeSH terms


Intervention

Other:
Cross-Training healthy subjects
The phase of intervention will consist of a 6-week cross-training of the stronger limb employing an isokinetic contraction regimen at maximal intensity.
Cross-Training multiple sclerosis
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.
Standard-training multiple sclerosis
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.

Locations

Country Name City State
Italy Department of Biomedical Sciences- University of Sassari Sassari Sassari (SS)
Italy Department of Clinical and Experimental Medicine, University of Sassari Sassari
Italy Department of Surgery, Microsurgery and Medical-Surgical Specialties Sassari

Sponsors (1)

Lead Sponsor Collaborator
Università degli Studi di Sassari

Country where clinical trial is conducted

Italy, 

References & Publications (1)

Manca A, Pisanu F, Ortu E, De Natale ER, Ginatempo F, Dragone D, Tolu E, Deriu F. A comprehensive assessment of the cross-training effect in ankle dorsiflexors of healthy subjects: A randomized controlled study. Gait Posture. 2015 Jun;42(1):1-6. doi: 10.1 — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Walking performance 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.
Other Fatigue 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.
Other Executive functions 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.
Other Spasticity symptom severity 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.
Other Gait Analysis for patients with Multiple Sclerosis At baseline and post-intervention
Primary Muscular strength 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 Neural adaptations to Cross Training 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.
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