High-intensity Resistance Training in People With Multiple Sclerosis Experiencing Fatigue

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

73 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-08-20

Study Completion Date

2022-06-30

Brief Summary

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Fatigue is one of the most frequently reported and disabling impairments in multiple sclerosis (MS) and is associated with activity limitations, participation restrictions and reduced health-related quality of life (HRQL).MS fatigue is thought to be related to the disease itself, where increased levels of inflammatory biological markers (cytokines) are contributing. Resistance training may have an anti-inflammatory effect where a higher intensity is thought to have a more profound effect. Moderate-intensity resistance training is well tolerated in people with MS (PwMS) and can reduce self-reported fatigue. There is, however, a lack of high-quality studies including only fatigued PwMS when evaluating exercise regimes. Furthermore, the optimal dose (i.e. the combination of duration, frequency and intensity) is not known. Our hypothesis is that high-intensity resistance training will have positive effects in fatigued PwMS on functioning (fatigue, mood, activities and participation) and wellbeing/HRQL; and a positive immunomodulatory effect measured by inflammatory biological markers in blood. Further, that high-intensity resistance training twice a week will be superior to once a week

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Detailed Description

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Multiple sclerosis (MS) is chronic inflammatory neurodegenerative disease. About two-thirds of persons with MS (PwMS) report MS-related fatigue. It is a most disabling impairment and is associated with activity limitations, participation restrictions and reduced health-related quality of life (HRQL). MS fatigue may be related directly to the disease, e.g. inflammation. Resistance training can have direct effects on the MS disease by modulating cytokine levels, where a higher intensity is thought to have a more profound effect. Thus, there are reasons to hypothesise that high-intensity resistance training might reduce fatigue in PwMS. There are, however, no randomized controlled trials (RCTs) on resistance training in PwMS with fatigue. Although the recommendation of resistance training for adults with chronic diseases is twice a week, most primary health-care providers in Sweden only offer supervised training once a week for a limited period, e.g. 8-12 weeks. Thus, our aims are to evaluate the effects of 12 weeks high-intensity resistance training on functioning (fatigue, mood, activities and participation), wellbeing/HRQL and on inflammatory biological markers (e.g. cytokines) in blood. In this two-armed single-blinded RCT, 90 PwMS with fatigue will be recruited and randomly assigned to receive high-intensity resistance training under the supervision from a physiotherapist twice a week (group A) or once a week (group B). Primary outcome is fatigue measured with a patient reported outcome, i.e. the Fatigue Scale for Motor and Cognitive Functions (FSMC), and a change-score of ten points is considered clinically meaningful. Secondary outcomes include measures of mood, participation, self-perceived impact of MS, wellbeing/HRQL and inflammatory biological markers in blood. Data will be collected at baseline and within a week after the last training session of the 12-week intervention. All participants will after the end of intervention be offered a prescription of physical activity (FaR), and have the opportunity for follow-up telephone calls at 3-, 6- and 12 months after the end of the intervention. Assessment of fatigue will also be performed at these follow-up telephone sessions. Fatigue assessments from a natural history cohort (Combat study) will be available for comparisons of natural fluctuations of fatigue.

Conditions

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Multiple Sclerosis Fatigue Exercise Therapy Resistance Training Cytokines

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a two-armed single-blinded randomized controlled trial of high-intensity resistance training in PwMS with fatigue where one group receive training twice a week (group A) and the other group once a week (group B). The randomization procedure will be performed after baseline assessments and will be concealed and based on computer-generated block randomization with block sizes of ten. No stratification will be used. Implementation of the random allocation will be done by means of sequentially numbered sealed opaque envelops.

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

A person with no further involvement in the study will manage the randomization. A research assistant will assign participants with an identification number which will be used during baseline and follow-up assessments to ensure blinding of the assessors. Thus, outcome assessors are blinded for group allocation. Data entry will be executed by a person blinded for group allocation.

Study Groups

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Group A

The program consists of high-intensity resistance training for 60 minutes twice a week for group A during 12 weeks at the Karolinska University Hospital under the supervision of a physiotherapist. Participants in group A will have different possible training alternatives every week to ensure availability, and they will train in groups of three to five persons/session.

Group Type EXPERIMENTAL

High-intensity resistance training

Intervention Type OTHER

The program consists of high-intensity resistance training for 60 minutes twice a week (group A) during 12 weeks

Group B

The program consists of high-intensity resistance training for 60 minutes once a week for group B during 12 weeks at the Karolinska University Hospital under the supervision of a physiotherapist. Participants in group B will have different possible training alternatives every week to ensure availability, and they will train in groups of three to five persons/session.

Group Type ACTIVE_COMPARATOR

Low frequency of high-intensity resistance training

Intervention Type OTHER

The program consists of high-intensity resistance training for 60 minutes once a week (group B) during 12 week

Interventions

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