The purpose of this study is to investigate underlying mechanisms possibly explaining the beneficial effects of progressive resistance training for people with multiple sclerosis.
Exercise in general, and progressive resistance training (PRT) in particular, is regarded as an important tool in the rehabilitation of people with multiple sclerosis (MS). Previous studies have reported positive effects of PRT on muscle strength, functional capacity, fatigue and quality of life. Also, a possible disease modifying effect has been proposed. However, the underlying physiological mechanisms that might explain these beneficial effects and the possible effects on disease progression are unresolved. Additionally, none of the previous studies has been concerned with the possible impact of MS progression type, gender and/or medication. The purpose of this randomized, controlled, gender stratified trial is to investigate underlying mechanisms possibly explaining the beneficial effects of progressive resistance training for people with multiple sclerosis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
35
Bi-weekly progressive resistance training
MS Clinic, Department of Neurology, Aarhus University Hospital
Aarhus C, Denmark
Sport Science, Aarhus University
Aarhus C, Denmark
Blood-borne biomarkers
Resting levels of bloodbourne biomarkers; * Cytokines * Neurotrophins
Time frame: Change from baseline to 24 weeks
Neuro-muscular function of knee extensors
By use of an isokinetic dynamometer, EMG and stimulation equipment the following will be assessed for the knee extensors; * Maximal muscle strength * Surface EMG * Central activation ratio
Time frame: Change from baseline to 24 weeks
Walking performance
Walking performance will be assessed by the; * Two minute walk test * 25-foot walk test * Chair rise test * Stair climb test
Time frame: Change from baseline to 24 weeks
Self-reported measures
The self-reported measures contains questionnaires regarding; * Fatigue (Fatigue Severity Scale, Modifies Fatigue Impact Scale) * Health-Related Quality of Life (SF-36) * Depression (Major Depression Inventory) * Disease impact (MS Impact Scale 29) * Walking Performance (MS Walking Scale 12)
Time frame: Change from baseline to 24 weeks
Brain volume
MRI-scans of the head will provide the following measurements; * Brain volume (analysed with SIENA) * Plaque incidence
Time frame: Change from baseline to 24 weeks
Body Composition
Weight and Bodyfat-% will be assessed with a Bodycomposition weight (Tanita SC220)
Time frame: Change from baseline to 24 weeks
Thigh muscle cross-sectional area
MRI-scans of the thigh will provide cross-sectional area of * m. quadriceps * m. hamstring
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Time frame: Change from baseline to 24 weeks