Quantitative Fatigue & Muscle Performance in Multiple Sclerosis

Status Active, not recruiting

Clinical Trial Summary

Fatigue is consistently rated as the top symptomatic complaint for individuals with multiple sclerosis (MS). Currently, the MS Fatigue Impact Scale (MFIS), a subsection of the Multiple Sclerosis Quality of Life (MSQoL), is the clinical standard used by neurologists for monitoring and tracking fatigue in individuals with MS. However, fatigue is multidimensional phenomenon and subjective measures have had poor or limited relationships with functional status. While previous study has focused on contributing factors to fatigue such as sleep disorders and diminished cortical excitability, this line of inquiry has neglected the role of muscle structure and function on fatigue in every day functional tasks. An alternative approach is to assess quantitative fatigue using anaerobic testing methods. However, more knowledge is needed to understand the role that quantitative fatigue plays in self-reported fatigue measures and function of daily activities. Our purpose is to determine the association between quantitative fatigue tests with performance-based measures of mobility and self-reported health-related quality of life. Our secondary goal is to understand how the intrinsic properties of muscle tissue influence muscle performance in Veterans with MS.

Clinical Trial Description

Participants will complete study assessments at the DC VAMC. Disease severity will be assessed by medical staff completing the EDSS. Peak torque assessment for the knee flexors and extensors will be performed on an isokinetic dynamometer (Biodex System 4). Muscle morphology measures of the rectus femoris will be obtained using diagnostic musculoskeletal B-mode ultrasound (Phillips EPIQ 7 180 Plus) with a 10 Mhz linear transducer. The sonographic measures will include muscle thickness and echogenicity. The mode of exercise testing and the type of muscle action will influence the assessment of fatigue. Therefore, isokinetic fatigue measures for the knee extensors will be assessed on separate visits (at least 48 hours apart). Performance-based measures of function will include an assessment of patient mobility and the 25-foot walk test. Muscle power will be estimated by the timed sit to stand test. Subjective measures of fatigue and quality of life include the MSQoL, MFIS, and Neurology Quality of Life Adult Fatigue Bank (AFB). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02913209
Study type	Observational
Source	Washington D.C. Veterans Affairs Medical Center
Contact
Status	Active, not recruiting
Phase
Start date	April 2016
Completion date	December 2020

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See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Quantitative Fatigue and Muscle Performance in Multiple Sclerosis

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms