Journal
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
Volume 92, Issue 10, Pages 1594-1601Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.apmr.2011.05.017
Keywords
General health; Joint power; Joint torque; Neurologic disease; Rehabilitation
Categories
Funding
- American Society of Biomechanics
- Nebraska Research Initiative
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Huisinga JM, Filipi ML, Schmid KK, Stergiou N. Is there a relationship between fatigue questionnaires and gait mechanics in persons with multiple sclerosis? Arch Phys Med Rehabil 2011;92:1594-601. Objective: To evaluate reported fatigue levels and gait deficits in patients with multiple sclerosis (MS) to determine the relationships that may exist between fatigue in patients with MS and alterations in gait mechanics. Design: Cross-sectional. Setting: Biomechanics laboratory. Participants: Subjects with MS (n=32) and age- and sex-matched controls (n=30). Interventions: None. Main Outcome Measures: Fatigue Severity Scale (FSS), Modified Fatigue Index Scale (MFIS), and 36-Item Short Form Health Survey (SF-36) to assess fatigue and general health. Biomechanical gait analysis was performed to measure peak joint torques and powers in the sagittal plane at the ankle, knee, and hip. Correlations were performed between fatigue measures and degree of deficit within each patient with MS for each joint torque and power measure. Results: FSS score significantly correlated with deficits in ankle power generation at late stance and walking velocity. MFIS score significantly correlated with deficits in peak knee extensor torque and knee power absorption at early stance. SF-36 subscale scores correlated with several joint torque and power variables. Conclusions: Subjective fatigue rating scale scores alone should not be used as an indicator of motor disability or disease progression as it affects walking performance of patients with MS.
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