Reference Values for Isometric, Dynamic, and Asymmetry Leg Extension Strength in Patients with Multiple Sclerosis

Kora Portilla-Cueto, Carlos Medina-Pérez, Ena Monserrat Romero-Pérez, José Aldo Hernández-Murúa, Claudia Eliza Patrocinio de Oliveira, Fernanda de Souza-Teixeira, Jerónimo J González-Bernal, Carolina Vila-Chã and José Antonio de Paz
Additional contact information
Kora Portilla-Cueto: Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain
Carlos Medina-Pérez: Sciences Health School, University Isabel I, 09003 Burgos, Spain
Ena Monserrat Romero-Pérez: Division of Biological Sciences and Health, University of Sonora, Hermosillo 83000, Mexico
José Aldo Hernández-Murúa: Escuela Superior de Educación Física, Universidad Autónoma de Sinaloa, Culiacán 80040, Mexico
Claudia Eliza Patrocinio de Oliveira: Department of Physical Education, Federal University of Viçosa, 36570-000 Viçosa, Brazil
Fernanda de Souza-Teixeira: Exercise and Neuromuscular System Research Group, Superior School of Physical Education, Federal University of Pelotas, 96010-610 Pelotas, Brazil
Jerónimo J González-Bernal: Department of Health Sciences, University of Burgos, 09001 Burgos, Spain
Carolina Vila-Chã: Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
José Antonio de Paz: Institute of Biomedicine (IBIOMED), University of León, 24071 León, Spain

IJERPH, 2020, vol. 17, issue 21, 1-12

Abstract: Having recognized the value of resistance training in patients with multiple sclerosis (PwMS), there are a lack of lower limb normative reference values for one repetition maximum (1RM) and maximal voluntary isometric contraction (MVIC) in this population. Hence, the purposes of this study were to provide reference values for 1RM and MVIC of knee extensors in PwMS across the disability spectrum and to examine knee extension strength asymmetry. Three hundred and ninety PwMS participated in the study, performing MVIC and 1RM tests of bilateral (both legs together at once) and unilateral (each leg singly) knee extensors. There was no difference in 1RM according to the disease course of MS, but there was according to the degree of neurological disability, being more preserved in those with a lower degree of disability. MVIC tends to be higher in patients with relapsing–remitting MS respect those with progressive MS, and in patients with lower levels of neurological disability. Asymmetry above the values considered normal in 1RM was present in 20–60% of patients and 56–79% in the MVIC test, depending on the type of MS and tended to be lower in those with less disability. Reference values are given by quartiles for 1RM, MVIC, and asymmetry.

Keywords: strength; resistance training; multiple sclerosis; asymmetry; 1RM; maximal voluntary isometric contraction; reference values (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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