Reference values for isometric, dynamic, and asymmetry leg extension strength in patients with multiple sclerosis

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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.

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CITATION STYLE

APA

Portilla-Cueto, K., Medina-Pérez, C., Romero-Pérez, E. M., Hernández-Murúa, J. A., de Oliveira, C. E. P., de Souza-Teixeira, F., … de Paz, J. A. (2020). Reference values for isometric, dynamic, and asymmetry leg extension strength in patients with multiple sclerosis. International Journal of Environmental Research and Public Health, 17(21), 1–13. https://doi.org/10.3390/ijerph17218083

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