by Álvaro Mateos-Angulo 1,2, José Andrés Salazar-Agulló 3, Cristina Roldán-Jiménez 1,2, Manuel Trinidad-Fernández 1,2 and Antonio Ignacio Cuesta-Vargas 1,2,4,*

1 Department of Physiotherapy, Universidad de Málaga, 29071 Málaga, Spain
2 Grupo Clinimetría F-14, Instituto de Investigación Biomédica de Málaga—IBIMA Plataforma BIONAND, 29590 Málaga, Spain
3 Centro de Salud El Palo, 29018 Málaga, Spain
4 School of Clinical Sciences of the Faculty of Health at the Queensland, University of Technology, Brisbane 4072, Australia
*Author to whom correspondence should be addressed.

Academic Editor: Antonio Barile

Diagnostics 2022, 12(11), 2743; https://doi.org/10.3390/diagnostics12112743

Received: 13 September 2022 / Revised: 24 October 2022 / Accepted: 3 November 2022 / 
Published: 9 November 2022

(This article belongs to the Special Issue Ultrasound Diagnosis and Guided Intervention of Musculoskeletal/Neuromuscular Pathology 2022)

Abstract
There is no specific designed diagnostic test for post-poliomyelitis syndrome. The most important symptoms of this syndrome are new loss of muscle strength and more fatigue. Previous studies have investigated muscle ultrasound parameters to distinguish neuromuscular disease patients from healthy controls. The aim of this study was to investigate if muscle thickness and echo intensity measured by ultrasound can discriminate post-poliomyelitis syndrome patients from healthy controls. A total of 29 post-polio patients and 27 healthy controls participated in this cross-sectional study. Anthropometric measures, muscle thickness, echo intensity using B-mode ultrasound in rectus femoris and biceps brachii muscles, and muscle strength test data were collected. Muscle thickness in rectus femoris was significantly lower in post-poliomyelitis patients than in healthy controls, but not in biceps brachii. Echo intensity in rectus femoris and biceps brachii was higher in post-poliomyelitis syndrome patients than in healthy controls. Correlations were found between muscle thickness and strength in the upper and lower limbs. The results of the present study showed that muscle thickness in rectus femoris and echo intensity in rectus femoris and biceps brachii can discriminate post-poliomyelitis syndrome patients from healthy controls. A better assessment is possible because it can observe differences and relevant parameters in this clinical population. View Full-Text

Keywords: neuromuscular diseases; post-poliomyelitis syndrome; ultrasonography; muscle strength; postviral fatigue syndrome

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