Validity and reliability of an electromyography-based similarity index to quantify lower extremity selective voluntary motor control in children with cerebral palsy

Autor: Julia Balzer, Annina Fahr, Jeffrey W. Keller, Marietta L. van der Linden, Thomas H. Mercer, Hubertus J.A. van Hedel
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Clinical Neurophysiology Practice, Vol 7, Iss , Pp 107-114 (2022)
Druh dokumentu: article
ISSN: 2467-981X
DOI: 10.1016/j.cnp.2022.03.003
Popis: Objective: To quantify selective voluntary motor control (SVMC) objectively and more precisely, we combined the “Selective Control Assessment of the Lower Extremity” (SCALE) with surface electromyography. The resulting Similarity Index (SI) measures the similarity of muscle activation patterns. This study evaluated the preliminary validity and reliability of this novel SISCALE measure in children with cerebral palsy (CP). Methods: We investigated concurrent validity by correlating the SISCALE of 24 children with CP (median age 10.6 years) with comparator assessments. For discriminative validity, the patients’ SISCALE scores were compared to 31 neurologically intact age-matched peers. Test-retest reliability was quantified using intraclass correlation coefficients (ICC) and minimal detectable change (MDC) values. Results: The SISCALE correlated strongly with the SCALE (ρ = 0.90, p
Databáze: Directory of Open Access Journals