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Carmona-Pérez C, Pérez-Ruiz A, Garrido-Castro JL, Vidal FT, Alcaraz-Clariana S, García-Luque L, Rodrigues-de-Souza DP, Alburquerque-Sendín F. Design, Validity, and Reliability of a New Test, Based on an Inertial Measurement Unit System, for Measuring Cervical Posture and Motor Control in Children with Cerebral Palsy. Diagnostics (Basel) 2020; 10:E661. [PMID: 32882885 PMCID: PMC7555956 DOI: 10.3390/diagnostics10090661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/27/2020] [Accepted: 08/31/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE The aim of this study was to design and propose a new test based on inertial measurement unit (IMU) technology, for measuring cervical posture and motor control in children with cerebral palsy (CP) and to evaluate its validity and reliability. METHODS Twenty-four individuals with CP (4-14 years) and 24 gender- and age-matched controls were evaluated with a new test based on IMU technology to identify and measure any movement in the three spatial planes while the individual is seated watching a two-minute video. An ellipse was obtained encompassing 95% of the flexion/extension and rotation movements in the sagittal and transversal planes. The protocol was repeated on two occasions separated by 3 to 5 days. Construct and concurrent validity were assessed by determining the discriminant capacity of the new test and by identifying associations between functional measures and the new test outcomes. Relative reliability was determined using the intraclass correlation coefficient (ICC) for test-retest data. Absolute reliability was obtained by the standard error of measurement (SEM) and the Minimum Detectable Change at a 90% confidence level (MDC90). RESULTS The discriminant capacity of the area and both dimensions of the new test was high (Area Under the Curve ≈ 0.8), and consistent multiple regression models were identified to explain functional measures with new test results and sociodemographic data. A consistent trend of ICCs higher than 0.8 was identified for CP individuals. Finally, the SEM can be considered low in both groups, although the high variability among individuals determined some high MDC90 values, mainly in the CP group. CONCLUSIONS The new test, based on IMU data, is valid and reliable for evaluating posture and motor control in children with CP.
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Affiliation(s)
- Cristina Carmona-Pérez
- Centro de Recuperación Neurológica de Córdoba (CEDANE), 14005 Córdoba, Spain;
- Doctoral Program in Biomedicine, University of Córdoba, 14004 Córdoba, Spain; (S.A.-C.); (L.G.-L.)
| | - Alberto Pérez-Ruiz
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Córdoba, 14004 Córdoba, Spain; (A.P.-R.); (F.A.-S.)
| | - Juan L. Garrido-Castro
- Department of Computer Science and Numerical Analysis, Rabanales Campus, University of Córdoba, 14071 Córdoba, Spain; (J.L.G.-C.); (F.T.V.)
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Córdoba, Spain
| | - Francisco Torres Vidal
- Department of Computer Science and Numerical Analysis, Rabanales Campus, University of Córdoba, 14071 Córdoba, Spain; (J.L.G.-C.); (F.T.V.)
| | - Sandra Alcaraz-Clariana
- Doctoral Program in Biomedicine, University of Córdoba, 14004 Córdoba, Spain; (S.A.-C.); (L.G.-L.)
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Córdoba, 14004 Córdoba, Spain; (A.P.-R.); (F.A.-S.)
| | - Lourdes García-Luque
- Doctoral Program in Biomedicine, University of Córdoba, 14004 Córdoba, Spain; (S.A.-C.); (L.G.-L.)
| | - Daiana Priscila Rodrigues-de-Souza
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Córdoba, 14004 Córdoba, Spain; (A.P.-R.); (F.A.-S.)
| | - Francisco Alburquerque-Sendín
- Department of Nursing, Pharmacology and Physical Therapy, Faculty of Medicine and Nursing, University of Córdoba, 14004 Córdoba, Spain; (A.P.-R.); (F.A.-S.)
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), 14004 Córdoba, Spain
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