Validity and reliability of an iPad with a three-dimensional camera for posture imaging.
Cerebral palsy
Posture
Scoliosis
Surface topography
Windswept hip
Journal
Gait & posture
ISSN: 1879-2219
Titre abrégé: Gait Posture
Pays: England
ID NLM: 9416830
Informations de publication
Date de publication:
02 2019
02 2019
Historique:
received:
16
09
2018
revised:
19
11
2018
accepted:
13
12
2018
pubmed:
24
12
2018
medline:
23
4
2019
entrez:
24
12
2018
Statut:
ppublish
Résumé
It is important to quantify a static posture to evaluate the need for and effectiveness of interventions such as physical management, physiotherapy, spinal orthosis or surgical treatment on the alignment of body segments. Motion analysis systems can be used for this purpose, but they are expensive, require a high degree of technical experience and are not easily accessible. A simpler method is needed to quantify static posture. Assess validity and inter and intra rater reliability using an iPad with a 3-D camera to evaluate posture and postural deformity. A 3-D model of a lying posture, created using an iPad with a 3-D camera, was compared to a Qualisys motion analysis system of the same lying posture, the latter used as the gold standard. Markers on the trunk and the leg were captured by both systems, and results from distance and angle measurements were compared. All intra-class correlation coefficient values were above 0.98, the highest systematic error was 4.3 mm for length measurements and 0.2° for angle measurements. A 3-D model of a person, with markers on anatomical landmarks, created with an iPad with a 3-D camera, is a valid and reliable method of quantifying static posture. An iPad with a 3-D camera is a relatively inexpensive, valid and reliable method to quantify static posture in a clinical environment.
Sections du résumé
BACKGROUND
It is important to quantify a static posture to evaluate the need for and effectiveness of interventions such as physical management, physiotherapy, spinal orthosis or surgical treatment on the alignment of body segments. Motion analysis systems can be used for this purpose, but they are expensive, require a high degree of technical experience and are not easily accessible. A simpler method is needed to quantify static posture.
RESEARCH OBJECTIVE
Assess validity and inter and intra rater reliability using an iPad with a 3-D camera to evaluate posture and postural deformity.
METHOD
A 3-D model of a lying posture, created using an iPad with a 3-D camera, was compared to a Qualisys motion analysis system of the same lying posture, the latter used as the gold standard. Markers on the trunk and the leg were captured by both systems, and results from distance and angle measurements were compared.
RESULTS
All intra-class correlation coefficient values were above 0.98, the highest systematic error was 4.3 mm for length measurements and 0.2° for angle measurements.
SIGNIFICANCE
A 3-D model of a person, with markers on anatomical landmarks, created with an iPad with a 3-D camera, is a valid and reliable method of quantifying static posture.
CONCLUSION
An iPad with a 3-D camera is a relatively inexpensive, valid and reliable method to quantify static posture in a clinical environment.
Identifiants
pubmed: 30580201
pii: S0966-6362(18)31575-3
doi: 10.1016/j.gaitpost.2018.12.018
pii:
doi:
Types de publication
Comparative Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
357-362Informations de copyright
Copyright © 2018 The Authors. Published by Elsevier B.V. All rights reserved.