Reliability and validity of depth camera 3D scanning to determine thigh volume
Deutscher übersetzter Titel: | Reliabilität and Validität von 3D-Scans mit einer Tiefenkamera zur Bestimmung des Oberschenkelvolumens |
---|---|
Autor: | Kordi, Mehdi; Weeks, Benjamin K.; Huby, Matthew; Barratt, Paul R.; Howatson, Glyn; Wheat, Jon Stephen |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 37 (2019), 1, S. 36-41, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2018.1480857 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201901000542 |
Quelle: | BISp |
Abstract
Gross thigh volume is a key anthropometric variable to predict sport performance and health. Currently, it is either estimated by using the frustum method, which is prone to high inter-and intra-observer error, or using medical imaging, which is expensive and time consuming. Depth camera 3D-imaging systems offer a cheap alternative to measure thigh volume but no between-session reliability or comparison to medical imaging has been made. This experiment established between-session reliability and examined agreement with magnetic resonance imaging (MRI). Forty-eight male cyclists had their thigh volume measured by the depth camera system on two occasions to establish between-session reliability. A subset of 32 participants also had lower body MRIs, through which agreement between the depth camera system and MRI was established. The results showed low between-session variability (CV = 1.7%; Absolute Typical Error = 112 cm3) when measuring thigh volume using the depth camera system. The depth camera systematically measured gross thigh volume 32.6cm3 lower than MRI. These results suggest that depth camera 3D-imaging systems are reliable tools for measuring thigh volume and show good agreement with MRI scanners, providing a cheap and time-saving alternative to medical imaging analysis.