Reliability of unconventional torso anthropometry using a three-dimensional scanner in peruvian children and adolescents [version 1; peer review: 1 approved with reservations, 1 not approved]

Carlos Alberto Delgado, Roberto Shimabuku, Erika Alarcón, Luis Huicho, Augusto Cesar Ferreira De Moraes

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Three-dimensional (3D) scanners have made it possible to measure and display body surface and shape with high precision. These are fast measurements with minimum discomfort, which is especially useful when children are involved. The objective was to assess the reliability and validity of a 3D-scanner for measuring unconventional torso parameters in children and adolescents. Methods: This is a sub-sample of the SAYCARE study, an observational multicentre research effort being conducted in six South American countries, aimed at developing methods to collect data on cardiovascular health biomarkers, lifestyles, and environmental, social and family risk factors. Images were captured using a portable scanner (iSense, Cubify, USA) attached to a Tablet 128Gb with OSX (Ipad-Air Apple, USA). Images were reshaped to exclude head, hair, arms and legs; area and volume were measured using 3D design software ((Rhinoceros for OSX, v5.02, USA). Results: The sub-sample for our study comprised 54 girls and 46 boys, aged 6 to 17 years old, from two private schools in Lima, Peru. Out of 100 participants, 82 were scanned twice. There was strong reliability (rho_c>0.80) between first and second measurements of area and volume in boys of every age group. In girls, the reliability coefficient was moderate (rho_c>0.70) only for area comparison in adolescents older than 10 years of age. The mean torso area was 0.55 m2 (SD 0.08) in girls and 0.63 m2 (SD 0.13) in boys. The overall mean torso volume was 24.4 l (SD 5.33) in girls and 31.47 l (SD 10.14) in boys. Area under ROC curve oscillates between 0.5707 and 0.6383 when volume/area ratio was compared to the selected “gold standard” (waist to height ratio > 0.5). Conclusion: Use of portable and low cost 3D-scanners provides a reliable but inaccurate alternative for area and volume torso measurements in children and adolescents.

Original languageEnglish
Article number259
JournalF1000Research
Volume7
DOIs
StatePublished - 2018

Bibliographical note

Funding Information:
The SAYCARE Study was supported mainly by Brazilian Government from National Counsel of Technological and Scientific Development (CNPq; proc. 471266/2013-2) and S?o Paulo State Government from S?o Paulo Research Foundation (FAPESP; proc. 2014/11468-6). The SAYCARE Study has also been co-funded by other agencies in the other countries: (i) Collaborative Projects Fund (R.D. No 501-2015-INSN-DG-OEA) granted by the Instituto Nacional de Salud del Ni?o, Lima, Per?; (ii) Sustainability Strategy at the University of Antioquia 2014-2015, Research group of social and economic determinants of health and nutrition, and Demography and Health Research Group at the University of Antioquia, Medellin, Colombia, and Interuniversity Services Corporation (CIS) from UdeA; (iii) Secretary of University Extension and Student Welfare, University of Buenos Aires; (iv) European Regional Development Fund (MICINN-FEDER) to GENUD Research Group. Dr. Augusto C?sar F. de Moraes was given a post-doctoral scholarship from S?o Paulo Research Foundation ? FAPESP (proc. 2014/13367-2 and 2015/14319-4). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Funding Information:
The SAYCARE Study was supported mainly by Brazilian Government from National Counsel of Technological and Scientific Development (CNPq; proc. 471266/2013-2) and São Paulo State Government from São Paulo Research Foundation (FAPESP; proc. 2014/11468-6). The SAYCARE Study has also been co-funded by other agencies in the other countries: (i) Collaborative Projects Fund (R.D. N°501-2015-INSN-DG-OEA) granted by the Instituto Nacional de Salud del Niño, Lima, Perú; (ii) Sustainability Strategy at the University of Antioquia 2014-2015, Research group of social and economic determinants of health and nutrition, and Demography and Health Research Group at the University of Antioquia, Medellin, Colombia, and Interuniversity Services Corporation (CIS) from UdeA; (iii) Secretary of University Extension and Student Welfare, University of Buenos Aires;

Funding Information:
Grant information: The SAYCARE Study was supported mainly by Brazilian Government from National Counsel of Technological and Scientific Development (CNPq; proc. 471266/2013-2) and São Paulo State Government from São Paulo Research Foundation (FAPESP; proc. 2014/11468-6). The SAYCARE Study has also been co-funded by other agencies in the other countries: (i) Collaborative Projects Fund (R.D. N 渂f01-2015-INSN-DG-OEA) granted by the Instituto Nacional de Salud del Niño, Lima, Perú; (ii) Sustainability Strategy at the University of Antioquia 2014-2015, Research group of social and economic determinants of health and nutrition, and Demography and Health Research Group at the University of Antioquia, Medellin, Colombia, and Interuniversity Services Corporation (CIS) from UdeA; (iii) Secretary of University Extension and Student Welfare, University of Buenos Aires; (iv) European Regional Development Fund (MICINN-FEDER) to GENUD Research Group. Dr. Augusto César F. de Moraes was given a post-doctoral scholarship from São Paulo Research Foundation — FAPESP (proc. 2014/13367-2 and 2015/14319-4).

Publisher Copyright:
© 2018 Delgado CA et al.

Keywords

  • 3D
  • Accuracy
  • Adolescents
  • Anthropometry
  • Children
  • Reliability
  • Scanner
  • Three dimensional
  • Torso

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