Validation of a three-dimensional body scanner for body composition measures

2017 ◽  
Vol 72 (8) ◽  
pp. 1191-1194 ◽  
Author(s):  
Michelle M. Harbin ◽  
Alexander Kasak ◽  
Joseph D. Ostrem ◽  
Donald R. Dengel
Keyword(s):  
Body Composition ◽  
Three Dimensional ◽  
Body Scanner

Validity of a Three-Dimensional Body Scanner: Comparison Against a 4-Compartment Model and Dual Energy X-Ray Absorptiometry

2020 ◽  
Author(s):  
Hannah E. Cabre ◽  
Malia N.M. Blue ◽  
Katie R. Hirsch ◽  
Gabrielle J Brewer ◽  
Lacey Marie Gould ◽  
...  
Keyword(s):  
Body Composition ◽  
Total Error ◽  
Three Dimensional ◽  
Bioelectrical Impedance ◽  
Compartment Model ◽  
3D Scanner ◽  
Body Composition Assessment ◽  
Air Displacement Plethysmography ◽  
X Ray ◽  
Body Scanner

Three-dimensional (3D) body scanner technology for body composition assessment is expanding. The aim of this study was to assess the validity of a 3D body scanner. 194 participants (43% male; Age: 23.52±5.47 yrs; BMI: 23.98±3.24 kg·m-2) were measured using 3D scanner and a 4-compartment (4C) model utilizing DXA, air displacement plethysmography, and bioelectrical impedance spectroscopy. Dependent t-tests, validity statistics including total error (TE), standard error of the estimate (SEE), constant error, and Bland-Altman analyses were utilized. Compared to 4C, 3D scanner FM [mean difference (MD; 3D- 4C): 2.66 kg±3.32 kg] and %BF (MD: 4.13%±5.36%) were significantly (p<0.001) over-predicted; FFM was significantly underpredicted (MD: -3.15 kg±4.75 kg; p<0.001). 3D demonstrated poor validity indicated by TE (%BF: 5.61%; FM: 4.50 kg; FFM: 5.69 kg). In contrast, there were no significant differences between 3D and DXA measures; 3D scanner demonstrated acceptable measurement for %BF (TE: 4.25%), FM (TE: 2.92 kg), and LM (TE: 3.86 kg). Compared to the 4C criterion, high TE values indicated 3D estimates were not valid. In contrast, 3D estimates produced acceptable measurement agreement when compared to DXA; an average overestimation of %BF by 5.31% (vs. 4C) and 4.20% (vs. DXA) may be expected. Novelty: • 3D body composition estimates are not valid compared to the 4-compartment criterion model. • 3D estimates appeared to be more valid in females, compared to males. • When compared to DXA, 3D estimates were acceptable.

Development of low cost three-dimensional body scanner using depth perception camera

2017 ◽  
Vol 29 (6) ◽  
pp. 857-867 ◽  
Author(s):  
Miyeon Lee ◽  
Dong Il Yoo ◽  
Sungmin Kim
Keyword(s):  
Depth Perception ◽  
Computer Network ◽  
Low Cost ◽  
Three Dimensional ◽  
Easy Access ◽  
Scanning System ◽  
Content Type ◽  
3D Data ◽  
Model Alignment ◽  
Body Scanner

Purpose The purpose of this paper is to develop a relatively inexpensive and easily movable three-dimensional (3D) body scanner. Design/methodology/approach Multiple depth perception cameras and a turntable were used to form the hardware and a client-server computer network was used to control the hardware. Findings A portable and inexpensive yet quite accurate body scanner system has been developed. Research limitations/implications The turntable mechanism and semi-automatic model alignment caused some error. Practical implications This scanner is expected to facilitate the acquisition of 3D human body or garment data easily for various research projects. Social implications Many researchers might have an easy access to 3D data of large object such as body or whole garment. Originality/value Inexpensive yet expandable scanning system has been developed using readily available components.

scholarly journals Come Back Skinfolds, All Is Forgiven: A Narrative Review of the Efficacy of Common Body Composition Methods in Applied Sports Practice

Nutrients ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 1075
Author(s):  
Andreas M. Kasper ◽  
Carl Langan-Evans ◽  
James F. Hudson ◽  
Thomas E. Brownlee ◽  
Liam D. Harper ◽  
...  
Keyword(s):  
Body Composition ◽  
Three Dimensional ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Skinfold Thickness ◽  
Fat Free Mass ◽  
Assessment Tools ◽  
Ultra Sound ◽  
Hydration Status ◽  
Routine Practice

Whilst the assessment of body composition is routine practice in sport, there remains considerable debate on the best tools available, with the chosen technique often based upon convenience rather than understanding the method and its limitations. The aim of this manuscript was threefold: (1) provide an overview of the common methodologies used within sport to measure body composition, specifically hydro-densitometry, air displacement plethysmography, bioelectrical impedance analysis and spectroscopy, ultra-sound, three-dimensional scanning, dual-energy x-ray absorptiometry (DXA) and skinfold thickness; (2) compare the efficacy of what are widely believed to be the most accurate (DXA) and practical (skinfold thickness) assessment tools and (3) provide a framework to help select the most appropriate assessment in applied sports practice including insights from the authors’ experiences working in elite sport. Traditionally, skinfold thickness has been the most popular method of body composition but the use of DXA has increased in recent years, with a wide held belief that it is the criterion standard. When bone mineral content needs to be assessed, and/or when it is necessary to take limb-specific estimations of fat and fat-free mass, then DXA appears to be the preferred method, although it is crucial to be aware of the logistical constraints required to produce reliable data, including controlling food intake, prior exercise and hydration status. However, given the need for simplicity and after considering the evidence across all assessment methods, skinfolds appear to be the least affected by day-to-day variability, leading to the conclusion ‘come back skinfolds, all is forgiven’.

scholarly journals Assessment of adolescent idiopathic scoliosis from body scanner image by finite element simulations

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0243736
Author(s):  
Alexander T. D. Grünwald ◽  
Susmita Roy ◽  
Ana Alves-Pinto ◽  
Renée Lampe
Keyword(s):  
Finite Element ◽  
Adolescent Idiopathic Scoliosis ◽  
Idiopathic Scoliosis ◽  
Vertebral Column ◽  
Three Dimensional ◽  
Axial Rotation ◽  
Patient Specific ◽  
X Rays ◽  
Spinal Curvatures ◽  
Body Scanner

Adolescent idiopathic scoliosis, is a three-dimensional spinal deformity characterized by lateral curvature and axial rotation around the vertical body axis of the spine, the cause of which is yet unknown. The fast progression entails regular clinical monitoring, including X-rays. Here we present an approach to evaluate scoliosis from the three-dimensional image of a patient’s torso, captured by an ionizing radiation free body scanner, in combination with a model of the ribcage and spine. A skeletal structure of the ribcage and vertebral column was modelled with computer aided designed software and was used as an initial structure for macroscopic finite element method simulations. The basic vertebral column model was created for an adult female in an upright position. The model was then used to simulate the patient specific scoliotic spine configurations. The simulations showed that a lateral translation of a vertebral body results in an effective axial rotation and could reproduce the spinal curvatures. The combined method of three-dimensional body scan and finite element model simulations thus provide quantitative anatomical information about the position, rotation and inclination of the thoracic and lumbar vertebrae within a three-dimensional torso. Furthermore, the simulations showed unequal distributions of stress and strain profiles across the intervertebral discs, due to their distortions, which might help to further understand the pathogenesis of scoliosis.

Body measurements with 3D body scanner: the case of female population in Saudi Arabia

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Moudi Almousa
Keyword(s):  
Three Dimensional ◽  
Target Population ◽  
Regression Equations ◽  
Female Population ◽  
Content Type ◽  
Body Scanning ◽  
Sizing System ◽  
Body Scanner ◽  
Girth Measurement ◽  
Anthropometric Study

Purpose The purpose of this paper was to develop the first standard apparel sizing system for Saudi adult female population originating from anthropometric study using three-dimensional (3D) body scanner. Design/methodology/approach An anthropometric survey was conducted in four regions of the country where 1,074 participants between the ages of 18 and 63 were scanned using white light 3D body scanner. K-means cluster analysis using stature and hip girth as control variables produced the proposed sizing system, whereas regression equations were used to determine the parameters between measurements of different sizes. Findings Three sizing groups with 12 size designations in each totalling 36 size designations were identified. The sizing charts developed in this study show that key girth measurement ranges of chest, waist and hips are comparable to that of ISO standard and (ASTM D5585-11), while the Saudi female population falls into shorter height brackets than ISO and ASTM standards. Originality/value In this study, the first anthropometric database for Saudi female population was established using 3D body scanning technology, and a sizing system for this target population was developed.

Changes in Body Esteem After Viewing a 3D Full-Body Representation of Oneself

2019 ◽  
Vol 111 (4) ◽  
pp. 24-34
Author(s):  
Hayden A. Lafever ◽  
Thomas M. Brinthaupt ◽  
Frederick S. Cottle ◽  
Mary Beth Asbury
Keyword(s):  
Body Image ◽  
Three Dimensional ◽  
Body Esteem ◽  
Body Representation ◽  
Family And Consumer Sciences ◽  
The Body ◽  
Human Form ◽  
Consumer Sciences ◽  
Body Scanner ◽  
Post Assessment

Three-dimensional (3D) body scanning is becoming an increasingly popular tool for research in the field of family and consumer sciences (FCS) because it quickly and accurately measures constructs that describe the human form. This study compared viewing a 3D body representation to viewing a two-dimensional (2D) representation and whether the effects of these assessments varied by gender. College-student participants (N = 164, 63 women, 101 men) were randomly assigned to one of two different body image groups, a 3D image and a somatomorphic (2D) assessment of body shape. Participants in both conditions completed a body-esteem pre-assessment, had their bodies scanned by a KX-16 body scanner, assessed the copy of their 3D or 2D body image, and then completed the body-esteem post-assessment. The 3D body scan group reported larger drops in body esteem than did the 2D group from pretest to posttest. More specifically, women in the 3D condition reported a larger drop in body esteem from pretest to posttest compared to what the men reported. The results suggest that using a 3D body scanner could have negative short-term effects on body esteem.

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