Trial reportPloS one2015
Air displacement plethysmography versus dual-energy x-ray absorptiometry in underweight, normal-weight, and overweight/obese individuals.
Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.
- Validity and reliability of portable A-mode ultrasound in measuring body fat percentage: A systematic review with meta-analysis.PloS one · 2024Pooled it
- Endocrinopathies, Bone Health, and Insulin Resistance in Patients with Fanconi Anemia after Hematopoietic Cell Transplantation.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2016Trial
- Assessing body composition via a smartphone computer vision application: High repeatability but method-dependent agreement compared with BODPOD and Inbody.PLOS digital health · 2026Article
- Deep Learning-Based Automatic Muscle Segmentation of the Thigh Using Lower Extremity CT Images.Diagnostics (Basel, Switzerland) · 2025Article
- Cancer-Associated Cachexia: Bridging Clinical Findings with Mechanistic Insights in Human Studies.Cancer discovery · 2025Review
- Comparison of Body Composition Methods for Estimating Body Fat Percentage in Lower Limb Prosthesis Users.Canadian prosthetics & orthotics journal · 2023Article
- Lower hypothalamic volume with lower body mass index is associated with shorter survival in patients with amyotrophic lateral sclerosis.European journal of neurology · 2023Article
- Smartphone camera based assessment of adiposity: a validation study.NPJ digital medicine · 2022Article
- Adipose tissue measurement in clinical research for obesity, type 2 diabetes and NAFLD/NASH.Endocrinology, diabetes & metabolism · 2022Review
- Concordance between Laboratory and Field Methods for the Assessment of Body Fat in Olympic Combat Athletes: Analysis of the Influence of Adiposity.International journal of environmental research and public health · 2022Article
- Official position of the Brazilian Association of Bone Assessment and Metabolism (ABRASSO) on the evaluation of body composition by densitometry: part I (technical aspects)-general concepts, indications, acquisition, and analysis.Advances in rheumatology (London, England) · 2022Article
- Validity of Body-Composition Methods across Racial and Ethnic Populations.Advances in nutrition (Bethesda, Md.) · 2021Review
- Multicomponent density models for body composition: Review of the dual energy X-ray absorptiometry volume approach.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2021Review
- Come Back Skinfolds, All Is Forgiven: A Narrative Review of the Efficacy of Common Body Composition Methods in Applied Sports Practice.Nutrients · 2021Review
- Article
- Measuring Muscle Mass and Strength in Obesity: a Review of Various Methods.Obesity surgery · 2021Review
- Assessment of Body Composition and Nutritional Risks in Young Ballet Dancers - The Bioelectrical Impedance Analysis.Journal of electrical bioimpedance · 2020Article
- Equation Córdoba: A Simplified Method for Estimation of Body Fat (ECORE-BF).International journal of environmental research and public health · 2019Article
- An investigation into the effect of body mass index on the agreement between whole-body fat mass determined by MRI and air-displacement plethysmography.The British journal of radiology · 2019Article
- Practical measurement of body composition using bioelectrical impedance, air displacement plethysmography and ultrasound in stable outpatients with short bowel syndrome receiving home parenteral nutrition: comparison of agreement between the methods.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundAccurately estimating fat percentage is important for assessing health and determining treatment course. Methods of estimating body composition such as hydrostatic weighing or dual-energy x-ray absorptiometry (DXA), however, can be expensive, require extensive operator training, and, in the case of hydrostatic weighing, be highly burdensome for patients. Our objective was to evaluate air displacement plethysmography via the Bod Pod, a less burdensome method of estimating body fat percentage. In particular, we filled a gap in the literature by testing the Bod Pod at the lower extreme of the Body Mass Index (BMI) distribution.
findingsThree BMI groups were recruited and underwent both air displacement plethysmography and dual-energy x-ray absorptiometry. We recruited 30 healthy adults at the lower BMI distribution from the Calorie Restriction (CR) Society and followers of the CR Way. We also recruited 15 normal weight and 19 overweight/obese healthy adults from the general population. Both Siri and Brozek equations derived body fat percentage from the Bod Pod, and Bland-Altman analyses assessed agreement between the Bod Pod and DXA. Compared to DXA, the Bod Pod overestimated body fat percentage in thinner participants and underestimated body fat percentage in heavier participants, and the magnitude of difference was larger for underweight BMI participants, reaching 13% in some. The Bod Pod and DXA had smaller discrepancies in normal weight and overweight/obese participants.
conclusionsWhile less burdensome, clinicians should be aware that Bod Pod estimates may deviate from DXA estimates particularly at the lower end of the BMI distribution.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.