Evidence map›Paper›PMID 36822238›Full record

Trial reportThe American journal of clinical nutrition2023

Smartphone prediction of skeletal muscle mass: model development and validation in adults.

Cassidy McCarthy, Grant M Tinsley, Shengping Yang, Brian A Irving, Michael C Wong, Jonathan P Bennett, John A Shepherd, Steven B Heymsfield

3 registry-linked trialsOpen access · greenAbstract readClinical Trial
In one paragraph

Trial report in The American journal of clinical nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 3% of its field
1 · What the graph read from 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.

2 · The registry

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.

NCT03637855 completednot on this map

Optical Body Composition and Health Assessment (Shape Up! Adults) Study

TypeobservationalSponsorUniversity of HawaiiRan2016 to 2021Enrolled696ConditionsHealthy
NCT03771417 nacompletednot on this map

Resistance Exercise and Low-Intensity Physical Activity Breaks in Sedentary Time to Improve Skeletal Muscle and Cardiometabolic Health in Older Adults-REALPA Breaks in Sedentary Time Pilot Study

TypeinterventionalSponsorLouisiana State University and A&M CollegeRan2019 to 2023Enrolled24ConditionsAging, Sarcopenia, Disability Physical, Cardiovascular DiseasesArmsExercise Intervention
NCT05217524 completednot on this map

Evaluation of the Accuracy of a Novel Smartwatch Bioimpedance Device for Assessment of Body Composition

TypeobservationalSponsorPennington Biomedical Research CenterRan2021 to 2022Enrolled110ConditionsObesity, OverweightArmsGalaxy BIA watch
3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  8. D3BT: Dynamic 3D Body Transformer for Body Fat Percentage Assessment.IEEE journal of biomedical and health informatics · 2025
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  18. Predicting Nonalcoholic Fatty Liver Disease in Obese Populations with 3D Body Scans.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Cassidy McCarthyPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, United States.
Grant M TinsleyDepartment of Kinesiology and Sport Management, Texas Tech University, Lubbock, TX, United States.
Shengping YangPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, United States.
Brian A IrvingSchool of Kinesiology, Louisiana State University, Baton Rouge, LA, United States.
Michael C WongUniversity of Hawaii Cancer Center, Honolulu, HI, United States.
Jonathan P BennettUniversity of Hawaii Cancer Center, Honolulu, HI, United States.
John A ShepherdUniversity of Hawaii Cancer Center, Honolulu, HI, United States.
Steven B HeymsfieldPennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, United States. Electronic address: steven.heymsfield@pbrc.edu.
Pennington Biomedical Research Center · USUniversity of Hawaiʻi at Mānoa · USLouisiana State University · USTexas Tech University · US

Funding

ROLE OF DIETARY CONSTITUENTS ON GENE EXPRESSION IN INTESTINAL EPITHELIUMP30DK040561 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Elizabeth Austen Lawson, Takara Leah Stanley · 1994 to 2026
$31.6M
Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Sujoy Ghosh · 2005 to 2026
$26.5M
Training in Cardiovascular Research at the University of HawaiiT32HL115505 · NHLBI · UNIVERSITY OF HAWAII AT MANOA · PI Michelle D Tallquist · 2012 to 2026
$3.8M
Optical Body Composition and Health AssessmentR01DK109008 · NIDDK · UNIVERSITY OF HAWAII AT MANOA · PI HEYMSFIELD, STEVEN, SHEPHERD, JOHN ALAN · 2016 to 2020
$3.2M
Resistance Exercise and Low-Intensity Physical Activity Breaks in Sedentary Time to Improve Skeletal Muscle and Cardiometabolic Health in Older Adults – REALPA Breaks in Sedentary Time Pilot StudyR21AG058181 · NIA · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI IRVING, BRIAN A. · 2018 to 2020
$449k
NHLBI NIH HHS T32 HL115505NIA NIH HHS R21 AG058181NIDDK NIH HHS P30 DK040561NIDDK NIH HHS P30 DK072476NIDDK NIH HHS R01 DK109008
6 · The paper itself

Abstract

backgroundSkeletal muscle is a large and clinically relevant body component that has been difficult and impractical to quantify outside of specialized facilities. Advances in smartphone technology now provide the opportunity to quantify multiple body surface dimensions such as circumferences, lengths, surface areas, and volumes.

objectivesThis study aimed to test the hypothesis that anthropometric body measurements acquired with a smartphone application can be used to accurately estimate an adult's level of muscularity.

methodsAppendicular lean mass (ALM) measured by DXA served as the reference for muscularity in a sample of 322 adults. Participants also had digital anthropometric dimensions (circumferences, lengths, and regional and total body surface areas and volumes) quantified with a 20-camera 3D imaging system. Least absolute shrinkage and selection operator (LASSO) regression procedures were used to develop the ALM prediction equations in a portion of the sample, and these models were tested in the remainder of the sample. Then, the accuracy of the prediction models was cross-validated in a second independent sample of 53 adults who underwent ALM estimation by DXA and the same digital anthropometric estimates acquired with a smartphone application.

resultsLASSO models included multiple significant demographic and 3D digital anthropometric predictor variables. Evaluation of the models in the testing sample indicated respective RMSEs in women and men of 1.56 kg and 1.53 kg and R

conclusionsSmartphone image capture capabilities combined with device software applications can now provide accurate renditions of the adult muscularity phenotype outside of specialized laboratory facilities. Am J Clin Nutr 2023;x:xx. This trial was registered at clinicaltrials.gov as NCT03637855 (https://clinicaltrials.gov/ct2/show/NCT03637855), NCT05217524 (https://clinicaltrials.gov/ct2/show/NCT05217524), and NCT03771417 (https://clinicaltrials.gov/ct2/show/NCT03771417).

Indexed as

Body CompositionSmartphoneAbsorptiometry, PhotonAnthropometryFemaleHumansMuscle, Skeletalbody compositionmalnutritionnutritional assessmentobesityoptical imagingsarcopenia

Identifiers

PMID36822238
PMCPMC10315403
OpenAlexW4319601781

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.