Related Experiment Video
Updated: Mar 7, 2026

Author Spotlight: Advancements in 3D Optical Imaging for Comprehensive Body Composition Assessment in Modern Research
Published on: June 7, 2024
Differences in Cardiometabolic Health, Body Composition, and Physical Performance Profiles Based on the Body
Drew E Gonzalez1, Audrey Loffler, Benjamin P Doyle
1From the Occupational, Performance, and Nutrition Lab, Sam Houston State University, Huntsville, Texas (D.E.G.); Tactical Athlete Research Unit, Department of Kinesiology and Sports Management, Texas A&M University, College Station, Texas (D.E.G., A.L., B.P.D., J.D.T., J.B.M., S.E.M.); Department of Kinesiology & Sport Management, Sydney and JL Huffines Institute for Sports Medicine and Human Performance, Texas A&M University, College Station, Texas (D.E.G., B.P.D., J.DT., J.B.M., S.E.M.); Front Line Mobile Health, PLLC, Granbury, Texas (M.J.C.); Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia (M.J.C.); Fort Worth Fire Department, Fort Worth, Texas (B.N.); Neuromuscular and Occupational Performance Laboratory, Department of Kinesiology and Sport Management, Texas Tech University, Lubbock, Texas (J.A.M.); School of Kinesiology, Applied Health, and Recreation, Oklahoma State University, Stillwater, Okhlahoma (J.J.D.); Tactical Fitness and Nutrition Lab, Oklahoma State University, Stillwater, Okhlahoma (J.J.D.).
Objective:
This study aimed to characterize trends in body roundness index (BRI) among first responders and examine differences in health and fitness across BRI-based quartiles.
Methods:
Archival data from 158 first responders-97 firefighters and 61 law enforcement officers (LEOs)-were analyzed.
Results:
Differences were observed in body composition and physical performance parameters, with the first quartile (Q1) BRI group exhibiting the most favorable profiles. These differences remained after adjusting for age, especially compared with the Q4 group. Blood biomarkers showed minimal differences, with a trend toward lower fasting blood glucose in Q1. Firefighters showed poorer health indices but higher fitness than law enforcement officers, consistent with past research.
Conclusions:
BRI is a useful, potentially cost-effective tool for first responders to assess health and wellness annually and quarterly without clinical equipment.
Related Concept Videos
Obesity
Assessment of the Cardiovascular System I: Subjective Data
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
Coronary Artery Disease I: Introduction

