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Comparing Body Composition Methods for Air Force Reserve Officers' Training Corps Cadets
Trey R Naylor1, Jessica E Kiss2, Adam M Fullenkamp2
1Kinesiology and Health Promotion, University of Kentucky, Seaton Center, Lexington, KY 40506, USA.
Military Medicine
|August 30, 2023
Summary
Body composition assessments in Air Force ROTC cadets are crucial for fitness and duty. While circumference measurements are efficient, they may underestimate body fat compared to air displacement plethysmography.
Area of Science:
- Military science
- Human physiology
- Sports medicine
Background:
- Body composition is vital for Reserve Officers' Training Corps (ROTC) cadets, impacting fitness, enlistment, and duty fulfillment.
- Current military standards use Body Mass Index (BMI) and circumference measurements, with non-compliance potentially leading to penalties.
- Accurate body composition assessment is essential, necessitating exploration of diverse measurement methods.
Purpose of the Study:
- To compare various body composition measurement techniques in Air Force ROTC cadets.
- To evaluate the accuracy of the military's standard circumference-based method against other techniques, including air displacement plethysmography (ADP).
Main Methods:
- Recruited participants from an Air Force ROTC Detachment.
- Collected anthropometric (height, weight) and body composition data using air displacement plethysmography (ADP), bioelectrical impedance analysis, skinfolds, and circumferences.
- Analyzed data using repeated-measure ANOVA and Bonferroni adjustment, comparing results against Air Force Instruction guidelines.
Main Results:
- Significant differences were found between skinfolds and bioelectrical impedance analysis (P = .025).
- Body Mass Index (BMI) identified more non-compliant cadets (n=7) than circumference measurements (n=1).
- The circumference-based method underestimated body fat compared to the "gold standard" air displacement plethysmography (ADP).
Conclusions:
- Circumference-based methods may provide sufficiently accurate body composition results for Air Force ROTC cadets.
- The military's circumference method underestimated body fat when compared to ADP.
- Air Force ROTC programs should consider alternative body composition methods for individual accuracy, with further research needed for efficient and precise individual-level assessments.
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