What Drives Army Fitness Testing Success? Analysis of Body Composition, Performance, and Predictive Measures Among...

Area of Science:

• Sports Science
• Military Fitness
• Human Performance

Background:

• The Army Combat Fitness Test (ACFT) assesses multiple fitness domains, crucial for military readiness.
• Modifications to the ACFT, now the Army Fitness Test (AFT), necessitate re-evaluation of performance drivers.
• Understanding sex differences in fitness performance is vital for effective training programs.

Purpose of the Study:

• To examine sex differences in body composition and ACFT performance among ROTC cadets.
• To analyze performance stratification and longitudinal trends in ACFT scores.
• To identify predictors of ACFT success, including body composition and specific events.

Main Methods:

• A cross-sectional and longitudinal study involving 177 ROTC cadets (134 males, 43 females).
• Analysis of body composition (e.g., % body fat, Fat-Free Mass) and ACFT scores.
• Statistical methods including correlation, regression, and analysis of variance to assess relationships and differences.

Main Results:

• Sex differences were found in body composition and raw ACFT scores, but not overall ACFT scores.
• Fat-Free Mass (FFM) and FFM Index (FFMI) showed stronger associations with strength-power events in males.
• Hand Release Push-Ups and plank performance were strong predictors of total ACFT score, while body composition had limited predictive value overall.

Conclusions:

• ACFT performance varies by class year, with significant differences between the lowest and highest performance quintiles.
• A clustered, individualized training approach is recommended for ROTC cadets, considering sex-specific relationships between body composition and performance.
• Training programs should emphasize lean mass development to enhance ACFT performance, particularly for strength-related events.