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Physical fitness is foundational to the U.S. Army as a component of combat readiness, and accurate assessment of readiness is imperative for mission success and soldiers’ health and safety. To this end, the Army has developed the Army Combat Fitness Test (ACFT), which more accurately assesses these abilities and may aid development of a more combat-ready force. Reserve Officer Training Corps (ROTC) programs nationwide are often challenged by limited structured training time, as well as access to equipment and training space. Development and/or adaptation of a training program that addresses these limitations would benefit ROTC programs nationally. Therefore, the purpose of this study was to compare a standard military fitness training program to High-Intensity Functional Training (HIFT) in ROTC cadets. We hypothesized that a HIFT program would be more effective than the standard military program developed by the DoD on both ACFT performance and assessment of common Warrior Tasks and Battle Drills (WTBDs). Materials and Methods This study was approved by the Institutional Review Board at Colorado State University (CSU). Participants were recruited from CSU’s Army ROTC program. Before and upon completion of the training intervention, participants completed a battery of testing, conducted over three visits. The first visit consisted of body composition assessment and measurement of aerobic capacity (VO2max). Visit 2 was the ACFT, and Visit 3 was a “benchmark test” to assess WTBD performance. Participants then completed 10 weeks of group training. Once weekly, participants completed the Daily Analysis of Life Demands for Athletes (DALDA) survey to monitor the risk of overtraining. Statistical Analysis Responses to training and survey responses were examined using two-way analysis of variance (time × group) with repeated measures. Baseline characteristics were compared using Student’s t-test to assess pre-intervention differences between groups. Pearson product correlations were used to test relationships between ACFT performance, body composition, and performance on the benchmark assessment. The significance level alpha was set at P &amp;lt; .05. Results Twenty-five men and 10 women competed the study (n = 35). Mean age was 19.8 ± 1.3 years, range 18-23. There were no significant changes in absolute or relative VO2max within or between groups. We found no difference in body mass, but did find a small but statistically significant favorable change in body composition, with no difference between groups. Overall ACFT scores and scores in five of the six events increased significantly across both groups, with no significant differences between groups. For the benchmark test, there was no significant difference between pre- and post-intervention benchmark scores, time to completion, 1,600-m ruck time, or accuracy. DALDA survey results indicate no apparent risk for overtraining. Conclusion Three 60-minute sessions per week of moderate-high-intensity training elicited improvements in ACFT scores, with no statistically significant differences between training programs. For this population of ROTC cadets, implementing a structured training program with expert oversight appears to be effective. Based on the successes and unanticipated challenges encountered in this study, training programs that emphasize intensity, train a wide variety of movements, maximize adherence, and are adaptable to a variety of situations are likely to be successful at improving ACFT scores.

Evaluation of Two Training Programs Designed to Enhance Performance on the Army Combat Fitness Test Among ROTC Cadets