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Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

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Human Performance Optimization in Special Operations Forces: Structure, Outcomes, and Readiness Implications.

Anthony M Acevedo, Zachary Zeigler¹

¹College of Natural Sciences, Grand Canyon University, Phoenix, AZ 85017, United States.

Military Medicine

|July 2, 2026

Summary

Human Performance Optimization (HPO) programs enhance Special Operations Forces (SOF) readiness, improving physical performance and reducing injuries. Further research is needed to optimize these integrated multidisciplinary programs for maximum impact.

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Area of Science:

Military medicine and performance science.
Human performance optimization.
Special Operations Forces (SOF) readiness.

Background:

Special Operations Forces (SOF) require high physical readiness for demanding operations.
Human Performance Optimization (HPO) programs aim to enhance this readiness through multidisciplinary approaches.
Existing evidence on SOF HPO programs is limited and largely observational.

Purpose of the Study:

To synthesize the available literature on the structure, integration, and outcomes of SOF HPO programs.
To identify associations between HPO programs and physical performance, injury rates, and training completion.
To highlight methodological limitations and suggest future research priorities for evaluating SOF HPO programs.

Main Methods:

A systematized narrative review was conducted following SANRA and SWiM guidelines.
Searched five electronic databases and gray literature repositories from January 2010 to December 2025.
Included studies on active-duty SOF personnel in HPO programs addressing multiple performance domains, with reported outcomes on readiness, performance, injury, or attrition.

Main Results:

Observational data suggest embedded HPO programs are linked to superior physical fitness, lower injury rates, and higher training completion in SOF compared to conventional training.
Findings are predominantly from nonrandomized designs and require cautious interpretation due to potential confounding.
International SOF programs show similar positive trends.

Conclusions:

Embedded, multidisciplinary HPO programs show promise in improving SOF performance, reducing injuries, and increasing training completion.
Organizational limitations like parallel work structures and lack of standardized metrics hinder program effectiveness and enterprise-level comparison.
Future efforts should focus on fully interdisciplinary teams, standardized metrics, longitudinal studies, and cost-effectiveness analyses to maximize HPO impact.