This research library exists to bridge the gap between sports science and real-world hybrid training. Every article is written to be rigorous, practical, and honest about what the evidence does—and does not—support.
Depth without noise
High-signal research explained clearly, without unnecessary academic clutter.
Coach-first application
Findings are translated directly into programming decisions and athlete context.
Transparent standards
Supported evidence, uncertainty, and limitations are explicitly separated.
Educational use only. This content does not replace medical advice, diagnosis, or treatment.
Tirzepatide and Retatrutide: A Comprehensive Review
Tirzepatide and retatrutide are next-generation peptide therapies showing exceptional promise for weight loss and metabolic health. This article reviews recent research on their mechanisms, clinical outcomes, safety, and regulatory status, comparing their effectiveness to established GLP-1 agonists like semaglutide in obesity and type 2 diabetes management.
Fueling Female Athletes for HYROX & CrossFit Events
HYROX and CrossFit are hybrid endurance–strength events with race durations ranging from ~1 to 2 hours depending on athlete level. Performance requires nutrition strategies tailored to intensity and duration, with particular attention to fueling and hydration needs in female athletes.
HYROX Stations: Anatomy, Neuromuscular Demands, and Exercise Physiology
This article breaks down the anatomical, neuromuscular, and energy system demands of every HYROX station. It shows HYROX to be a predominantly aerobic race with repeated anaerobic surges, identifies key muscular bottlenecks, and introduces an SMS-based framework to guide targeted, station-specific training for performance optimization.
Knee Injuries in Hybrid Athletes: Clinical and Coaching Perspectives
A comprehensive clinical and coaching guide to knee injuries in hybrid sports like HYROX. It explains knee anatomy, common injury patterns, biomechanics, rehab timelines, return-to-sport criteria, and prevention strategies, integrating sports medicine evidence with practical coaching insights to protect performance and long-term joint health.
Biomechanical and Physiological Analysis of the Burpee Broad Jump in HYROX Competition
A detailed performance analysis of the burpee broad jump in HYROX, examining biomechanics, muscle recruitment, energy system demands, fatigue patterns, and injury risks. It highlights key technical faults, sex-specific responses, and evidence-based training strategies to improve power, efficiency, and durability under race conditions.
The Lumbar and Thoracic Spine: Anatomy, Neurology, Biomechanics, and Training for Athletes
A science-based overview of lumbar and thoracic spine anatomy, biomechanics, and injury mechanisms in athletes. It explains spinal loading under sport demands, common injury patterns, and evidence-based training strategies—core stabilization, anti-rotation, and movement screening—to build spinal resilience, reduce injury risk, and support high-performance movement.
Elite Female HYROX and Hybrid Athlete Coaching: A Scientific Guide
An evidence-based guide to coaching elite female HYROX athletes, integrating concurrent strength–endurance training with female-specific physiology. It covers training structure, nutrition, hormonal considerations, psychology, and monitoring strategies to optimize performance while reducing injury and RED-S risk at the elite level.
Friction, Load, and Technique in the Sled Push and Pull: An Applied Narrative Review with Reference to Hybrid Competition
An applied, science-based review examining how friction, surface conditions, and biomechanics influence sled push and pull performance in hybrid competitions. It translates physics and coaching research into practical strategies for load selection, technique optimization, and fatigue management, helping athletes and coaches improve efficiency and race-day outcomes.
Coaching the Sled Push and Pull: Managing Friction, Technique, and Fatigue in Functional Fitness
A practical, science-informed guide to sled performance in hybrid competitions. It explains how friction and surface choice affect sled difficulty, breaks down effective push and pull techniques, and provides coaching cues and progressions to improve efficiency, manage fatigue, and perform sled stations confidently under race conditions.
Scientific Foundations of Hybrid Sports Training: Application to HYROX
A science-driven overview of training for hybrid competitions like HYROX. It explains energy system interactions, the concurrent training interference effect, and strategies to balance strength and endurance. The article also covers performance testing and a five-level athlete development model to guide evidence-based progression from novice to elite.
Stability, Mobility, and Strength: A Progressive Training Framework for HYROX Athletes
An evidence-based framework outlining why stability and mobility must precede maximal strength training. Drawing on biomechanics, neuromuscular control, and injury-prevention research, it shows how movement quality under fatigue drives performance in HYROX, enabling athletes to express strength efficiently, reduce injury risk, and gain decisive marginal improvements in competition.
Lactate vs Lactic Acid
A comprehensive, evidence-based guide to lactate threshold physiology and training. It explains lactate's true role in performance, compares lab and field testing methods, and explores emerging wearable technologies. Practical tools—tempo tests, heart rate, RPE, and talk test—are emphasized to help athletes and coaches train smarter and sustain higher intensities.
Hybrid Training for HYROX: From Research to Coaching Practice
An evidence-based guide translating HYROX research into practical coaching strategies. It highlights the primacy of aerobic capacity, smart pacing, race-specific strength, and technique under fatigue, while outlining energy-system demands, concurrent training strategies, athlete development levels, field testing, and sample programs for all stages of hybrid athletes.
Coaching Elite Female HYROX and Hybrid Athletes: An Evidence-Based Guide
An evidence-based guide for coaching elite female HYROX and hybrid athletes, integrating strength, endurance, nutrition, and menstrual-cycle considerations. It debunks common myths, addresses female-specific physiology and RED-S risk, and provides practical, science-backed strategies to optimize performance, recovery, and long-term athlete health.
