Shows that maximal glycolytic flux (vLamax) shifts metabolic thresholds independently of VO₂max, challenging threshold models that focus solely on aerobic capacity and supporting a two-system framework for endurance performance.
Demonstrates that reported sex differences in exercise intensity determination could reflect protocol choices (ramp rate, mode, criteria) rather than true biological differences, urging methodological standardisation in threshold research.
Proposes and distinguishes four related but separable performance concepts — durability, fatigability, repeatability, and resilience — providing a conceptual framework and practical implications for endurance training and racing.