World long-distance running elite: ethnicity-specific run energy efficiency analysis - Kryazhev, V. D.; Karpov, V. Y.; Skorosov, K. K.; Sharagin, V. I. (Theory and Practice of Physical Culture, 2021)
Keywords: long distance running; modelling; mathematic-logical model; efficiency; energy metobolism; performance capacity; aerobic; Africa; Europe; running economy; Russia; endurance sports