The impact of speed on running economy

The Ultimate Guide to Running Economy: How to Improve and Measure It — INSCYD

Eliud Kipchoge's Physiology: Uncovering the Secrets Behind the INEOS 1:59 Marathon — INSCYD

Frontiers Running Economy from a Muscle Energetics Perspective

Running Economy: What Is It and How to Enhance It

Frontiers Humans Optimize Ground Contact Time and Leg Stiffness to Minimize the Metabolic Cost of Running

Super Running blog

Progressive daily hopping exercise improves running economy in amateur runners: a randomized and controlled trial

Report: The Impact of Running Cadence on Running Economy (ECOR and RE)

Are long legs good for running? - 220 Triathlon