The research community can access our specialist journals worldwide through library subscriptions. Our new open access agreements provide researchers with improved opportunities to read and publish articles. Integrating biomechanics and energetics is challenging in various forms of locomotion, particularly in free-ranging movement in natural environments. Typically, biomechanists focus on mechanics, physiologists on energy (usually in a laboratory setting), and ecologists on field measurements, often using proxies like accelerometry due to the difficulty of direct field measurements. A greater integration of these disciplines would enhance the biological and scientific relevance of both field and laboratory measurements, and a shared conceptual framework would facilitate better data and information exchange at the intersection of these fields.