Differences in kinematics and energy cost between front crawl and backstroke below the anaerobic threshold.
Tomohiro GonjoCarla McCabeAna SousaJoão RibeiroRicardo J FernandesJoão Paulo Vilas-BoasRoss SandersPublished in: European journal of applied physiology (2018)
Front crawl is less costly than backstroke, and limbs motion in front crawl is more effective than in backstroke.