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It Pays to Have a Spring in Your Step

Sawicki, Gregory S.1; Lewis, Cara L.2; Ferris, Daniel P.2

Exercise and Sport Sciences Reviews: July 2009 - Volume 37 - Issue 3 - p 130-138
doi: 10.1097/JES.0b013e31819c2df6

Humans perform ankle muscle-tendon positive mechanical work during walking with efficiency two to six times greater than isolated muscle.

1Department of Ecology and Evolutionary Biology, Brown University, Providence, RI; and 2School of Kinesiology, University of Michigan, Ann Arbor, MI

Address for correspondence: Daniel P. Ferris, Ph.D., School of Kinesiology, 1402 Washington Heights, University of Michigan, Ann Arbor, MI 48109-2013 (E-mail:

Accepted for publication: December 8, 2008.

Associate Editor: E. Paul Zehr, Ph.D.

©2009 The American College of Sports Medicine