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Andrew A. Biewener
Researcher at Harvard University
Publications - 215
Citations - 16076
Andrew A. Biewener is an academic researcher from Harvard University. The author has contributed to research in topics: Isometric exercise & Motor unit recruitment. The author has an hindex of 71, co-authored 210 publications receiving 14592 citations. Previous affiliations of Andrew A. Biewener include Field Museum of Natural History & University of Bristol.
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Journal ArticleDOI
In vivo muscle function vs speed. II. Muscle function trotting up an incline.
TL;DR: This study examined the lateral head of the triceps and the vastus lateralis while trotting up a 10% incline over a range of speeds and observed significant increases in the EMG intensity (IEMG) of both muscles.
Journal ArticleDOI
Accuracy of gastrocnemius muscles forces in walking and running goats predicted by one-element and two-element Hill-type models
TL;DR: Comparisons provide important insight into the accuracy of Hill-type models and show that incorporation of fast and slow contractile elements within muscle models can improve estimates of time-varying, whole muscle force during locomotor tasks.
Journal ArticleDOI
Pectoralis muscle performance during ascending and slow level flight in mallards (Anas platyrhynchos).
TL;DR: In the present study, the mallard pectoralis showed a distinct pattern of active lengthening during the upstroke that probably enhances the rate of force generation and the magnitude of the force generated and, thus, the amount of work and power produced during the downstroke.
Journal ArticleDOI
Effects of flight speed upon muscle activity in hummingbirds.
TL;DR: Data indicate the high wingbeat frequency of hummingbirds limits the time available for flight muscle relaxation before the next half stroke of a wingbeat, which is probably a physiological response to an adverse scaling of mass-specific power available forFlight.
Book ChapterDOI
Tendons and Ligaments: Structure, Mechanical Behavior and Biological Function
TL;DR: The majority of tendons that have been studied to date appear to operate at lower stresses and strains, have larger safety factors, and are stiffer, compared with “high-stress” tendons of animals specialized for elastic energy savings.