Search Results - "Biewener, Andrew A."

Muscle function in avian flight: achieving power and control by Biewener, Andrew A.

“…Flapping flight places strenuous requirements on the physiological performance of an animal. Bird flight muscles, particularly at smaller body sizes, generally…”
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Outrun or Outmaneuver: Predator–Prey Interactions as a Model System for Integrating Biomechanical Studies in a Broader Ecological and Evolutionary Context by Moore, Talia Y., Biewener, Andrew A.

“…Behavioral studies performed in natural habitats provide a context for the development of hypotheses and the design of experiments relevant both to…”
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Unpredictability of escape trajectory explains predator evasion ability and microhabitat preference of desert rodents by Moore, Talia Y., Cooper, Kimberly L., Biewener, Andrew A., Vasudevan, Ramanarayan

“…Mechanistically linking movement behaviors and ecology is key to understanding the adaptive evolution of locomotion. Predator evasion, a behavior that enhances…”
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Biomechanical consequences of scaling by Biewener, Andrew A

“…To function over a lifetime of use, materials and structures must be designed to have sufficient factors of safety to avoid failure. Vertebrates are generally…”
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Comparison of human gastrocnemius forces predicted by Hill-type muscle models and estimated from ultrasound images by Dick, Taylor J M, Biewener, Andrew A, Wakeling, James M

“…Hill-type models are ubiquitous in the field of biomechanics, providing estimates of a muscle's force as a function of its activation state and its assumed…”
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Running over Rough Terrain Reveals Limb Control for Intrinsic Stability by Daley, Monica A., Biewener, Andrew A.

“…Legged animals routinely negotiate rough, unpredictable terrain with agility and stability that outmatches any human-built machine. Yet, we know surprisingly…”
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Pigeons trade efficiency for stability in response to level of challenge during confined flight by Williams, C. David, Biewener, Andrew A.

“…Significance The real world is a cluttered environment and animals traversing it are faced with innumerable obstacles in their normal locomotion. During normal…”
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Modulation of Flight Muscle Recruitment and Wing Rotation Enables Hummingbirds to Mitigate Aerial Roll Perturbations by Ravi, Sridhar, Noda, Ryusuke, Gagliardi, Susie, Kolomenskiy, Dmitry, Combes, Stacey, Liu, Hao, Biewener, Andrew A., Konow, Nicolai

“…Both biological and artificial fliers must contend with aerial perturbations that are ubiquitous in the outdoor environment. Flapping fliers are generally…”
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High-speed surface reconstruction of a flying bird using structured light by Deetjen, Marc E, Biewener, Andrew A, Lentink, David

“…Birds fly effectively and maneuver nimbly by dynamically changing the shape of their wings during each wingbeat. These shape changes have yet to be quantified…”
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Skeletal Muscle Shape Change in Relation to Varying Force Requirements Across Locomotor Conditions by Konow, Nicolai, Collias, Alexandra, Biewener, Andrew A

“…Contractions of skeletal muscles to generate movement involve dynamic changes in contractile and elastic tissue strains that likely interact to influence the…”
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Experimental determination of three-dimensional cervical joint mobility in the avian neck by Kambic, Robert E, Biewener, Andrew A, Pierce, Stephanie E

“…Birds have highly mobile necks, but neither the details of how they realize complex poses nor the evolution of this complex musculoskeletal system is…”
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Broad similarities in shoulder muscle architecture and organization across two amniotes: implications for reconstructing non-mammalian synapsids by Fahn-Lai, Philip, Biewener, Andrew A, Pierce, Stephanie E

“…The evolution of upright limb posture in mammals may have enabled modifications of the forelimb for diverse locomotor ecologies. A rich fossil record of…”
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Western and Clark's grebes use novel strategies for running on water by Clifton, Glenna T, Hedrick, Tyson L, Biewener, Andrew A

“…Few vertebrates run on water. The largest animals to accomplish this feat are western and Clark's grebes (Aechmophorus occidentalis and Aechmophorus clarkii)…”
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Pigeons ( C. livia ) Follow Their Head during Turning Flight: Head Stabilization Underlies the Visual Control of Flight by Ros, Ivo G, Biewener, Andrew A

“…Similar flight control principles operate across insect and vertebrate fliers. These principles indicate that robust solutions have evolved to meet complex…”
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Lower-limb muscle function is influenced by changing mechanical demands in cycling by Lai, Adrian K M, Dick, Taylor J M, Brown, Nicholas A T, Biewener, Andrew A, Wakeling, James M

“…Although cycling is a seemingly simple, reciprocal task, muscles must adapt their function to satisfy changes in mechanical demands induced by higher crank…”
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The role of intrinsic muscle mechanics in the neuromuscular control of stable running in the guinea fowl by Daley, Monica A., Voloshina, Alexandra, Biewener, Andrew A.

“…Here we investigate the interplay between intrinsic mechanical and neural factors in muscle contractile performance during running, which has been less studied…”
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Three-dimensional kinematics of hummingbird flight by Tobalske, Bret W, Warrick, Douglas R, Clark, Christopher J, Powers, Donald R, Hedrick, Tyson L, Hyder, Gabriel A, Biewener, Andrew A

“…Hummingbirds are specialized for hovering flight, and substantial research has explored this behavior. Forward flight is also important to hummingbirds, but…”
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Hummingbird flight stability and control in freestream turbulent winds by Ravi, Sridhar, Crall, James D, McNeilly, Lucas, Gagliardi, Susan F, Biewener, Andrew A, Combes, Stacey A

“…Airflow conditions close to the Earth's surface are often complex, posing challenges to flight stability and control for volant taxa. Relatively little is…”
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Pigeons steer like helicopters and generate down- and upstroke lift during low speed turns by Ros, Ivo G, Bassman, Lori C, Badger, Marc A, Pierson, Alyssa N, Biewener, Andrew A

“…Turning is crucial for animals, particularly during predator–prey interactions and to avoid obstacles. For flying animals, turning consists of changes in (i)…”
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Vertical leaping mechanics of the Lesser Egyptian Jerboa reveal specialization for maneuverability rather than elastic energy storage by Moore, Talia Y, Rivera, Alberto M, Biewener, Andrew A

“…Numerous historical descriptions of the Lesser Egyptian jerboa, , a small bipedal mammal with elongate hindlimbs, make special note of their extraordinary…”
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