Browsing by Author "Konow, Nicolai"
Now showing items 1-7 of 7
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Added Mass in Rat Plantaris Muscle Causes a Reduction in Mechanical Work
Ross, Stephanie A.; Rimkus, Barbora; Konow, Nicolai; Biewener, Andrew; Wakeling, James M. (The Company of Biologists, 2020-07-31)Most of what we know about whole muscle behaviour comes from experiments on single fibres or small muscles that are scaled up in size without considering the effects of the additional muscle mass. Previous modelling studies ... -
Different Segments within Vertebrate Muscles Can Operate on Different Regions of Their Force–Length Relationships
Ahn, A N; Konow, Nicolai; Tijs, Chris; Biewener, Andrew (Oxford University Press (OUP), 2018-06-13)To relate in vivo behavior of fascicle segments within a muscle to their in vitro force-length relationships, we examined the strain behavior of paired segments within each of three vertebrate muscles. After determining ... -
In vivo force-length and activation dynamics of two distal rat hindlimb muscles in relation to gait and grade
Biewener, Andrew; Konow, Nicolai; Tijs, Chris; Eng, Carolyn; Holt, Natalie C.; Biewener, Andrew (The Company of Biologists, 2019-11-21)Muscle function changes to meet the varying mechanical demands of locomotion across different gait and grade conditions. A muscle's work output is determined by time-varying patterns of neuromuscular activation, muscle ... -
Modeling muscle function using experimentally determined subject-specific muscle properties
Wakeling, James M.; Tijs, Chris; Konow, Nicolai; Biewener, Andrew (Elsevier BV, 2021-03)Muscle models are commonly based on intrinsic properties pooled across a number of individuals, often from a different species, and rarely validated against directly measured muscle forces. Here we use a rich data set of ... -
Modulation of Flight Muscle Recruitment and Wing Rotation Enables Hummingbirds to Mitigate Aerial Roll Perturbations
Ravi, Sridhar; Noda, Ryusuke; Gagliardi, Susan; Kolomenskiy, Dmitry; Combes, Stacey; Liu, Hao; Biewener, Andrew; Konow, Nicolai (Elsevier BV, 2020-01)Both biological and artificial fliers must contend with aerial perturbations that are ubiquitous in the outdoor environment. Flapping fliers are generally least stable, but also the most maneuverable in roll, yet roll ... -
Post-activation muscle potentiation and its relevance to cyclical behaviours
Biewener, Andrew; Taylor-Burt, Kari; Konow, Nicolai (The Royal Society, 2020-06)Muscle can experience post-activation potentiation (PAP), a temporary increase in force and rate of force development, when contractions are closely timed; therefore, cyclical behaviors are likely affected by PAP, as ... -
Skeletal Muscle Shape Change in Relation to Varying Force Requirements Across Locomotor Conditions
Biewener, Andrew; Konow, Nicolai; Collias, Alexandra (Frontiers Media SA, 2020-03-20)Contractions of skeletal muscles to generate in vivo movement involve dynamic changes in contractile and elastic tissue strains that likely interact to influence the force and work of a muscle. However, studies of the in ...