BLANK, J.M.; MORRISSETTE, J.M.; LANDEIRA-FERNANDEZ, A.M.; BLOCK, B.A.; Hopkins Marine Station, Stanford University; Hopkins Marine Station, Stanford University; Hopkins Marine Station, Stanford University; Hopkins Marine Station, Stanford University: Cardiac Performance of Pacific Bluefin Tuna in Response to Temperature Tunas are endothermic teleosts with high metabolic rates and exceptional cardiac performance. Previous physiological studies of tuna […]

ROBERTS, T.J.; HIGGINSON, B.K.; NELSON, F.E.; GABALDON, A.M.; Oregon State University; Oregon State University; Oregon State University; Oregon State University: Versatile function of muscle stretch-shorten cycles during running. The muscles that power running must be remarkably flexible in their mechanical function. For example, the muscular system performs almost zero net mechanical work during level running, […]

HERMANSON, J.W.*; MITCHELL, R.M.; BETOF, A.S.; RISKIN, D.K.; Cornell Univ., Ithaca, NY: Muscle design and function in relation to locomotion: star-nosed moles and other “primitive” mammals. Primitive placental mammals include shrews and moles, comprising the Insectivora of some authors. Shrews, considered to be relatively basal among living mammals, have been shown to contain locomotor muscles […]

DUDEK, D.M.; FULL, R.J.; Univ. of California, Berkeley: Mechanical Properties of the Support Tripod in Running Insects Terrestrial runners produce ground reaction forces that can be modeled as a spring-mass system. Two beneficial consequences of bouncing while running include: 1) the ability to use springs to store and return elastic strain energy and 2) passive […]

CARLSON, K.J.; Stony Brook University: Links between limb bone cross-sectional geometry and locomotor behaviors of African apes African apes, whose locomotor repertoire is well-known from field observations, provide a unique opportunity for quantitatively assessing the relationship between limb morphology and locomotion. The narrow phylogenetic relationship of African apes, coupled with their diverse locomotor behaviors, magnifies […]

AHN, A.N.; BIEWENER, A.A.; Harvard University; Harvard University: IN VIVO LENGTH CHANGES IN RELATION TO IN VITRO FORCE-LENGTH PROPERTIES IN THE TOAD SEMIMEMBRANOSUS MUSCLE. There is evidence that adjacent muscle segments can contract heterogeneously under in vivo conditions implying that the two segments (& their sarcomeres) may operate on different regions of their force-length relationships […]

HIGHAM, T.E.*; JAYNE, B.C.; Univ. of California, Davis; Univ. of Cincinnati: Effects of incline on the in vivo muscle activity in the hindlimb of the arboreal lizard, Chamaeleo calyptratus Arboreal animals, especially lizards, often move on surfaces with variable inclines, but the effects of incline on hindlimb muscle activity are poorly understood. Thus, we studied […]

COUGHLIN, DJ; CAPUTO, ND; BOHNERT, KL; WEAVER, FE; Widener University; Widener University; Widener University; Widener University: Troponin-T and Longitudinal Variation in the Contractile Properties of Trout Muscle The red or aerobic muscle from the anterior of rainbow trout (Oncorhynchus mykiss) activates (generates force) more quickly than that from the posterior. An analysis of the expression […]

KING, A.J.*; ADAMO, S.A.; Dalhousie University, Halifax, Canada: Pulling for the greater good – elements of cuttlefish ventilatory and circulatory systems work together to circulate blood or to aid crypsis. Cephalopod blood is ~ 30% more viscous than human blood, and their hearts make up only 0.1 to 0.3% of their body weight (vs. 0.6% […]

BAUCHINGER, U; BIEBACH , H; University of Munich (LMU), Germany; Max-Planck-Institute for Ornithology: Phenotypic flexibility of organs and its releationship to body mass changes during migration Long-distance migration across ecological barriers necessitates substantial internal resources. Deposition of those resources can result in a doubling of body mass. Fat is the dominating fuel for flight, but […]