...–time integral) whenever there is active force. The energetic costs of these functions are important components in the energy budget during locomotion. We investigated how the pattern of stimulation and movement affects the mechanics and energetics of muscle fibre bundles isolated from wild rabbits...

...Paul L. Else ABSTRACT The thermal dependence (0–40°C) of Na + flux in isolated liver cells of three endotherms (mice, rat and rabbit) was compared with that of ectotherms in the form of a thermally tolerant amphibian (cane toad), a cold-water fish (rainbow trout) and a thermophilic reptile (lizard...

... were measured at 25°C using peroneus longus (PL) and extensor digiti-V (ED-V) muscles from wild rabbits ( Oryctolagus cuniculus ). More than 90% of the fibres in these muscles are fast-twitch, type 2 fibres. Maximum power was measured in force-clamp experiments. We show that maximum power per volume...

... were ‘skinned’ to remove all membranes, leaving the contractile filament array intact and functional. Segments of skinned fibres from these cheetah muscles and from rabbit psoas muscle were activated at 20°C by a temperature-jump protocol. Step and ramp length changes were imposed after active stress...

...Charlotte Sinding; Thierry Thomas-Danguin; Guillemette Crepeaux; Benoist Schaal; Gérard Coureaud SUMMARY Elemental and configural olfactory perception allows interaction with the environment from very early in life. To evaluate how newborn rabbits can extract and respond to information from...

... in newborn rabbits. In particular, pups did not respond to AB after they had learned A or B. However, two alternative hypotheses might be suggested to explain this result: the presence in the mixture of a novel odorant that inhibits the response to the learned stimulus, and the unevenness of the sensory...

... rabbits were raised on diets of different mechanical properties so as to develop an experimental model of joint function in a normal range of physiological loads. These integrative experiments are used to unravel the dynamic inter-relationships among mechanical loading, tissue adaptive plasticity, norms...

.... Pharmacol. 65 , 193 -208. Amano, K., Sato, K., Hori, M., Ozaki, H. and Karaki, H. ( 1997 ). Palytoxin-induced increase in endothelial Ca 2+ concentration in the rabbit aortic valve. Naunyn Schmiedebergs Arch. Pharmacol. 355 , 751 -758. Baden, D. G. ( 1989 ). Brevetoxins: unique polyether...

... are presumably associated with changes in daily muscle function. Our aim was to examine the daily burst number, burst length distribution and duty time (fraction of the day during which a muscle was active) of the jaw muscles of juvenile male rabbits( Oryctolagus cuniculus ). A radio-telemetric device...

... and nitrogen excretion measurements were used to assess changes in metabolic rate( V̇ O 2 ), fuel selection and composition of nitrogen wastes, as well as seasonal differences. For reference, matching experiments were also performed on rabbits. The results show that woodchucks have a higher metabolic rate...

... synchronously. Glycerinated rabbit psoas muscle fibres, containing ATP molecules almost equal in number to the cross-bridges within the fibre, were activated to shorten under various afterloads by laser-flash photolysis of caged Ca 2+ . In these conditions, almost all the cross-bridges are in the state where...

.... These studies demonstrate that MYH13 is preferentially expressed in the majority of orbital and global fibers in the central innervation zone of rabbit EOM. Many individual fibers express MYH13 with the fast IIb myosin and varying amounts of IIx myosin. The differential localization of MYH13, coupled...

... oscillations in the domestic rabbit are recorded using synchronized videographic, cineradiographic and pneumotachographic techniques. The analysis focuses on the variation in locomotor–respiratory coupling (LRC) and on the relative position of the liver. Results from running rabbits show (1) variation in phase...

...Clive S. Berger; Simon C. Malpas ABSTRACT A linear autoregressive/moving-average model was developed to describe the dynamic relationship between mean arterial pressure (MAP), renal sympathetic nerve activity (SNA) and renal blood flow (RBF) in conscious rabbits. The RBF and SNA to the same kidney...

... that the isolated perfused marmot heart would be damaged less and recover better from a bout of induced hypoxia or ischaemia than would the heart of a comparison animal, the New Zealand laboratory rabbit ( Oryctolagus cuniculus ). Isolated marmot and rabbit hearts were made hypoxic by a 30 min perfusion...