... generalized terrestrial lizard, Dipsosaurus dorsalis . Inclines had significant main effects for relatively few kinematic variables of C. calyptratus (11%)compared to D. dorsalis (73%). For C. calyptratus , the main effects of locomotor surface were nearly three times more widespread than those of incline...

... and that, evolutionarily, this transport system may be relatively conserved even in animals with very different patterns of lactate metabolism. © The Company of Biologists Limited 2001 2001 monocarboxylate transporter lizard Dipsosaurus dorsalis muscle fibre type lactic acid. CIN (5 mmol l –1 ) has...

... and the three-dimensional kinematics of the hindlimb of four sizes (4–66 g) of the lizard Dipsosaurus dorsalis moving steadily at both the walk–run transition (50 % duty factor) and at a moderately fast speed of 250 cm s −1 . We used analyses of variance to test whether limb movements changed with size...

... by exhausted lizards. Dipsosaurus dorsalis were placed in a thermal gradient and their body temperatures were recorded from 08:00 to 14:00 h. At 14:00 h, animals were subjected to different experimental regimens. In the exercise (E) regimen, animals at 40 °C were forced to exercise maximally for 5 min...

... were affected by both incline (downhill 30°, level and uphill 30°) and different speeds of steady locomotion (50–250 cm s −1 ) in the morphologically generalized iguanian lizard Dipsosaurus dorsalis . On the uphill surface, the strides of lizards were shorter and quicker than those at a similar speed...

... therefore examined a wide range of steady running speeds to quantify variation in the kinematics of a morphologically generalized hindlimb in the lizard Dipsosaurus dorsalis . From speeds of 50 to 350cm s −1 , stride length, step length and stride frequency all had significant curvilinear increases from...

...Steven J. Swoap; Timothy P. Johnson; Robert K. Josephson; Albert F. Bennett ABSTRACT The mechanical power output of fast-twitch fibres from the iliofibularis of the lizard Dipsosaurus dorsalis was measured over a broad body temperature range using the oscillatory work-loop technique. The optimal...

...Timothy P. Johnson; Steven J. Swoap; Albert F. Bennett; Robert K. Josephson ABSTRACT The power output of fast-glycolytic (FG) muscle fibres isolated from the iliofibularis (IF) muscle of desert iguanas ( Dipsosaurus dorsalis ) was measured at 35°C using the oscillatory work-loop technique...

...Ian A. Johnston; Todd T. Gleeson Single fibres were isolated from the ‘red’ and ‘white’ portions of the iliofibularis muscle from the desert iguana ( Dipsosaurus dorsalis ). Muscle fibres were chemically skinned with the non-ionic detergent Brij. 58. Maximal Ca 2+ -activated tensions at 40°C were...