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TEMPERATURE, MUSCLE POWER OUTPUT AND LIMITATIONS ON BURST LOCOMOTOR PERFORMANCE OF THE LIZARD DIPSOSAURUS DORSALIS
Summary 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-loopExpand
POWER OUTPUT OF FISH MUSCLE FIBRES PERFORMING OSCILLATORY WORK: EFFECTS OF ACUTE AND SEASONAL TEMPERATURE CHANGE
TLDR
The number and timing of stimuli were adjusted, at constant strain amplitude, to optimize net positive work output over a range of cycle frequencies and modified the relationship between peak length and peak force at 4°C and 15°C. Expand
Modeling red muscle power output during steady and unsteady swimming in largemouth bass.
TLDR
Comparison with published values of power requirements from oxygen consumption measurements indicates a limit to steady swimming speed imposed by the maximum power available from red muscle. Expand
RECRUITMENT PATTERNS AND CONTRACTILE PROPERTIES OF FAST MUSCLE- FIBERS ISOLATED FROM ROSTRAL AND CAUDAL MYOTOMES OF THE SHORT- HORNED SCULPIN
TLDR
Under optimal conditions of strain and stimulation, muscle fibres from rostral and caudal myotomes produced similar levels of work and generated their maximum power output at the tail-beat frequencies used in swimming. Expand
BODY SIZE, MUSCLE POWER OUTPUT AND LIMITATIONS ON BURST LOCOMOTOR PERFORMANCE IN THE LIZARD DIPSOSAURUS DORSALIS
TLDR
Findings suggest that limb cycling frequency may be limited by twitch contraction kinetics, however, despite corresponding proportionality to body size, limb cycling frequencies during burst running are about 20 % lower than the cycling frequencies required to maximise power output. Expand
Thermal Dependence and Acclimation of Fast Start Locomotion and Its Physiological Basis in Rainbow Trout (Oncorhynchus mykiss)
TLDR
Rainbow trout are capable of only minor acclimatory adjustments in response to exposure to high temperature, and it appears that this acclimatories response has not been facilitated by the differential expression of temperature-specific myofibrillar protein isoforms, as has been previously found in other polyploid fish species. Expand
Temperature adaptation and the contractile properties of live muscle fibres from teleost fish
TLDR
It is concluded that although muscle contraction in Antarctic fish shows adaptations for low temperature function, the degree of compensation achieved in shortening speed and twitch kinetics is relatively modest. Expand
Low Temperature Limits Burst Swimming Performance in Antarctic Fish
The temperature of the Southern Ocean varies from −1.86 °C at high latitudes to around 5 °C towards the Antarctic Convergence. Seasonal variations in temperature are less than 0.2 °C close to theExpand
Inter- and intra-specific variation in myosin light chain and troponin I composition in fast muscle fibres from two species of fish (genusOreochromis) which have different temperature-dependent
TLDR
The twoOreochromis species studied produce fertile F1 hybrids, are susceptible to ploidy manipulation, have a short generation time and rapid growth rates, and represent a good model for investigating the genetic mechanisms underlying the inheritance of different force-generating capacities in fish. Expand
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