... Hz. The mechanical performance of these muscles has been quantified with isometric performance and the workloop technique, but owing to methodological limitations we lack a key muscle property characterising muscle performance, the force–velocity relationship. Here, we quantified the force–velocity...

... of high temperatures than Arctic char, and why char are particularly vulnerable to climate change. Thermal tolerance Heart Myocardium Red muscle Acute Temperature acclimation Muscle performance Muscle efficiency Natural Sciences and Engineering Research Council of Canada http...

... backward arm cranking as an unselected control, our results indicate the presence of pronounced male-biased sexual dimorphism in muscle performance for protracting the arm to propel the fist forward. We also compared overhead pulling force between males and females, to test the alternative hypothesis...

... mechanistic understanding of how this metabolic disease phenotype affects fitness of male L. pulchella in vivo , we examined infection effects on in situ muscle performance and molecular traits relevant to dragonfly flight performance in nature. Importantly, these traits were previously shown to be affected...

... and functional adjustments to load-bearing skeletal muscles. Musculoskeletal Body mass Centrifugation Troponin T Body weight Alternative splicing Weight sensing Muscle performance A key requirement for animal locomotion is a musculoskeletal system that supports the weight of the body...

... was performing work was significantly higher at 15°C than at 25°C, regardless of acclimation conditions. Muscle therefore consumed significantly more oxygen at 15°C for a given work output than at 25°C, and plastic responses did not modify this thermodynamic effect. The metabolic cost of muscle performance...

... an animal perceives and responds to body weight. * Author for correspondence ( [email protected] ) 19 1 2011 © 2011. 2011 Tnnt3 body weight weight sensing alternative splicing troponin T energetics metabolic rate obesity body composition skeletal muscle gastrocnemius muscle...

... of body weight, with moths from poorer larval feeding regimes producing isoform profiles associated with reduced muscle performance and energy consumption rate. Thus, Tnt isoform composition in striated muscle is responsive to both weight-sensing and nutrition-sensing mechanisms, with consequent effects...

..., thereby largely ignoring other important aspects of muscle cellular biology. Results presented here are a novel examination of how both myofibrillar protein isoform composition and protein degradation interact to affect variability in muscle performance. Fig. 6. Results of multiple linear...

.... * Author for correspondence (e-mail: [email protected] ) 27 1 2005 © The Company of Biologists Limited 2005 2005 eel Anguilla anguilla trout swimming efficiency metabolic costs muscle performance swimtunnel cost of transport At the beginning of the previous century...

... muscle fibres) yet are able to power swimming for several seconds. * Author for correspondence (e-mail: [email protected] ) 3 12 2003 © The Company of Biologists Limited 2004 2004 kinematics Danio rerio zebrafish body wave swimming larva muscle performance Most...

... of the ankle extensor muscles changed in the right direction to facilitate optimal shortening of the muscles, the study did not monitor the actual shortening of the muscles, so the question remains as to whether the change in gear ratio was beneficial to muscle performance. Additionally, the ankle extensor...

... 9 1998 © The Company of Biologists Limited 1998 Rana catesbeiana bullfrog muscle performance electromyography sonomicrometry jumping Locomotor performance in animals is dependent in part upon the functional characteristics of the skeletal muscles, and the mechanical...