... high myoglobin concentrations and large fibers, as predicted, but novel fiber profiles for diving mammals. Beaked whales possessed a sprinter's fiber-type profile, composed of ~80% fast-twitch (Type II) fibers with low V mt . Approximately one-third of the muscle fibers of short-finned pilot whales...

..., and that titin size variability may potentially act to ‘tune’ the protein's mechanotransduction capability. * Author for correspondence ( rlieber@ucsd.edu ) 5 1 2012 3 4 2012 © 2012. 2012 titin collagen myosin heavy chain fiber type muscle design Skeletal muscle...

... physiology with ecology and/or performance. * Author for correspondence ( thigham@clemson.edu ) 30 1 2011 © 2011. 2011 muscle performance locomotion lizard Sceloporus fiber type cross-sectional area running acceleration Movement is an essential part of survival...

... between the rates of skeletal muscle blood flow and oxygen consumption( V̇ O 2 ). In active muscle, during aerobically supported exercise, there is a linear relationship between these variables, irrespective of the muscle fiber type and intensity of exercise through most of the aerobic exercise range. We...

...Kevin E. Bonine; Todd T. Gleeson; Theodore Garland, Jr SUMMARY Previously, we found that phrynosomatid lizards, a diverse group common in the southwestern USA, vary markedly in fiber-type composition of the iliofibularis (a hindlimb muscle important in locomotion). Phrynosomatidae comprises three...

...Rebecca R. Watson; Todd A. Miller; Randall W. Davis SUMMARY There is strong evidence that pinnipeds maintain a lipid-based, aerobic metabolism during diving. However, the few fiber-typing studies performed on pinniped skeletal muscles are not consistent with an aerobic physiological profile...