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Keywords: Myofibrils
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Journal Articles
J Exp Biol (2025) 228 (1): JEB249489.
Published: 10 January 2025
... cardiomyocyte – space unavailable for myofibrils – it is unclear how small mammals generate enough contractile force to pump blood into circulation. Here, we investigated whether the total number or volume of cardiomyocytes in the left ventricle compensates for allometry-related volume shifts of cardiac...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (17): jeb184713.
Published: 5 September 2018
...). Variables expressed in absolute terms, including ventricular mass, cardiomyocyte volume, capillary volume, total capillary length, myofibril volume, mitochondrial volume and mitochondrial inner membrane surface area, all scaled against body mass with exponents statistically indistinguishable between...
Journal Articles
J Exp Biol (2016) 219 (9): 1311–1316.
Published: 1 May 2016
... but crucial deletion in the titin protein. Myofibrils from normal and mdm mice were stretched from sarcomere lengths of 2.5 to 6.0 μm. Actively stretched myofibrils from normal mice were stiffer and generated more force than passively stretched myofibrils at all sarcomere lengths. No increase in stiffness...
Journal Articles
J Exp Biol (2016) 219 (2): 205–213.
Published: 1 January 2016
... phenotypic plasticity with different types of exercise, disuse, ageing and disease. Skeletal muscle Molecular Pathways Myofibrils Mitochondria Capillary Strength Endurance It must have been obvious for most of human history that physical performance capacity varies massively between...
Journal Articles
J Exp Biol (1985) 115 (1): 55–68.
Published: 1 March 1985
... in the contractile proteins and metabolic systems begin in days and are complete in weeks. During these transitional phases of adaptation the fibres have an unusual complement of components never seen in a normal adult fibre. Extreme alterations, such as myofibril disassembly or supranormal amounts of mitochondria...