WEISFELDT, MYRON L., W. A. LOEVEN, AND N. W. SHOCK. Resting and active mechanical properties of trabeculae carneae from aged male rats. Am. J. Physiol. 220(6): 1921-1927. 1971.-Trabeculae carneae from the left ventricles of 1 lto 13and 26to 3 l-monthold male rats were examined in terms of the active and resting length-tension curves. No significant difference between the two groups was noted fo...

Excessive axial tension is very likely involved in the aetiology of tendon lesions, and the most appropriate indicator of tendon stress state is the true stress, the ratio of instantaneous load to instantaneous cross-sectional area (CSA). Difficulties to measure tendon CSA during tension often led to approximate true stress by assuming that CSA is constant during loading (i.e. by the engineerin...

We present for the first time pseudoelasticity and shape memory results on Co–Ni–Al single crystals in tension. The experimental transformation strains approached 6% in tension in the [115] orientation. Despite the considerable volume change (0.0447), the transformation exhibits remarkable pseudoelasticity and shape memory recoverability in tension. A theoretical treatment is presented to expla...

I ntegrin-based focal adhesions initially form at the leading edge of a migrating cell and then mature into larger structures that stably attach and transmit force to the extracellular matrix (ECM). Oakes et al. describe how this maturation process is guided by the actin stress fi bers that assemble at nascent adhesions (1). Maturing focal adhesions grow in size and change their protein composi...

BACKGROUND Tissue expansion is a widely used technique to create skin flaps for the correction of sizable defects in reconstructive plastic surgery. Major complications following the inset of expanded flaps include breakdown and uncontrolled scarring secondary to excessive tissue tension. Although it is recognized that mechanical forces may significantly impact the success of defect repair with...

some numerical and experimental investigations are made on the performance of five different hyperelastic constitutive models (second order polynomial, yeoh, arruda-boyce, ogden and marlow) in tension and compressionmodes. first, the results of the tensile and compression tests on a rubber sample were used to determine the parameters of the models by curve fitting methods. next, by using an alg...