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All Outputs (185)

Structure, ontogeny and evolution of the patellar tendon in emus (Dromaius novaehollandiae) and other palaeognath birds (2015)
Journal Article
Regnault, S., Pitsillides, A. A., & Hutchinson, J. R. (2015). Structure, ontogeny and evolution of the patellar tendon in emus (Dromaius novaehollandiae) and other palaeognath birds. https://doi.org/10.7717/peerj.711

The patella (kneecap) exhibits multiple evolutionary origins in birds, mammals, and lizards, and is thought to increase the mechanical advantage of the knee extensor muscles. Despite appreciable interest in the specialized anatomy and locomotion of p... Read More about Structure, ontogeny and evolution of the patellar tendon in emus (Dromaius novaehollandiae) and other palaeognath birds.

Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae) (2014)
Journal Article
Lamas, L., Main, R. P., & Hutchinson, J. R. (2014). Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae). https://doi.org/10.7717/peerj.716

Emus (Dromaius novaehollandiae) are exclusively terrestrial, bipedal and cursorial ratites with some similar biomechanical characteristics to humans. Their growth rates are impressive, as their body mass increases eighty-fold from hatching to adultho... Read More about Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus (Dromaius novaehollandiae).

Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb (2014)
Journal Article
Hutchinson, J. R., Paxton, H. P., Codd, J., Rankin, J. W., & Tickle, P. (2014). Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb. https://doi.org/10.7717/peerj.473

In broiler chickens, genetic success for desired production traits is often shadowed by welfare concerns related to musculoskeletal health. Whilst these concerns are clear, a viable solution is still elusive. Part of the solution lies in knowing how... Read More about Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb.

Anatomical and biomechanical traits of broiler chickens across ontogeny. Part I. Anatomy of the musculoskeletal respiratory apparatus and changes in organ size (2014)
Journal Article
Tickle, P. G., Paxton, H. P., Rankin, J. W., Hutchinson, J. R., & Codd, J. R. (2014). Anatomical and biomechanical traits of broiler chickens across ontogeny. Part I. Anatomy of the musculoskeletal respiratory apparatus and changes in organ size. https://doi.org/10.7717/peerj.432

Genetic selection for improved meat yields, digestive efficiency and growth rates have transformed the biology of broiler chickens. Modern birds undergo a 50-fold multiplication in body mass in just six weeks, from hatching to slaughter weight. Howev... Read More about Anatomical and biomechanical traits of broiler chickens across ontogeny. Part I. Anatomy of the musculoskeletal respiratory apparatus and changes in organ size.

Regional variation in digital cushion pressure in the forefeet of horses and elephants (2014)
Journal Article
Warner, S. E., Henry, V., Roskilly, K., Hildebrandt, T., Panagiotopoulou, O., & Hutchinson, J. R. (2014). Regional variation in digital cushion pressure in the forefeet of horses and elephants. PeerJ PrePrints, https://doi.org/10.7287/peerj.preprints.231v1

In this study, we seek to understand how the digital cushion morphologies evident in horse and elephant feet influence internal and external foot pressures. Our novel use of invasive blood pressure monitoring equipment, combined with a pressure pad a... Read More about Regional variation in digital cushion pressure in the forefeet of horses and elephants.

Open data and digital morphology
Journal Article
Davies, T. G., Rahman, I. A., Lautenschlager, S., Cunningham, J. A., Asher, R. J., Barrett, P. M., Bates, K. T., Bengtson, S., Benson, R. B. J., Boyer, D. M., Braga, J., Bright, J. A., Claessens, L. P. A. M., Cox, P. G., Dong, X. P., Evans, A. R., Falkingham, P. L., Friedman, M., Garwood, R. J., Goswami, A., …Donoghue, P. C. J. (in press). Open data and digital morphology. https://doi.org/10.1098/rspb.2017.0194

Over the past two decades, the development of methods for visualizing and analysing specimens digitally, in three and even four dimensions, has transformed the study of living and fossil organisms. However, the initial promise that the widespread app... Read More about Open data and digital morphology.

The locomotor kinematics of Asian and African elephants: changes with speed and size
Journal Article
Hutchinson, J. R., Schwerda, D., Famini, D., Dale, R. H. I., Fischer, M. S., & Kram, R. (in press). The locomotor kinematics of Asian and African elephants: changes with speed and size. Journal of Experimental Biology, 209(19), 3812-3827. https://doi.org/10.1242/jeb.02443

For centuries, elephant locomotion has been a contentious and confusing challenge for locomotion scientists to understand, not only because of technical difficulties but also because elephant locomotion is in some ways atypical of more familiar quadr... Read More about The locomotor kinematics of Asian and African elephants: changes with speed and size.

Analysis of hindlimb muscle moment arms in Tyrannosaurus rex using a three-dimensional musculoskeletal computer model: implications for stance, gait, and speed
Journal Article
Hutchinson, J. R., Anderson, F. C., Blemker, S. S., & Delp, S. L. Analysis of hindlimb muscle moment arms in Tyrannosaurus rex using a three-dimensional musculoskeletal computer model: implications for stance, gait, and speed. Paleobiology, 31(4), 676-701. https://doi.org/10.1666/0094-8373%282005%29031%5B0676%3AAOHMMA%5D2.0.CO%3B2