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1-9 of 9
Keywords: age
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2025) 228 (2): jeb249738.
Published: 17 January 2025
...Negin Fallah; Owen N. Beck ABSTRACT Older adults walk using their hips relatively more and their ankles relatively less than young adults. This ‘distal-to-proximal redistribution’ in leg joint mechanics is thought to drive the age-related increase in metabolic rate during walking. However, many...
Includes: Supplementary data
Journal Articles
Simon Chouinard-Boisvert, Léopold Ghinter, Amélie St-Pierre, Mathieu Mortz, Véronique Desrosiers, France Dufresne, Jean-Claude Tardif, Johnny Huard, Pascal Sirois, Samuel Fortin, Pierre U. Blier
Journal:
Journal of Experimental Biology
J Exp Biol (2024) 227 (20): jeb247502.
Published: 15 October 2024
... to the thermal sensitivity of cardiac mitochondria in the three-spined stickleback ( Gasterosteus aculeatus ), and if it is influenced by heart fatty acid composition and age. To do so, we measured the CT max of 30 fish. The cardiac mitochondrial oxygen consumption was measured by high resolution respirometry...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2015) 218 (13): 1990–1994.
Published: 1 July 2015
...Shira D. Gordon; James F. C. Windmill ABSTRACT Insects display signs of ageing, despite their short lifespan. However, the limited studies on senescence emphasize longevity or reproduction. We focused on the hearing ability of ageing adult locusts, Schistocerca gregaria . Our results indicate...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2014) 217 (21): 3929–3934.
Published: 1 November 2014
...Jennie S. Garbutt; Anna J. P. O'Donoghue; Seanna J. McTaggart; Philip J. Wilson; Tom J. Little Immunity in vertebrates is well established to develop with time, but the ontogeny of defence in invertebrates is markedly less studied. Yet, age-specific capacity for defence against pathogens, coupled...
Includes: Supplementary data
Journal Articles
Maryline Le Vaillant, Rory P. Wilson, Akiko Kato, Claire Saraux, Nicolas Hanuise, Onésime Prud'Homme, Yvon Le Maho, Céline Le Bohec, Yan Ropert-Coudert
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (21): 3685–3692.
Published: 1 November 2012
... to resource availability, particularly as a function of depth. We investigated how foraging and diving abilities vary with age in a long-lived seabird. During two breeding seasons, small accelerometers were deployed on young (5 year old) and older (8/9 year old) brooding king penguins ( Aptenodytes...
Includes: Supplementary data
Journal Articles
J. L. Hassrick, D. E. Crocker, N. M. Teutschel, B. I. McDonald, P. W. Robinson, S. E. Simmons, D. P. Costa
Journal:
Journal of Experimental Biology
J Exp Biol (2010) 213 (4): 585–592.
Published: 15 February 2010
... stores (blood volume and muscle myoglobin) and diving behavior in adult female northern elephant seals, Mirounga angustirostris , to investigate age-related effects on diving performance. Blood volume averaged 74.4±17.0 liters in female elephant seals or 20.2±2.0% of body mass. Plasma volume averaged...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2008) 211 (10): 1571–1578.
Published: 15 May 2008
... shortening (before take-off). In old age, muscular force is reduced,but the deficit in force is less during stretching than during shortening. The greater loss in concentric versus eccentric strength with aging led us to hypothesize that older versus younger adults would increase the landing–take-off...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (7): 1221–1231.
Published: 1 April 2003
...Mark A. Chappell; Enrico L. Rezende; Kimberly A. Hammond SUMMARY Age impacts the phenotype of all multicellular animals, but lifetime changes in physiological traits are poorly understood for all but a few species. Here, we describe a cross-sectional study of age effects on body composition...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (2): 283–289.
Published: 15 January 2001
... of the topographic anatomy and biology of this species are described. To standardize experimental animals in future studies, the effects of age, sex and trematode infestation on the regeneration capacity of H. ulvae have been evaluated. The high capacity for regeneration together with the possibility of using...