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Keywords: exercise
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Journal Articles
J Exp Biol (2023) 226 (5): jeb244847.
Published: 10 March 2023
... 40°C; this upper threshold for impairment of endurance corresponds to temperatures that induced heat responses at rest. Exercise Metabolism Thermoneutral zone Hyperthermia Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038 RGPIN...
Includes: Supplementary data
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Journal Articles
J Exp Biol (2023) 226 (4): jeb244733.
Published: 17 February 2023
... performance of rainbow trout in sea water is more dependent on coronary perfusion by assessing the effects of coronary ligation on cardiorespiratory function in resting and exhaustively exercised trout acclimated to fresh water or sea water. While ligation only had minor effects on resting cardiorespiratory...
Journal Articles
J Exp Biol (2022) 225 (15): jeb243646.
Published: 9 August 2022
... increased COT behaviourally by adjusting movement rate and habitat selection. Here, we review the theory underlying COT and the impact of environmental changes on COT. Increasing temperatures, in particular, increase COT and its variability between individuals. Thermal acclimation and exercise can affect...
Journal Articles
J Exp Biol (2022) 225 (11): jeb244239.
Published: 6 June 2022
... curve protocol provides a respiratory phenotyping platform to compare a fish's ability to exercise under hypoxia. We recommend the five-point hypoxic performance curve as a reliable, time-efficient and reproducible methodology to functionally quantify the hypoxic performance of individual fish...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243421.
Published: 8 March 2022
... O 2 uptake capacity and possibly aerobic performance in situations of high O 2 demand (e.g. exercise) or low O 2 availability (e.g. environmental hypoxia). We also found that FW fishes had significantly higher haemoglobin (Hb)–O 2 binding affinities than SW species, which will increase the O 2...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (1): jeb243194.
Published: 6 January 2022
... Exercise French Government France Canada Research Fund 149716-2018 Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038 05955-2017 Canada Research Chair 950-230954 To improve physical performance...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (16): jeb210849.
Published: 13 August 2021
... into the systems-level mechanisms underlying the evolution of complex performance traits. O 2 cascade Symmorphosis Physiological control concept Exercise Thermogenic capacity High-altitude adaptation Complex traits Natural Sciences and Engineering Research Council of Canada http://dx.doi.org...
Journal Articles
J Exp Biol (2021) 224 (13): jeb232520.
Published: 29 June 2021
... provide evidence that O 2 supply capacity is not constant in all fishes, with some species exhibiting an elevated O 2 supply capacity in hypoxic environments. We further discuss the divergent selective pressures on hypoxia- and exercise-based cardiorespiratory adaptations in fishes, while also considering...
Includes: Supplementary data
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Journal Articles
J Exp Biol (2021) 224 (4): jeb239699.
Published: 25 February 2021
... developmental periods potentially has long-lasting impacts on hosts. Using four selectively bred high runner and four non-selected control lines of mice, we examined the effects of early-life diet and exercise manipulations on the adult microbiome by sequencing the hypervariable internal transcribed spacer...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (5): jeb217125.
Published: 11 March 2020
... to the interacting stressors of hypoxia and exercise vary among individuals, and that HT and change in HT are not simple functions of aerobic metabolic rate. * Author for correspondence ( [email protected] ) Competing interests The authors declare no competing or financial interests. 22 10 2019...
Journal Articles
J Exp Biol (2020) 223 (5): jeb214163.
Published: 11 March 2020
... and hunting prey. This response is variable and modulated by factors such as dive duration, depth, exercise and cognitive control. This study assessed the potential role of exercise and relative lung volume in the regulation of heart rate ( f H ) during dives of adult female California sea lions instrumented...
Journal Articles
J Exp Biol (2020) 223 (4): jeb215335.
Published: 20 February 2020
... C. Guyton (1919–2003) revolutionised our understanding of the circulation by arguing that regulation of the heart per se plays only a minor role in the normal control of cardiac output, despite heart rate ( f H ) being one of the most obvious factors to change during exercise. Instead, Guyton...
Journal Articles
J Exp Biol (2019) 222 (23): jeb213058.
Published: 10 December 2019
... activity patterns, we analyzed femora of growing turkeys that were experimentally exercised for 10 weeks on either an inclined or declined treadmill or served as controls ( N =15 individuals, 5 per group). Our multivariate approach identified certain patterns involving three different entheses (associated...
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Journal Articles
J Exp Biol (2019) 222 (14): jeb199711.
Published: 19 July 2019
...Fabo Shan; Tao Yang; Junxia Li; Qing-Yuan Huang ABSTRACT It is well known that exercise-induced fatigue is exacerbated following hypoxia exposure and may arise from central and/or peripheral mechanisms. To assess the relative contribution of peripheral and central factors to exercise-induced...
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Journal Articles
J Exp Biol (2019) 222 (9): jeb201400.
Published: 30 April 2019
... in zebrafish ( Danio rerio ). We rejected the hypothesis that mitochondrial efficiency (P/O ratios) predicted CoT. We also rejected the hypothesis that CoT is modulated by temperature acclimation, exercise training or their interaction, although CoT increased with increasing acute test temperature...