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David N. Borg, Ian B. Stewart, John O. Osborne, Christopher Drovandi, Joseph T. Costello, Jamie Stanley and Geoffrey M. Minett

blood volume. 10 It may also alleviate temperature-mediated reductions in voluntary activation. 11 , 12 Cold-water recovery is recommended after an acute exertional heat-stress exposure, and benefits may include the enhanced restoration of cardiovascular 13 and neuromuscular 11 , 12 function, and

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experienced a cut in or removal of funding, or a loss of sponsorship, forcing them to return quickly after childbirth. Postpartum, there were expectations of enhanced physiological performance as a result of increased blood volume and greater range of movement in joints. This advantage was counterbalanced by

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decreased central blood volume and cardiac output, increased systemic vascular resistance and BP, splanchnic blood pooling despite apparent splanchnic blood flow reduction, and a shift in the sigmoidal baroreflex relation that favors tachycardia even while supine. Carotid body sensitivity is highly plastic

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Kelly R. Evenson and Camden L. Spade

-worn trackers that assess heart rate without a chest strap use optical light sensors called photoplethysmogram ( Garmin, 2019b ). Heart rate is based on the differential reflection of these light emitting diodes in response to the pulsatile changes in blood volume with each heart contraction near the skin

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Alan J. McCubbin, Bethanie A. Allanson, Joanne N. Caldwell Odgers, Michelle M. Cort, Ricardo J.S. Costa, Gregory R. Cox, Siobhan T. Crawshay, Ben Desbrow, Eliza G. Freney, Stephanie K. Gaskell, David Hughes, Chris Irwin, Ollie Jay, Benita J. Lalor, Megan L.R. Ross, Gregory Shaw, Julien D. Périard and Louise M. Burke

.11.2.223 Malczewska-Lenczowska , J. , Sitkowski , D. , Orysiak , J. , Pokrywka , A. , & Szygula , Z. ( 2013 ). Total haemoglobin mass, blood volume and morphological indices among athletes from different sport disciplines . Archives of Medical Science, 9 ( 5 ), 780 – 787 . PubMed ID: 24273557 doi:10

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Anna-Eva Prick, Jacomine de Lange, Erik Scherder, Jos Twisk and Anne Margriet Pot

cerebral blood volume in primary motor cortex of the rat . Neuroscience , 117 ( 4 ), 1037 – 1046 . PubMed doi:10.1016 12654355 10.1016/S0306-4522(02)00664-4 Teri , L. , Gibbons , L.E. , McCurry , S.M. , Logsdon , R.G. , Buchner , D.M. , Barlow , W.E. , … Larson , E.B. ( 2003 ). Exercise