Results 141 to 150 of about 31,322 (206)

Increases in skin perfusion and blood oxygen in the non‐exercising human limbs during exercise in the heat: Implications for control of circulation

Experimental Physiology, EarlyView.
Abstract Blood flow in the inactive limb tissues and skin is widely thought to decline during incremental exercise to exhaustion due to augmented sympathoadrenal vasoconstrictor activity, but direct evidence to support this view is lacking. Here, we investigated the inactive‐forearm haemodynamic (Q̇forearm${\dot{Q}}_{\mathrm{forearm}}$) and oxygenation
Steven J. Trangmar, José González‐Alonso   +1 more
wiley   +1 more source

Impact of heat exposure during immobilization‐induced de‐training and re‐training on aerobic capacity and haemoglobin mass

Experimental Physiology, EarlyView.
Abstract The aim of this work was to assess the effect of heat exposure on cardiorespiratory and haematological responses during de‐training and re‐training. Nineteen men (33.8 ± 2.7 years; 182 ± 5.7 cm, 84.4 ± 9.3 kg) completed 4 weeks of pre‐training followed by heat exposure (HEAT; n = 9) or control (CON; n = 10).
Scott Cocking, Nathan Townsend, Mariem Labidi, Khouloud Mtibaa, Marine Alhammoud, Nada Nasir, Nelda Nader, Karim Khalladi, Claire Tourny, Abdulaziz Farooq, Sebastien Racinais   +10 more
wiley   +1 more source

Carotid artery dissection linked to intermittent apnoeic swimming: A case–control study

Experimental Physiology, EarlyView.
Abstract Internal carotid artery (ICA) dissection is a rare and potentially devastating cause of cerebral ischaemia, initiated by an intimal tear or rupture of the vasa vasorum, that can lead to an intraluminal thrombus, vascular stenosis, occlusion, or dissecting aneurysm formation.
Damian M. Bailey, Richard G. Davies, Brenig L. Gwilym, Benjamin S. Stacey, Danny Walmsley, Michael H. Lewis, Josip Butkovic, Ivan Mumlek, Brad Perry, Zvonomir Vrselja, Shigehiko Ogoh, James A. Pawelczyk, Mohamad Bashir, Richard D. White, Ian M. Williams   +14 more
wiley   +1 more source

Cerebral and peripheral haemodynamics at rest and in response to orthostasis during 3 days of simulated heatwave

Experimental Physiology, EarlyView.
Abstract Acute heat stress reduces cerebral haemodynamics and orthostatic tolerance. However, the haemodynamic response to orthostasis during prolonged heat stress typical of heatwaves is unknown. We hypothesised that thermoregulatory‐induced elevations in peripheral haemodynamics during 3 days of simulated heatwave would exacerbate orthostatic‐induced
Alexander T. Friend, Samuel J. Oliver, Lydia L. Simpson, Carmen Possnig, Gabriella M. K. Rossetti, Jason T. Fisher, Lydia Tsoutsoubi, Konstantinos Mantzios, Urša Ciuha, Leonidas G. Ioannou, Igor B. Mekjavic, Justin S. Lawley   +11 more
wiley   +1 more source

Daily hot‐water immersion preserves altitude‐induced haemoglobin mass expansion following descent independent of erythropoietin

Experimental Physiology, EarlyView.
Abstract High‐altitude exposure increases haemoglobin mass (Hbmass), a key determinant of arterial oxygen‐carrying capacity, but following descent this adaptation can regress toward baseline within 7 days. Long‐term heat acclimation has emerged as an alternative stimulus for Hbmass expansion; however, whether post‐altitude passive‐heat exposure can ...
Elliott J. Jenkins, Jodie L. Koep, Andrew J. M. Douglas, Lauren E. Maier, Connor A. Howe, Sarah Sheitelman, Liam D. Corr, Christoph Siebenmann, Michael G. Hughes, Joshua C. Tremblay, Philip N. Ainslie, Travis D. Gibbons, Mike Stembridge   +12 more
wiley   +1 more source

Water Vapor Radiometer for ALMA

, 2009
Radiometer for the ALMA project from scratch in 18 months and will deliver 50 units within the next 18 months. Theradiometer includes an Optical Relay, Mounting Frame as well as the Radiometer core module.
Andersson, S., Ekebrand, Terese, Tegnander, Christina, Sobis, Peter, Krus, M., Emrich, Anders, Wannerbratt, M., Cherednichenko, Serguei, Krus, U., Runesson, David   +9 more
core   +1 more source

The role of group III/IV afferent feedback in the ventilatory, pressor and metabolic responses to exercise in normoxia and hypoxia

The Journal of Physiology, EarlyView.
Abstract figure legend Participants completed cycling exercise with (placebo) and without (25 µg intrathecal fentanyl) intact group III/IV muscle afferent feedback in three settings: normoxia, acute hypoxia and chronic hypoxia after 7–9 days of acclimatisation (∼3800 m). Blocking afferent feedback suppressed exercise hyperpnoea across all environments,
Elliott J. Jenkins, Phuong L. Ha, Connor A. Howe, Jay M. J. R. Carr, Justin A. Monteleone, Andrew J. M. Douglas, Abigail Nicholson, Andrew Steele, Brydie Lemkes, Jodie L. Koep, L. Madden Brewster, Jennifer Duffy, Mathew I. B. Debenham, Tena Monaghan, Declan Isaak, Jacob McCormick, Brian H. Dalton, Chris J. McNeil, Jared Baylis, David MacLeod, Mike Stembridge, Markus Amann, Philip N. Ainslie, Travis D. Gibbons   +23 more
wiley   +1 more source

Effects of exercise followed by a low‐carbohydrate diet on peak fat oxidation and mitochondrial coupling control and efficiency in healthy trained men

The Journal of Physiology, EarlyView.
Abstract figure legend Overview of study design and key findings. Ten trained men completed a randomized crossover study with two conditions differing in muscle glycogen availability (high versus low), achieved through a glycogen depletion protocol followed by a high‐ or low‐carbohydrate diet.
K. K. Lange, L. Becker, T. Rømer, M. Hassing, S. T. Høybye, N. Smailes, P. Pardo, B. Danisman, P. F. Andersen, S. Larsen, J. W. Helge   +10 more
wiley   +1 more source

Respiratory Support With Nasal High Flow Reduces Opioid Requirements During Endoscopic Retrograde Cholangiopancreatography

DEN Open, Volume 7, Issue 1, April 2027.
ABSTRACT Objectives Nasal high flow (NHF) improves oxygenation, reduces the work of breathing, and stabilizes ventilation. In endoscopic retrograde cholangiopancreatography (ERCP) under dexmedetomidine‐based sedation, opioids are often required but increase the risk of respiratory depression and delayed recovery.
Tomotaka Mori, Takao Ayuse, Shuntaro Sato, Taiga Ichinomiya, Rintaro Yano, Akane Shimakura, Yasuhiko Nakao, Kosuke Takahashi, Masanori Fukushima, Masafumi Haraguchi, Ryu Sasaki, Eisuke Ozawa, Satoshi Miuma, Stanislav Tatkov, Tetsuya Hara, Hisamitsu Miyaaki   +15 more
wiley   +1 more source

Radiometer System Design

, 2010
The goal of this document is to summarize the development process and the intended technical specifications of the millimetre-wave imaging radiometer of the SUM demonstrator, in order to fulfil the requirements expressed in the scenario and operational ...
Dill, Stephan, Peichl, Markus
core