Results 171 to 180 of about 55,999 (209)

A comparison of the neuromuscular, cardiopulmonary and muscle oxygenation responses to single‐ and double‐leg cycling in older adults

Experimental Physiology, EarlyView.
Abstract Previous work in younger adults has shown that during small muscle mass exercise, the tolerable degree of neuromuscular impairment at task failure is greater than during large muscle mass exercise. However, no study has compared the neuromuscular responses to small and large muscle mass exercise whilst matching exercise modality in older ...
Emily Dodd, Callum G. Brownstein
wiley   +1 more source

Noninvasive Gas Exchange Determinants of Exercise Hemodynamics in Non-Severe Pulmonary Hypertension Associated With Interstitial Lung Disease. [PDF]

Pulm Circ
Dagher C, Moallem N, Fiscus G, Carollo B, Swanson K, Farber HW, Parikh R.   +6 more
europepmc   +1 more source

Impact of living and training at low altitude for several years on endurance performance at higher altitude: Myth or reality

Experimental Physiology, EarlyView.
Abstract The physiological adaptations of long‐term high‐altitude residents without high‐altitude genetic ancestry remain poorly characterized. This study investigated whether permanent residence at low altitude (1200 m) influences performance at higher altitude (2500 m). We compared exercise responses at 2500 m in endurance‐trained athletes living for
Fabienne Durand, Sergi Brau Villaro, Antoine Raberin   +2 more
wiley   +1 more source

From central to pulmonary capillary blood volume: Evidence for a non-linear relationship with pulmonary diffusing capacity. [PDF]

J Physiol
Berg RMG.
europepmc   +1 more source

Effect of chronic high‐altitude hypoxia on retinal vascular phenotype, choroidal and retinal vasoreactivity in Peruvian highlanders

Experimental Physiology, EarlyView.
Abstract High‐altitude chronic hypoxia can induce excessive erythrocytosis (EE, defined as a haemoglobin concentration of ≥21 g/dL in men), leading to hyperviscosity and promoting endothelial dysfunction. We aimed to assess whether EE affects the retinal vascular phenotype and the ophthalmological vascular response to CO2.
Aymeric Paillisser, Julien Vincent Brugniaux, Florence Berquet, Jeremy De Abreu, Stephen Hogg, Emanuele Trucco, Martial Geiser, Tom Macgillivray, Aurélien Pichon, Paul Robach, Benoit Champigneulle, Samuel Verges, Christophe Chiquet   +12 more
wiley   +1 more source

Standardized Spectral Mapping With ¹²⁹Xe Chemical Shift Imaging: Investigating Red Blood Cell Shift Heterogeneity in Pulmonary Hypertension. [PDF]

NMR Biomed
Costelle A, Leewiwatwong S, Mugler JP, Mummy D, Rajagopal S, Driehuys B.   +5 more
europepmc   +1 more source

Effect of an acute exercise bout on alveolar–capillary membrane permeability and interstitial fluid accumulation in COPD

Experimental Physiology, EarlyView.
Abstract Exertional dyspnoea is a debilitating symptom in chronic obstructive pulmonary disease (COPD) and often persists after the cessation of exercise. The underlying mechanisms are not fully understood, and a potential contributing factor that has not previously been investigated is alveolar–capillary membrane breaching with extravasation of fluid ...
Rie Skovly Thomsen, Iben Elmerdahl Rasmussen, Stine Buus Nymand, Anna Agnes Lytzen, Jacob Peter Hartmann, Milan Mohammad, Malte Lund Adamsen, Birgitte Hanel, Jann Mortensen, Ronan M. G. Berg   +9 more
wiley   +1 more source

Pulmonary vascular dysfunction in ARDS Pathophysiology and therapeutic implications. [PDF]

Ann Intensive Care
Zheng H, Fan S, He C, Zhang Y, Geng S, Chen H, Xue Y, Wu Y, Ren W, Zhang C, Liu L, Huang Y, Qiu H.   +12 more
europepmc   +1 more source

Pulmonary arterial mechanoreceptors modulate exercise‐induced sympathetic activation in healthy humans during moderate‐intensity hypoxic exercise

The Journal of Physiology, EarlyView.
Abstract figure legend This randomized cross‐over trial (N = 12) addressed the hypothesis that selective reduction of pulmonary arterial pressure (i.e. manipulation of pulmonary arterial mechanoreceptor activation) during hypoxic exercise would reduce sympathetic outflow (muscle sympathetic nerve activity (MSNA)) in healthy humans.
Michiel T. Ewalts, Thomas D. Griffiths, Andrew J. M. Douglas, Elliott J. Jenkins, Guto Wyn Hughes, Craig D. Steinback, Lydia L. Simpson, Samuel J. Oliver, Mike Stembridge, Jonathan P. Moore   +9 more
wiley   +1 more source

Ventilatory and cerebrovascular responses to exercise in lowlander children acclimatizing to high‐altitude

The Journal of Physiology, EarlyView.
Abstract figure legend To investigate age‐related differences in ventilatory and cerebrovascular responses to exercise at high‐altitude, adults (n = 10, 23–44 years) and children (n = 8, 7–14 years) completed progressive cycling exercise tests at sea‐level and following 6 days of acclimatization at 3800 m.
J. L. Koep, M. G. Rieger, K. J. Smith, G. R. DuManoir, C. M. Tallon, D. R. Perkins, S. Piombo, M. Stembridge, D. M. Cooper, S. Radom‐Aizik, P. N. Ainslie, A. M. McManus   +11 more
wiley   +1 more source