Results 281 to 290 of about 49,144 (342)

A critical assessment of sympathetic restraint in submaximal exercise: Implications for integrated cardiovascular circuit control in exercise

Experimental Physiology, EarlyView.
Abstract Sympathetic restraint in exercising muscle is currently viewed as required to prevent ‘excess’ vasodilatation from exceeding the cardiac output (Q̇${\dot{Q}} $) response, even in submaximal exercise. Certainly, muscle vasodilatory capacity dictates the requirement for sympathetic restraint when cardiac pumping capacity is approached.
Patrick J. Drouin, Stacey P. A. Forbes, Abby K. Zedic, Stuart P. S. Mladen, Michael E. Tschakovsky   +4 more
wiley   +1 more source

Comparison between left bundle branch area pacing and right ventricular pacing: ventricular electromechanical synchrony and risk of atrial high-rate episodes. [PDF]

Front Cardiovasc Med
Yang WY, Di BB, Peng H, Sun ZJ.
europepmc   +1 more source

Determinants of cardiac output in health and heart failure

Experimental Physiology, EarlyView.
Abstract Sustained physical exercise depends on delivery of oxygenated blood to exercising muscle. At least among healthy individuals, bulk transport of blood is tightly matched to metabolic demand, such that cardiac output increases by ∼6 L/min for every 1 L/min increase in oxygen uptake. Multiple factors contribute to the regulation of cardiac output,
Ibrahim Ainab, Natalie Van Ochten, Emmett Suckow, Kathryn Pierce, Chelsea Arent, Joseph Kay, Lindsey M. Forbes, William K. Cornwell III   +7 more
wiley   +1 more source

Incidence, Risk Factors, and Outcomes of Left Atrial Enlargement in Patients Requiring Right Ventricular Pacing: A Retrospective Study of 461 Cases from 2012 to 2020. [PDF]

Med Sci Monit
Lee WC, Chang WT, Fang HY, Chen HC, Chen MC, Liu PY.   +5 more
europepmc   +1 more source

Intensified training augments cardiac function, but not blood volume, in male youth elite ice hockey team players

Experimental Physiology, EarlyView.
Abstract While it is well‐established that a period of interval training performed at near maximal effort, such as speed endurance training (SET), enhances intense exercise performance in well‐trained individuals, less is known about its effect on cardiac morphology and function as well as blood volume.
Mads Fischer, Jan S. Jeppesen, Jeppe F. Vigh‐Larsen, Eric J. Stöhr, Magni Mohr, Kate A. Wickham, Lasse Gliemann, Jens Bangsbo, Ylva Hellsten, Morten Hostrup   +9 more
wiley   +1 more source

Mechanisms mediating muscle metaboreflex control of cardiac output during exercise: Impaired regulation in heart failure

Experimental Physiology, EarlyView.
Abstract The ability to increase cardiac output during dynamic exercise is paramount for the ability to maintain workload performance. Reflex control of the cardiovascular system during exercise is complex and multifaceted involving multiple feedforward and feedback systems.
Donal S. O'Leary, Joseph Mannozzi
wiley   +1 more source

Running on empty: Factors underpinning impaired cardiac output reserve in heart failure with preserved ejection fraction

Experimental Physiology, EarlyView.
Abstract Heart failure with preserved ejection fraction (HFpEF) is frequently attributed etiologically to an underlying left ventricular (LV) diastolic dysfunction, although its pathophysiology is far more complex and can exhibit significant variations among patients. This review endeavours to systematically unravel the pathophysiological heterogeneity
Paula Sagmeister, Sebastian Rosch, Karl Fengler, Karl‐Patrik Kresoja, Tommaso Gori, Holger Thiele, Philipp Lurz, Daniel Burkhoff, Karl‐Philipp Rommel   +8 more
wiley   +1 more source

Electrocardiographic Imaging: A New Tool to Ensure Cardiac Resynchronization During Left Bundle Branch Pacing Implant

Pacing and Clinical Electrophysiology, EarlyView.
Margarida Pujol‐Lopez, Mariona Regany‐Closa, Berta Pellicer‐Sendra, Marta Martínez‐Pérez, Rubén Molero, Freddy R. Graterol, María S. Guillem, Eduard Guasch, José M. Tolosana, Lluís Mont   +9 more
wiley   +1 more source

Born high, born fast: Does highland birth confer a pulmonary advantage for sea level endurance?

Experimental Physiology, EarlyView.
Abstract Less than 7% of the world's population live at an altitude above 1500 m. Yet, as many as 67% of medalists in the 2020 men's and women's Olympic marathon, and 100% of medalists in the 2020 men's and women's Olympic 5000 m track race may have been born or raised above this otherwise rare threshold.
Hunter L. Paris, Marissa N. Baranauskas, Keren Constantini, Ren‐Jay Shei, Peyton E. Allen, John R. Jadovitz, Chad C. Wiggins, Cooker Perkins Storm   +7 more
wiley   +1 more source

A Case of Loss of Ventricular Pacing Due to Inappropriate Hysteresis Function Programming After AV Node Ablation. [PDF]

CJC Open
Poletaev V, Essebag V, Bernier ML.
europepmc   +1 more source