Results 111 to 120 of about 1,634,991 (251)

Effect of artificial gravity on calcaneal bone marrow adipose tissue and mineral content in female and male participants in 60 days of bed rest

Experimental Physiology, EarlyView.
Abstract Modulation of bone marrow adipose tissue (BMAT) with prolonged inactivity was reported in haemopoietic but not in non‐haemopoietic bones. This prospective randomized controlled trial submitted 16 men and 8 women to 60 days of 6° head‐down‐tilt bed rest.
Tammy Liu, Gerd Melkus, Tim Ramsay, Alain Berthiaume, Gabriele Armbrecht, Guy Trudel   +5 more
wiley   +1 more source

Contractility rate responsive pacemaker: An important step toward an artificial sinus node for severe chronotropic incompetence [PDF]

, 2000
Jacques Clémenty, Stéphane Garrigue, Pierre Jaı̈s, A. Kobeissi, Philippe Le Métayer, Mélèze Hocini, Michel Haı̈ssaguerre   +6 more
openalex   +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

The motor efficacy of the artificial colonic pacemaker in colonic inertia patients [PDF]

, 2002
Ahmed Shafik
openalex   +1 more source

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source

EL FENÓMENO DE LA MEMORIA ELÉCTRICA: UN GRAN SIMULADOR. PRESENTACIÓN DE DOS CASOS / Electrical memory phenomenon - a great deceiver. Presentation of two cases [PDF]

CorSalud, 2010
Resumen Presentamos dos pacientes en los que se desarrollaron ondas T negativas que aparecen en el electrocardiograma por la memoria eléctrica cardíaca.
Raimundo Carmona Puerta, Ramiro R. Ramos Ramírez, Arnaldo Rodríguez León, Gustavo Padrón Peña, Elibet Chávez González, Juan Miguel Cruz Elizundia   +5 more
doaj  

Wireless Charging Device for Artificial Cardiac Pacemaker [PDF]

, 2015
Quan Xiong
openalex   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

The Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger, Verena Charwat, Kevin E. Healy, Samuel Wall, Aslak Tveito   +4 more
wiley   +1 more source

Survey of ST-Segment Changes due to Active Lead Fixation during Permanent Pacemaker Device Implantation as a Prognostic Indicator of its Performance

مجله دانشکده پزشکی اصفهان, 2017
Background: Active lead implantation can create injury in myocardium that may be associated with a ST-segment elevation. This ST-segment elevation may be correlated with changes in other parameters such as threshold, sense, amplitude, impedance, and ...
Sima Sayah, Farzad Pourkalbasi-Esfahani, Erfan Torabi   +2 more
doaj  

Advancing Myocardial T1 Mapping: A Comparative Study of the Frequency‐Independent MFA Sequence and Standard MOLLI

NMR in Biomedicine, Volume 38, Issue 5, May 2025.
The multiflip angle (MFA) sequence provides a frequency‐independent and motion‐robust alternative to the MOLLI sequence for myocardial T1 mapping. Although MOLLI demonstrated higher measurement precision, it showed heart rate dependency and sex‐related differences in T1 values. In contrast, MFA maintained stable T1 values across varying heart rates and
Vitali Koch, Mukaram Rana, Christina Seppi, Simon Martin, Thomas Vogl, David M. Leistner, Marco M. Ochs, Sebastian M. Haberkorn   +7 more
wiley   +1 more source