Results 111 to 120 of about 2,991,997 (281)

Variation of cardiac cycle during prolonged cycling exercise.

open access: yesThe Annals of physiological anthropology, 1989
The purpose of this study was to elucidate the changes in heart rate (HR), systolic and diastolic time intervals accompanying prolonged cycling exercise. Seven healthy male students (N group) and seven male collegiate long distance runners (LDR group) underwent 60-min bicycle ergometer exercise loaded at 30% and 50% HRmax.
openaire   +3 more sources

Representative full cycle of a cardiac short-axis cine-MRI with 20 frames.

open access: yes, 2013
Representative full cycle of a cardiac short-axis cine-MRI with 20 frames.
Peter Nordbeck (448724)   +13 more
core   +1 more source

Advanced Flexible Robotic Systems for the Early Diagnosis and Treatment of Cancer and Cardiovascular Diseases

open access: yesAdvanced Robotics Research, EarlyView.
Flexible surgical robots are advancing minimally invasive interventions for cardiovascular diseases and cancer by enabling precise navigation through complex, submillimeter anatomical pathways. This review highlights recent innovations in actuation, bio‐integrated sensing, AI‐assisted control, and friction‐reduction technologies, discusses current ...
Hermione Truong   +14 more
wiley   +1 more source

Time-varying pressure loading applied in the FEM simulation over a full cardiac cycle.

open access: yes, 2019
Time-varying pressure loading applied in the FEM simulation over a full cardiac cycle.
Qi Yuan (173787)   +4 more
core   +1 more source

Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI

open access: yesAdvanced Science, EarlyView.
ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia   +7 more
wiley   +1 more source

Calculated active myofiber Young’s modulus (myocardial stiffness) during one cardiac cycle.

open access: yes, 2013
Calculated active myofiber Young’s modulus (myocardial stiffness) during one cardiac cycle.
Abdallah I. Hassaballah (499525)   +3 more
core   +1 more source

NeuroSuite for Long‐Term Functional and Structural Studies of Air‐Liquid Interface Cerebral Organoids

open access: yesAdvanced Science, EarlyView.
NeuroSuite provides a modular hardware‐software platform integrating Neuroweb and NeuroMaps to enable long‐term, in situ electrophysiological interrogation of air–liquid interface organoid slices while preserving tissue architecture. Its components can be used together or independently to capture real‐time activity, spatial network dynamics, and ...
Belquis Haider   +14 more
wiley   +1 more source

Peripheral hemodynamic effects of synchronizing intermittent compression with cardiac pulsation

open access: yesMedicine in Novel Technology and Devices
Intermittent pneumatic compression (IPC) is a noninvasive therapy choice for patients with peripheral arterial diseases, which typically inflates cuffs with a fixed compression period to facilitate peripheral perfusion.
Chenxiao Huang   +3 more
doaj   +1 more source

Pre‐Regenerative Endothelial Cells Empowered by Antler Blood Exosomes Orchestrate Peripheral Nerve Repair

open access: yesAdvanced Science, EarlyView.
The pre‐regenerative vascular niche (PVN) is essential for nerve repair, yet its endothelial blueprint remains unclear. We identified angiogenic ECs (AECs) as the dominant pre‐regenerative subset and found that antler blood–derived exosomes (AB‐EXO) promote repair via IMP3.
Jinsheng Huang   +11 more
wiley   +1 more source

Effect of prolonged exercise in a hypoxic environment on cardiac function and cardiac troponin T

open access: yes, 2004
Background: Exercise induced cardiac fatigue has recently been observed after prolonged exercise. A moderate to high altitude has been suggested as a possible stimulus in the genesis of such cardiac fatigue. Objective: To investigate if exercise induced
Dawson, E.   +17 more
core   +1 more source

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