Capillary recruitment in a theoretical model for blood flow regulation in heterogeneous microvessel networks
In striated muscle, the number of capillaries containing moving red blood cells increases
with increasing metabolic demand. This phenomenon, termed capillary recruitment, has long …
with increasing metabolic demand. This phenomenon, termed capillary recruitment, has long …
Influence of high affinity haemoglobin on the response to normoxic and hypoxic exercise
…, JRA Shepherd, SK Roberts, TK Roy… - The Journal of …, 2020 - Wiley Online Library
Key points Theoretical models suggest there is no benefit of high affinity haemoglobin to
preserve maximal oxygen uptake in acute hypoxia but the comparative biology literature has …
preserve maximal oxygen uptake in acute hypoxia but the comparative biology literature has …
The oxygen cascade during exercise in health and disease
PB Dominelli, CC Wiggins, TK Roy, TW Secomb… - Mayo Clinic …, 2021 - Elsevier
The oxygen transport cascade describes the physiological steps that bring atmospheric oxygen
into the body where it is delivered and consumed by metabolically active tissue. As such, …
into the body where it is delivered and consumed by metabolically active tissue. As such, …
Modelling the relationships between haemoglobin oxygen affinity and the oxygen cascade in humans
JRA Shepherd, PB Dominelli, TK Roy… - The Journal of …, 2019 - Wiley Online Library
Key points Haemoglobin affinity is an integral concept in exercise physiology that impacts
oxygen uptake, delivery and consumption. How chronic alterations in haemoglobin affinity …
oxygen uptake, delivery and consumption. How chronic alterations in haemoglobin affinity …
Effects of impaired microvascular flow regulation on metabolism‐perfusion matching and organ function
TK Roy, TW Secomb - Microcirculation, 2021 - Wiley Online Library
Impaired tissue oxygen delivery is a major cause of organ damage and failure in critically ill
patients, which can occur even when systemic parameters, including cardiac output and …
patients, which can occur even when systemic parameters, including cardiac output and …
[HTML][HTML] A prospective trial of elective extubation in brain injured patients meeting extubation criteria for ventilatory support: a feasibility study
…, MT Keegan, DR Brown, FX Whalen, TK Roy… - Critical Care, 2008 - Springer
Introduction To assess the safety and feasibility of recruiting mechanically ventilated patients
with brain injury who are solely intubated for airway protection and randomising them into …
with brain injury who are solely intubated for airway protection and randomising them into …
BiPAP in early Guillain-Barré syndrome may fail
EFM Wijdicks, TK Roy - Canadian journal of neurological sciences, 2006 - cambridge.org
Background:Non-invasive mechanical ventilation (BiPAP) has been introduced for use in
neuromuscular respiratory disease such as amyotrophic lateral sclerosis and myasthenia …
neuromuscular respiratory disease such as amyotrophic lateral sclerosis and myasthenia …
Functional implications of microvascular heterogeneity for oxygen uptake and utilization
TK Roy, TW Secomb - Physiological Reports, 2022 - Wiley Online Library
In the vascular system, an extensive network structure provides convective and diffusive
transport of oxygen to tissue. In the microcirculation, parameters describing network structure, …
transport of oxygen to tissue. In the microcirculation, parameters describing network structure, …
Theoretical comparison of wall-derived and erythrocyte-derived mechanisms for metabolic flow regulation in heterogeneous microvascular networks
TK Roy, AR Pries, TW Secomb - American Journal of …, 2012 - journals.physiology.org
The objective of this study is to compare the effectiveness of metabolic signals derived from
erythrocytes and derived from the vessel wall for regulating blood flow in heterogeneous …
erythrocytes and derived from the vessel wall for regulating blood flow in heterogeneous …
Theoretical analysis of the determinants of lung oxygen diffusing capacity
TK Roy, TW Secomb - Journal of theoretical biology, 2014 - Elsevier
The process of pulmonary oxygen uptake is analyzed to obtain an explicit equation for lung
oxygen diffusing capacity in terms of hematocrit and pulmonary capillary diameter. An …
oxygen diffusing capacity in terms of hematocrit and pulmonary capillary diameter. An …