Effect of pulmonary rehabilitation on peripheral muscle fiber remodeling in patients with COPD in GOLD stages II to IV

…, G Stratakos, E Cherouveim, D Athanasopoulos… - Chest, 2011 - Elsevier
Background In most patients with COPD, rehabilitative exercise training partially reverses
the morphologic and structural abnormalities of peripheral muscle fibers. However, whether …

Frontal cerebral cortex blood flow, oxygen delivery and oxygenation during normoxic and hypoxic exercise in athletes

…, H Habazettl, D Athanasopoulos… - The Journal of …, 2011 - Wiley Online Library
Non‐technical summary Exercise capacity is limited at high altitude where hypoxia (ie decreased
amount of inspired oxygen resulting in decreased oxygen in the blood) is present, but it …

Intercostal muscle blood flow limitation in athletes during maximal exercise

I Vogiatzis, D Athanasopoulos… - The Journal of …, 2009 - Wiley Online Library
We investigated whether, during maximal exercise, intercostal muscle blood flow is as high
as during resting hyperpnoea at the same work of breathing. We hypothesized that during …

Intercostal muscle blood flow limitation during exercise in chronic obstructive pulmonary disease

I Vogiatzis, D Athanasopoulos, H Habazettl… - American journal of …, 2010 - atsjournals.org
Rationale: It has been hypothesized that, because of the high work of breathing sustained
by patients with chronic obstructive pulmonary disease (COPD) during exercise, blood flow …

Near-infrared spectroscopy and indocyanine green derived blood flow index for noninvasive measurement of muscle perfusion during exercise

H Habazettl, D Athanasopoulos… - Journal of applied …, 2010 - journals.physiology.org
Near-infrared spectroscopy (NIRS) with the tracer indocyanine green (ICG) may be used for
measuring muscle blood flow (MBF) during exercise, if arterial ICG concentration is …

[HTML][HTML] Effects of interval-load versus constant-load training on the BODE index in COPD patients

IG Nasis, I Vogiatzis, G Stratakos, D Athanasopoulos… - Respiratory …, 2009 - Elsevier
The BODE index is frequently used to assess functional capacity in patients with COPD. The
aim of this study was to investigate the effectiveness of interval-load training (ILT) to improve …

Effect of helium breathing on intercostal and quadriceps muscle blood flow during exercise in COPD patients

…, A Aliverti, D Athanasopoulos… - American Journal …, 2011 - journals.physiology.org
Emerging evidence indicates that, besides dyspnea relief, an improvement in locomotor muscle
oxygen delivery may also contribute to enhanced exercise tolerance following normoxic …

Contribution of respiratory muscle blood flow to exercise‐induced diaphragmatic fatigue in trained cyclists

I Vogiatzis, D Athanasopoulos… - The Journal of …, 2008 - Wiley Online Library
We investigated whether the greater degree of exercise‐induced diaphragmatic fatigue
previously reported in highly trained athletes in hypoxia (compared with normoxia) could have a …

The contribution of intrapulmonary shunts to the alveolar‐to‐arterial oxygen difference during exercise is very small

…, R Boushel, D Athanasopoulos… - The Journal of …, 2008 - Wiley Online Library
Exercise is well known to cause arterial to fall and the alveolar–arterial difference (Aa ) to
increase. Until recently, the physiological basis for this was considered to be mostly ventilation/…

Expiratory muscle loading increases intercostal muscle blood flow during leg exercise in healthy humans

D Athanasopoulos, Z Louvaris… - Journal of Applied …, 2010 - journals.physiology.org
We investigated whether expiratory muscle loading induced by the application of expiratory
flow limitation (EFL) during exercise in healthy subjects causes a reduction in quadriceps …