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Respiratory muscle endurance training among patients with chronic diseases: A systematic review of available evidence.
Exp Physiol
January 2025
Université Clermont Auvergne, Clermont-Ferrand, France.
This systematic review summarizes the available evidence on respiratory muscle endurance training involving voluntary isocapnic hyperpnoea among patients with chronic diseases. It includes both randomized and non-randomized controlled trials implementing this exercise training modality performed either alone or in combination with other interventions. It was conducted using the following databases: PubMed, Google Scholar, Physiotherapy Evidence Database (PEDro), Embase, CINAHL, CENTRAL, Cochrane and ReeDOC.
View Article and Find Full Text PDFReduced Stroke Volume and Brain Perfusion Drive Postural Hyperventilation in Postural Orthostatic Tachycardia Syndrome.
JACC Basic Transl Sci
August 2024
Department of Cardiac Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
Postural hyperventilation has been implicated as a cause of postural orthostatic tachycardia syndrome (POTS), yet the precise mechanisms underlying the heightened breathing response remain unclear. This study challenges current hypotheses by revealing that exaggerated peripheral chemoreceptor activity is not the primary driver of postural hyperventilation. Instead, significant contributions from reduced stroke volume and compromised brain perfusion during orthostatic stress were identified.
View Article and Find Full Text PDFPostoperative exacerbated cough hypersensitivity syndrome induces dramatic respiratory alkalosis, lactatemia, and electrolyte imbalance.
BMC Anesthesiol
September 2024
Institute of Anesthesiology, University Hospital Zurich, Zurich, Switzerland.
Article Synopsis
- * After her surgery, her coughing got really bad, and even strong medications couldn't help her feel better.
- * The case shows that doctors need to carefully plan how to help patients with serious cough problems before and during surgery.
Recovery of ventilatory and metabolic responses to hypoxia in neonatal rats after chronic hypoxia.
Respir Physiol Neurobiol
November 2024
Department of Biology, Bates College, Lewiston, ME 04240, USA.
Chronic hypoxia (CH) during postnatal development attenuates the hypoxic ventilatory response (HVR) in mammals, but there are conflicting reports on whether this plasticity is permanent or reversible. This study tested the hypothesis that CH-induced respiratory plasticity is reversible in neonatal rats and investigated whether the initial plasticity or recovery differs between sexes. Rat pups were exposed to 3 d of normobaric CH (12 % O) beginning shortly after birth.
View Article and Find Full Text PDF[Lung function during normal pregnancy].
Rev Mal Respir
November 2024
Service de pneumologie et explorations respiratoires, CHRU de Tours, Tours, France; CEPR/Inserm UMR1100, Université de Tours, Tours, France. Electronic address:
Pregnancy is associated with major changes in hormonal status, anatomy and physiology involving all systems of a human organism. This narrative review focuses on the most recent data concerning lung function changes during healthy pregnancy. The major findings are as follows: pregnancy is associated with a reduction in static lung volumes reaching 20% of residual functional capacity; it is also associated with chronic alveolar hyperventilation; lastly, it is not associated with significant changes in variables measured by spirometry such as vital capacity, forced expiratory volume in one second and peak expiratory flow, or airway resistance.
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