Results 21 to 30 of about 15,908 (215)

Orthostatic intolerance as a potential contributor to prolonged fatigue and inconsistent performance in elite swimmers

open access: yesBMC Sports Science, Medicine and Rehabilitation, 2022
Background Athletic underperformance is characterized by fatigue and an inability to sustain a consistent exercise workload. We describe five elite swimmers with prolonged fatigue and athletic underperformance.
Lindsay S. Petracek   +3 more
doaj   +1 more source

Neurovisceral phenotypes in the expression of psychiatric symptoms [PDF]

open access: yes, 2015
This review explores the proposal that vulnerability to psychological symptoms, particularly anxiety, originates in constitutional differences in the control of bodily state, exemplified by a set of conditions that include Joint Hypermobility, Postural ...
Aktas   +132 more
core   +4 more sources

Reduced heart rate variability predicts fatigue severity in individuals with chronic fatigue syndrome/myalgic encephalomyelitis [PDF]

open access: yes, 2020
Heart rate variability (HRV) is an objective, non-invasive tool to assessing autonomic dysfunction in chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME).
Capdevila, Lluis   +3 more
core   +2 more sources

Orthostatic symptoms does not always manifest during tilt-table test in pediatric postural orthostatic tachycardia syndrome patients [PDF]

open access: yesKorean Journal of Pediatrics, 2013
PurposeChronic day-to-day symptoms of orthostatic intolerance are the most notable features of postural orthostatic tachycardia syndrome (POTS). However, we have encountered patients with such symptoms and excessive tachycardia but with no symptoms ...
Tae-Eon Huh   +10 more
doaj   +1 more source

Orthostatic Hypertension in Children: An Update

open access: yesFrontiers in Pediatrics, 2020
The concept of orthostatic hypertension in children was first proposed in 2012. The pathogenesis is not clear by now. Orthostatic hypertension is one of the important causes of orthostatic intolerance in children and is related to the development of ...
Yang Hu   +4 more
doaj   +1 more source

Frequency of hemodynamic response to orthostatic stress in heart failure with reduced ejection fraction, associations with clinical blood pressure

open access: yesРоссийский кардиологический журнал, 2022
Aim. To assess hemodynamic response to active standing test (AST) with beat-to-beat blood pressure (BP) monitoring, their association with office BP and symptoms of orthostatic intolerance in patients with heart failure (HF).Material and methods ...
D. N. Fedorova   +6 more
doaj   +1 more source

Prevalence and patterns of symptoms of dysautonomia in patients with long‐COVID syndrome: A cross‐sectional study

open access: yesAnnals of Clinical and Translational Neurology, 2022
Background The association between autonomic dysfunction and long‐COVID syndrome is established. However, the prevalence and patterns of symptoms of dysautonomia in long‐COVID syndrome in a large population are lacking.
Ahmed M. Eldokla   +9 more
doaj   +1 more source

Postsynaptic α1-Adrenergic vasoconstriction is impaired in young patients with vasovagal syncope and is corrected by nitric oxide synthase inhibition [PDF]

open access: yes, 2016
BACKGROUND: Syncope is a sudden transient loss of consciousness and postural tone with spontaneous recovery; the most common form is vasovagal syncope (VVS).
Medow, MS   +6 more
core   +1 more source

Post-exercise Body Cooling: Skin Blood Flow, Venous Pooling, and Orthostatic Intolerance

open access: yesFrontiers in Sports and Active Living, 2021
Athletes and certain occupations (e.g., military, firefighters) must navigate unique heat challenges as they perform physical tasks during prolonged heat stress, at times while wearing protective clothing that hinders heat dissipation.
Afton D. Seeley   +4 more
doaj   +1 more source

Pediatric Disorders of Orthostatic Intolerance [PDF]

open access: yesPediatrics, 2018
Orthostatic intolerance (OI), having difficulty tolerating an upright posture because of symptoms or signs that abate when returned to supine, is common in pediatrics. For example, ∼40% of people faint during their lives, half of whom faint during adolescence, and the peak age for first faint is 15 years.
Julian M, Stewart   +13 more
openaire   +2 more sources

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