Skeletal muscle, haematological and splenic volume characteristics of elite breath-hold divers
نویسندگان
چکیده
منابع مشابه
Brain Damage in Commercial Breath-Hold Divers
BACKGROUND Acute decompression illness (DCI) involving the brain (Cerebral DCI) is one of the most serious forms of diving-related injuries which may leave residual brain damage. Cerebral DCI occurs in compressed air and in breath-hold divers, likewise. We conducted this study to investigate whether long-term breath-hold divers who may be exposed to repeated symptomatic and asymptomatic brain i...
متن کاملCentral chemoreflex sensitivity and sympathetic neural outflow in elite breath-hold divers.
Repeated hypoxemia in obstructive sleep apnea patients increases sympathetic activity, thereby promoting arterial hypertension. Elite breath-holding divers are exposed to similar apneic episodes and hypoxemia. We hypothesized that trained divers would have increased resting sympathetic activity and blood pressure, as well as an excessive sympathetic nervous system response to hypercapnia. We re...
متن کاملEffects of glossopharyngeal insufflation on cardiac function: an echocardiographic study in elite breath-hold divers.
Glossopharyngeal insufflation (GI), a technique used by breath-hold divers to increase lung volume and augment diving depth and duration, is associated with untoward hemodynamic consequences. To study the cardiac effects of GI, we performed transthoracic echocardiography, using the subcostal window, in five elite breath-hold divers at rest and during GI. During GI, heart rate increased in all d...
متن کاملCellular Glucose Uptake During Breath-Hold Diving in Experienced Male Breath-Hold Divers
BACKGROUND The physiological and pathophysiological mechanisms that govern diving, both self-contained underwater breathing apparatus (SCUBA) and breath-hold diving (BH-diving), are in large part well known, even if there are still many unknown aspects, in particular about cell metabolism during BH-diving. The scope of this study was to investigate changes in glycemia, insulinemia, and the cate...
متن کاملFeatures of glossopharyngeal breathing in breath-hold divers.
One technique employed by competitive breath-hold divers to increase diving depth is to hyperinflate the lungs with glossopharyngeal breathing (GPB). Our aim was to assess the relationship between measured volume and pressure changes due to GPB. Seven healthy male breath-hold divers, age 33 (8) [mean (SD)] years were recruited. Subjects performed baseline body plethysmography (TLC(PRE)). Plethy...
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ژورنال
عنوان ژورنال: European Journal of Applied Physiology
سال: 2019
ISSN: 1439-6319,1439-6327
DOI: 10.1007/s00421-019-04230-6