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Rate of pressure change and hyperbaric bradycardia in the mouse sinus node
cardiac animal mice sinus node
2009/7/17
Sinus node preparations from mice were hydraulically compressed at 10, 100, and 500 atm x min-1 in Tyrode's solution at 27 degrees C. At the highest compression rate, both a delay and a more pronounce...
Extremes in human breath hold, facial immersion bradycardia
human breath hold facial immersion bradycardia cardiac respiratory Immersion
2009/7/15
Although the average human response to apneic facial immersion in ice water is a reduction in heart rate from 70 to 45 beats/min, a small proportion of healthy subjects develop diving bradycardia to l...
The hypothesis that the diving response, recorded as diving bradycardia during submersed breath holding in man, would enhance his breath-holding time was tested. Five certified scuba divers served as ...