Speed of spleen volume changes evoked by serial apneas
Speed of spleen volume changes evoked by serial apneas
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DOI：
10.1007/s00421-004-1224-0
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发表时间：
2005-01-01
影响因子：
3
通讯作者：
Reimers, J
中科院分区：
文献类型：
--
作者：
Schagatay, E;Haughey, H;Reimers, J
潜水哺乳动物可以通过脾脏收缩将额外的红细胞注入循环中来延长潜水持续时间。这种机制对于人类呼吸暂停持续时间也可能很重要。我们研究了连续呼吸暂停引起的脾脏体积变化的速度和幅度，以及血细胞比容 (Hct) 和血红蛋白 (Hb) 浓度、潜水反应和呼吸暂停持续时间的相关变化。间隔 2 分钟休息的 3 次最大呼吸暂停引起所有 10 名受试者的脾收缩，平均 49 (27) ml（18%；P
Diving mammals may enhance dive duration by injecting extra erythrocytes into the circulation by spleen contraction. This mechanism may also be important for apneic duration in humans. We studied the speed and magnitude of spleen volume changes evoked by serial apneas, and the associated changes in hematocrit (Hct) and hemoglobin (Hb) concentration, diving response and apneic duration. Three maximal apneas separated by 2 min rest elicited spleen contraction in all ten subjects, by a mean of 49 (27) ml (18%; P