1常见诱因训练性晕厥是由于脑血流量暂时降低,或血液中化学物质变化所致的短暂意识紊乱或意识丧失。队列训练中出现晕厥的主要原因:(1)血管减压性晕厥,也称单纯性晕厥。是由于情绪不稳和神经紧张引起外周毛细血管扩张,造成大脑血液灌流量减少而出现晕厥。(2)重力性休克。训练中 1 common causes of training fainting is due to a temporary decrease in cerebral blood flow, or changes in the blood caused by chemical substances transient disturbance of consciousness or loss of consciousness. Cohesion training in the main reasons for syncope: (1) vascular decompression syncope, also known as simple syncope. Is due to emotional instability and nervous tension caused by peripheral telangiectasia, resulting in decreased cerebral blood perfusion syncope. (2) Gravity shock. Training