大多数哮喘患者易于发生过度呼吸或运动诱导的支气管收缩,尤其是儿童。而水上运动引起的支气管收缩效应似乎比陆上运动引起的小。根据呼吸热量、水份丢失理论(respiratory heat and/or waterloss theory),水上运动时吸入高湿度的空气,可以成为减轻游泳诱导的支气管收缩反应的保护性因子;此外,还有其它因素,如:浸浴过程中对胸壁的较高静水压、典型的继续呼吸节奏、(臂肌等)小肌 Over-breathing or exercise-induced bronchoconstriction is common in most asthmatics, especially in children. Bronchoconstriction induced by water sports seems to be less than land-based. According to the theory of respiration heat and / or water loss, inhalation of high humidity air during water sports can be a protective factor in reducing swimming-induced bronchoconstriction; in addition there are other factors such as: High hydrostatic pressure on the chest wall during bathing, typical of continuous breathing rhythms, (brachialis, etc.)