游泳训练对支气管哮喘患儿有氧能力及运动诱发性支气管收缩的影响。
Effects of swimming training on aerobic capacity and exercise induced bronchoconstriction in children with bronchial asthma.
作者信息
Matsumoto I, Araki H, Tsuda K, Odajima H, Nishima S, Higaki Y, Tanaka H, Tanaka M, Shindo M
机构信息
Division of Pediatrics, National Minami Fukuoka Chest Hospital, Japan.
出版信息
Thorax. 1999 Mar;54(3):196-201. doi: 10.1136/thx.54.3.196.
BACKGROUND
A study was undertaken to determine whether swimming training improved aerobic capacity, exercise induced bronchoconstriction (EIB), and bronchial responsiveness to inhaled histamine in children with asthma.
METHODS
Eight children with mild or moderate asthma participated in swimming training every day for six weeks. The intensity of training was individually determined and set at 125% of the child's lactate threshold (LT), measured using a swimming ergometer. Another group of eight asthmatic children served as control subjects. Aerobic capacity and the degree of EIB were assessed by both cycle ergometer and swimming ergometer before and after swimming training.
RESULTS
The mean (SD) aerobic capacity at LT increased by 0.26 (0.11) kp after training when assessed with the swimming ergometer and by 10.6 (4.5) W when assessed with the cycle ergometer, and these changes were significantly different from the control group. The mean (SD) maximum % fall in forced expiratory volume in one second (FEV1) to an exercise challenge (cycle ergometer) set at 175% of LT decreased from 38.7 (15.4)% before training to 17.9 (17.6)% after training, but with no significant difference from the control group. There was, however, no difference in histamine responsiveness when compared before and after the training period.
CONCLUSION
A six week swimming training programme has a beneficial effect on aerobic capacity but not on histamine responsiveness in children with asthma.
背景
开展了一项研究，以确定游泳训练是否能改善哮喘患儿的有氧能力、运动诱发的支气管收缩（EIB）以及支气管对吸入组胺的反应性。
方法
八名轻度或中度哮喘患儿每天参加游泳训练，为期六周。训练强度根据个体情况确定，设定为使用游泳测力计测得的患儿乳酸阈（LT）的125%。另一组八名哮喘患儿作为对照对象。在游泳训练前后，通过自行车测力计和游泳测力计评估有氧能力和EIB程度。
结果
使用游泳测力计评估时，训练后LT时的平均（标准差）有氧能力增加了0.26（0.11）kp，使用自行车测力计评估时增加了10.6（4.5）W，这些变化与对照组有显著差异。在设定为LT的175%的运动挑战（自行车测力计）中，一秒用力呼气量（FEV1）的平均（标准差）最大下降百分比从训练前的38.7（15.4）%降至训练后的17.9（17.6）%，但与对照组无显著差异。然而，训练前后组胺反应性没有差异。
结论
为期六周的游泳训练计划对哮喘患儿的有氧能力有有益影响，但对组胺反应性没有影响。
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