Garcia de la Rubia S, Pajarón-Fernandez M J, Sanchez-Solís M, Martinez-Gonzalez Moro I, Perez-Flores D, Pajarón-Ahumada M
Health Center, La Alberca, Murcia, Spain.
Ann Allergy Asthma Immunol. 1998 Mar;80(3):232-6. doi: 10.1016/s1081-1206(10)62963-8.
Exercise is one of the most common precipitating factors of acute asthmatic crises in childhood. Although it has been described as more frequent among children, this is probably due to their more abundant physical activity. Nevertheless, it also occurs at other ages.
The aim of this study is to assess possible differences in postexercise spirometry after treadmill and free running provocation tests.
We compared the results obtained in a treadmill test performed by 30 asthmatic children and 30 healthy children with the results obtained with these same children in a free running test, keeping similar environmental conditions (temperature and humidity), exercise intensity (assessed by heart rate), and airway status at the time of the test.
Seventy-three percent of the patients had positive treadmill tests and 63.3% had positive free running tests. For the spirometric parameters studied, there were no significant differences in the percent decrease in postexercise performance after either of the provocation tests. For FEV1, which is the most sensitive diagnostic parameter, the sensitivity was 53.3% in treadmill running and 56.7% in free running, with a specificity of 100% in both tests.
If environmental conditions, exercise intensity, and airway status are controlled at the time of the test, treadmill and free running can be used indistinctly as asthma-inducing exercises.
运动是儿童急性哮喘发作最常见的诱发因素之一。尽管运动诱发哮喘在儿童中更为常见，但这可能是由于他们的体力活动更为丰富。然而，在其他年龄段也会发生。
本研究旨在评估跑步机激发试验和自由跑步激发试验后运动后肺功能测定的可能差异。
我们将30名哮喘儿童和30名健康儿童在跑步机试验中的结果与这些儿童在自由跑步试验中的结果进行了比较，保持相似的环境条件（温度和湿度）、运动强度（通过心率评估）以及试验时的气道状态。
73%的患者跑步机试验呈阳性，63.3%的患者自由跑步试验呈阳性。对于所研究的肺功能参数，两种激发试验后运动后表现的下降百分比没有显著差异。对于最敏感的诊断参数FEV1，跑步机跑步时的敏感性为53.3%，自由跑步时为56.7%，两种试验的特异性均为100%。
如果在试验时控制环境条件、运动强度和气道状态，跑步机和自由跑步均可作为诱发哮喘的运动方式，无明显区别。
