Tsanakas J N, Milner R D, Bannister O M, Boon A W
Department of Paediatrics, Sheffield University.
Arch Dis Child. 1988 Mar;63(3):261-5. doi: 10.1136/adc.63.3.261.
The free running asthma screening test (FRAST) was evaluated in 503 Sheffield schoolchildren aged 6 to 12 years and compared with responses to an asthma questionnaire. The FRAST measured peak expiratory flow rate (PEFR) before and at 1, 5, and 10 minutes after maximum voluntary running for at least 5 minutes in a standardised environment. A fall in PEFR of greater than 15% in at least two postexercise readings was defined as abnormal. Six (1%) children did not do the test and 69 (14%) failed to complete it. Of these, 14 were known asthmatics, 18 were not testable, and 37 were normal when retested. There were 14 abnormal FRAST results among 412 'normal' children who completed the test and 10 of these were subsequently diagnosed asthmatic. None of 14 children with an abnormal FRAST result had been identified as wheezy, chesty, or asthmatic in the questionnaire. In this sample there was, on average, one child in every school class with unrecognised exercise induced bronchospasm. The FRAST is an acceptable, feasible, and cost effective way of identifying such potential asthmatics at school.
对503名年龄在6至12岁的谢菲尔德学童进行了自由运动性哮喘筛查测试（FRAST），并将结果与哮喘问卷的回答进行了比较。FRAST测量了在标准化环境中进行至少5分钟最大自主跑步之前以及跑步后1、5和10分钟时的呼气峰值流速（PEFR）。至少两次运动后读数中PEFR下降超过15%被定义为异常。6名（1%）儿童未进行测试，69名（14%）未能完成测试。其中，14名是已知哮喘患者，18名无法进行测试，37名再次测试时为正常。在完成测试的412名“正常”儿童中有14例FRAST结果异常，其中10例随后被诊断为哮喘。在问卷中，14名FRAST结果异常的儿童均未被认定为气喘、胸部不适或患有哮喘。在这个样本中，平均每个班级都有一名未被识别出的运动诱发性支气管痉挛患儿。FRAST是在学校识别此类潜在哮喘患者的一种可接受、可行且具有成本效益的方法。
