ty -jour t1-运动哮喘受试者JF的呼吸频率自愿下降 - 欧洲呼吸杂志J Y1 - 1996/11/01 UR -http：//www.qdcxjkg.com/content/9/11/11/2273.Abstract N2-越来越建议在年轻的哮喘患者中推荐运动康复计划合并有关呼吸模式的说明。在这项研究中，我们检查了自愿降低呼吸频率对氧气和二氧化碳的通风等效物的影响（微小的通气（V'E）/氧气消耗（V'O2）和V'E/CO2生产（V'ECO2）（V'CO2），分别），无创确定的生理死亡空间/潮汐体积（VD/VT）和呼吸困难。将15名年轻哮喘患者分配给两组：低频呼吸（LFB）和对照。他们首先以150 BEATS x min（-1）的心脏频率进行了运动测试。他们在此级别接受了九次课程的培训。在运动过程中指示LFB受试者将呼吸频率降低40％。控制对象没有收到任何指示。然后在相同的条件下进行第二次测试。 LFB subjects decreased V'E/V'O2, V'E/V'CO2 and VD/VT by 22, 19 and 12%, respectively. Arterial oxygen saturation (Sa,O2) fell to 89+/-4% and end-tidal carbon dioxide tension (PET,CO2) rose to 6.5+/-0.7 kPa (49+/-5 mmHg). In controls, these variables were identical in the two tests. Dyspnoea was lower in the second test in all subjects. In conclusion, breathing pattern may be profoundly altered during exercise without concomitant increase in dyspnoea. However, directing breathing patterns for exercise rehabilitation requires an individual assessment of the desired pattern in order to prevent hypercapnia or hypoxia. ER -