Morton A R, Lawrence S R, Fitch K D, Hahn A G
Ann Allergy. 1983 Nov;51(5):530-4.
With running speed held constant, exercise durations of between two and 32 minutes all provoke significant asthma. However, the severity and length of the bronchoconstriction is less following exercise of two minutes duration. Exercise durations ranging from eight to 32 minutes show no difference in either incidence or severity of EIA.
在跑步速度保持恒定的情况下,持续两到32分钟的运动都会引发明显的哮喘。然而,持续两分钟的运动后支气管收缩的严重程度和持续时间较短。持续八到32分钟的运动在运动诱发的支气管痉挛的发生率或严重程度上没有差异。