鼻腔通気性に及ぼす運動の影響に関する研究
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概要
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Congestion and decongestion of the nasal mucosa are induced by many factors, including the spontaneous nasal cycle, changes in the breathing pattern, posture, temperature, humidity, and exercise. Among these, exercise is considered to have an intensive effect on nasal patency. The effect of exercise on nasal patency was assessed in 70 children (aged six to 15 years) and 92 adults (aged 16 to 38 years). Five children were normal. 15 had allergic rhinitis, and had asthma. There were 26 normal adults, and 66 adults had allergic rhinitis. All patients performed a six-minute treadmill exercise test. Nasal resistances were measured at a pressure of 1.0cm water by anterior rhinomanometry before and immediately after exercise, as well as 5, 10, 15, 20, 25 and30 minutes after exercise. The FEV1 was also determined in children. Exercise-induced decreases in nasal resistance were observed in all subjects immediately after exercise; the decrease was marked in patients with allergic rhinitis. Nasal resistance values immediately after exercise were comparable in normal subjects and in those with allergic rhinitis. In patients with allergic rhinitis and asymmetrical skeletal abnormalities of the nose, exercise reduced the difference between the right and left nasal resistance values observed initially; however, a difference remained. In general, nasal resistance began to recover about five minutes after exercise. However, post-exercise nasal resistance values tended to be higher than pre-exercise levels, espe-cially in patients with allergic rhinitis. Extreme increases in nasal resistance, ie, "exercise induced nasal obstruction, " were observed in 15 of 66 (23%) adults and 6 of 15 (40%) children with allergic rhinitis and in 18 of 50 (36%) children with asthma. In children with asthma, there was no significant correlation between the occurrence of "exercise-induced nasal obstruction" and "exercise-induced asthma". None of the normal subjects experienced "exercise-induced nasal obstruction.""Exercise-induced nasal obstruction" is indicative in clarifying the congestion process of allergic nasal mucosa reacting to non-specific stimuli.
- 一般社団法人 日本耳鼻咽喉科学会の論文