外置鼻腔扩张器在佩戴防护牙套的受试者中不会影响跑步机表现。
External nasal dilator strips do not affect treadmill performance in subjects wearing mouthguards.
机构信息
School of Physical Therapy, The University of Western Ontario, London, Ontario, Canada.
出版信息
J Athl Train. 2000 Jan;35(1):60-4.
OBJECTIVE
To determine the effect of the Breathe Right (BR) external nasal dilator strip on treadmill exercise performed while wearing an upper maxillary mouthguard.
DESIGN AND SETTING
Two-way repeated-measures design with subjects acting as their own controls. Subjects performed 2 randomly assigned bouts of incremental treadmill exercise (with and without the BR strip) while wearing upper maxillary mouthguards.
SUBJECTS
Nineteen young, healthy, recreationally active men.
MEASUREMENTS
we assessed subjective nasal patency levels at rest. We also recorded heart rate, dyspnea rating, and treadmill speed at 2 submaximal exercise levels and at volitional fatigue.
RESULTS
Subjective nasal patency was significantly increased with the strip. Repeated-measures analyses of variance revealed a significant main effect of the BR strip on dyspnea ratings during exercise, but there was no effect of the strip on test duration, heart rate, or running speed during the tests.
CONCLUSIONS
Our results suggest that the BR nasal dilator strip does not affect treadmill exercise performance in subjects wearing mouthguards.
目的
确定使用呼吸畅通鼻外扩张器带（Breathe Right，BR）对外上颌护齿器佩戴者在跑步机上进行运动时的影响。
设计和环境
采用受试者自身对照的双向重复测量设计。受试者在佩戴上上颌护齿器的情况下，随机进行两次递增式跑步机运动（使用和不使用 BR 带）。
受试者
19 名年轻、健康、有规律运动的男性。
测量
我们在休息时评估主观鼻腔通畅程度。我们还记录了心率、呼吸困难评分以及在两个次最大运动水平和自愿疲劳时的跑步机速度。
结果
使用护齿器时，主观鼻腔通畅度明显增加。重复测量方差分析显示，BR 带对运动时呼吸困难评分有显著的主要影响，但对测试持续时间、心率或测试期间的跑步速度没有影响。
结论
我们的结果表明，BR 鼻扩张器带不会影响佩戴护齿器者在跑步机上的运动表现。
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