Department of Pediatrics, Faculty of Medicine, Federal University of Minas Gerais-Post Graduate Program in Health Sciences, Rua Sertões 100 - Ap 201 - Prado, Belo Horizonte, MG, CEP: 30411-164, Brasil.
Department of Dentistry, Pontifical Catholic University of Minas Gerais-Post Graduate Program in Orthodontics, Belo Horizonte, MG, Brasil.
Eur Arch Otorhinolaryngol. 2021 May;278(5):1307-1320. doi: 10.1007/s00405-020-06202-5. Epub 2020 Jul 18.
Numerous studies have shown that the external nasal dilator (END) increases the cross sectional area of the nasal valve, thereby reducing nasal resistance, transnasal inspiratory pressure, stabilizing the lateral nasal vestibule, and preventing its collapse during final inhalation.
Our objective was to carry out a systematic review of the literature and meta-analysis on the effects of the END during physical exercise.
After selecting articles in the PubMed, Cochrane Library and EMBASE databases, 624 studies were identified. However, after applying the inclusion and exclusion criteria, 19 articles were considered eligible for review.
Those studies included in the meta-analysis, the maximal oxygen uptake (VOmax.) outcome was assessed in 168 participants in which no statistically significant difference was found, MD (95% CI) = 0.86 [- 0.43, 2.15], p = 0.19, and I = 0%. The heart rate (HR) outcome was assessed in 138 participants in which no statistically significant difference was found, MD (95% CI) = 0.02 [- 3.19, 3.22], p = 0.99, and I = 0%. The rating of perceived exertion (RPE) outcome was assessed in 92 participants in which no statistically significant difference was found, MD (95% CI) = - 0.12 [- 0.52, 0.28], p = 0.56, and I = 27%.
The external nasal dilator strip showed no improvement in VOmax., HR and RPE outcomes in healthy individuals during exercise.
许多研究表明，外部鼻扩张器（END）增加了鼻阀的横截面积，从而降低了鼻阻力、经鼻吸气压力、稳定了外侧鼻前庭，并防止其在最后吸气时塌陷。
我们的目的是对 END 在体育锻炼中的作用进行系统评价和荟萃分析。
在选择了 PubMed、Cochrane 图书馆和 EMBASE 数据库中的文章后，确定了 624 项研究。然而，在应用纳入和排除标准后，有 19 项研究被认为符合审查条件。
纳入荟萃分析的研究中，168 名参与者评估了最大摄氧量（VOmax.）的结果，未发现统计学差异，MD（95%CI）=0.86[-0.43, 2.15]，p=0.19，I=0%。138 名参与者评估了心率（HR）的结果，未发现统计学差异，MD（95%CI）=0.02[-3.19, 3.22]，p=0.99，I=0%。92 名参与者评估了主观用力感觉（RPE）的结果，未发现统计学差异，MD（95%CI）=-0.12[-0.52, 0.28]，p=0.56，I=27%。
在健康个体运动期间，外部鼻扩张器带对 VOmax.、HR 和 RPE 结果没有改善作用。
