Padrão respiratório e movimento toracoabdominal de crianças respiradoras orais
| Autor: | Raquel Rodrigues Britto, Verônica Franco Parreira, Hmg Becker, Tcs Brant, Marisa Cotta Mancini, Afc Reis |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
medicine.diagnostic_test
business.industry Rehabilitation Physical Therapy Sports Therapy and Rehabilitation Pulse oximetry Breathing pattern Sample size determination Anesthesia Statistical significance measurement_unit.measuring_instrument Mann–Whitney U test Medicine Orthopedics and Sports Medicine Respiratory system business Peak flow meter Tidal volume measurement_unit |
| Zdroj: | Brazilian Journal of Physical Therapy. 12:495-501 |
| ISSN: | 1413-3555 |
| DOI: | 10.1590/s1413-35552008005000010 |
| Popis: | OBJECTIVE: To characterize the breathing pattern and thoracoabdominal motion of mouth-breathing children aged between eight and ten years and to compare these characteristics with those of nose-breathing children of the same ages. METHODS: This observational study was carried out in a university laboratory. The sample size of 50 subjects was estimated based on the results of a pilot study with ten children in each group (total of 20 children) and considering a significance level of 0.05 and statistical power of 0.80. Twenty-six mouth-breathing and 25 nose-breathing children participated. Calibrated respiratory inductive plethysmography was used to analyze the following variables, among others: respiratory frequency (f), rib cage contribution towards tidal volume (%RC/Vt), phase angle (PhAng) and the ratio between time taken to reach peak inspiratory flow and total inspiratory time (PifT/Ti). Peripheral oxygen saturation of hemoglobin (SpO2) was measured using pulse oximetry. Statistical analysis was performed using the Student's t test for independent groups or the Mann-Whitney U test, according to the sample distribution of the variables. RESULTS: A total of 4,816 respiratory cycles were analyzed: 2,455 from mouth-breathers and 2,361 from nose-breathers, with a mean of 94 cycles per child. No statistically significant differences were observed between the groups, for the variables studied (f=20.00±2.68 versus 20.73±2.58, p=0.169; %RC/Vt=39.30±11.86 versus 38.36±10.93, p=0.769; PhAng=14.53±7.97 versus 13.31±7.74, p=0.583; PifT/Ti=57.40±7.16 versus 58.35±5.99, p=0.610; SpO2=96.42±1.52% versus 96.88± 1.01%, p=0.208; respectively). CONCLUSIONS: These results suggest that mouth-breathing children show breathing patterns and thoracoabdominal motion that are similar to those of nose-breathing children in the same age group. |
| Databáze: | OpenAIRE |
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