Made available in DSpace on 2014-12-17T14:10:24Z (GMT). No. of bitstreams: 1 ThiagoCVN_DISSERT.pdf: 3967132 bytes, checksum: 808ab0fb6d42acf030afd829319cfe49 (MD5) Previous issue date: 2012-03-30 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The human respiratory system was so designed that would allow efficient ventilation, regardless of variations in the external environment that may hinder the act of breathing, such an act involves dozens of variables, among them we find the respiratory depression, which is nothing more than respiratory muscle strength. The pressures are widely used in several cases: Neuro-muscular; evolution of pulmonary dysfunction and a predictor for discontinuation of mechanical ventilation. Therefore it was proposed to carry out evaluations of these respiratory pressures for children and adolescents aged 10 to 16 years and propose a predictive equation that involves the anthropometric variables age (A, years), body mass (BM, kilograms) and height (H, meters) with maximal respiratory pressures (maximum inspiratory and expiratory pressure). Evaluations were performed in this age group of students in public and private schools of the Grande Natal , measurements were performed using the analogue manometer, were children and adolescents and their parents gave informed consent. 517 samples were taken, and 250 for males (M), 255 for females (F) and 12 were excluded according to our exclusion criteria. The sample was subdivided into three age groups (10-11, 12-13 and 14 to 16 years old). It was found through the student s t test (p &#8804; 0.05) for all variables studied, children and male adolescents had higher means than females, except for the MC. For the correlation between the variables found significant correlation (p <0.05) among all the variables when analyzed as pairs except between MIP and height for females. The development of predictive equations (for p &#8804; 0.05) based on three types of strategies adopted were restricted to two association between anthropometric variables isolated, resulting in: for males: MIP = -32.29 + (-2.11*A) + (-0.52*BM), MIP = 9.99 + (-0.36*BM) + (-49.40*H); MEP = 18.54 + 3.53*A + 0, 42*BM, MEP = -33.37 + 2.78*A + 52.18* H, MEP = -17.39 + 0.33*BM + 55.04*H; and, for females we find: MEP = 24.32 + 2.59 * A + 0.24*BM / O sistema respirat?rio do ser humano foi concebido de maneira que possibilitasse uma ventila??o eficiente, independente das varia??es do meio externo que possam vir a dificultar o ato da respira??o, tal ato envolve dezenas de vari?veis, dentre elas encontramos a press?o respirat?ria, que nada mais ? do que a for?a muscular respirat?ria. As press?es s?o amplamente utilizadas em diversos casos: Doen?as neuro-musculares; evolu??o de disfun??es pulmonares e par?metro preditivo para a descontinuidade da ventila??o mec?nica. Assim sendo foi proposto a realiza??o de avalia??es dessas press?es respirat?rias para as crian?as e adolescentes de 10 aos 16 anos e propor uma equa??o preditiva que envolvesse as vari?veis antropom?tricas idade (ID, anos); massa corporal (MC, Kilogramas) e estatura (E, metros) com as press?es respirat?rias m?ximas (press?o inspirat?ria e expirat?ria m?xima). Foram realizadas as avalia??es nessa faixa et?ria em estudantes de escolas p?blicas e privadas da grande natal, as mensura??es foram realizadas atrav?s da manovacuometria anal?gica, as crian?as e adolescentes foram informadas e seus respons?veis deram o consentimento. Foram realizadas 517 coletas, sendo 250 para o g?nero masculino (M), 255 para o g?nero feminino (F) e 12 foram exclu?dos de acordo com nossos crit?rios de exclus?o. A amostra foi subdividida em 3 faixas et?rias (10 a 11; 12 a 13 e 14 a 16 anos de idade). Constatou-se atrav?s do teste t de student (p&#8804;0,05) que para todas as vari?veis pesquisadas, as crian?as e adolescentes do g?nero masculino apresentaram m?dias superiores aos do g?nero feminino, exceto para a MC. Para a correla??o entre as vari?veis encontramos significativa correla??o (p<0,05) entre todos as vari?veis quando analisadas par a par exceto entre Estatura e a PIm?x para o g?nero feminino. A elabora??o das equa??es preditivas (para p&#8804;0,05) baseadas nos 3 tipos de estrat?gias adotadas ficaram restritas a associa??o entre duas vari?veis antropom?tricas isoladas, resultando em: para o g?nero masculino: PIm?x= -32,29 + (-2,11*ID) + (-0,52*MC); PIm?x= 9,99 + (-0,36*MC) + (-49,40*E); PEm?x= 18,54 + 3,53*ID + 0,42*MC; PEm?x= -33,37 + 2,78*ID + 52,18*E e PEm?x= -17,39 + 0,33*MC + 55,04*E; para o g?nero feminino encontramos: PEm?x= 24,32 + 2,59*ID + 0,24*MC