TREINAMENTO MUSCULAR INSPIRATÓRIO EM CRIANÇAS ASMÁTICAS: efeito na força muscular respiratória e pico de fluxo expiratório.

Abstract

The respiratory muscles as the skeletal muscles, are sensitive to an appropriate program of physical training and they can be training with the goal of improve their force and endurance. The aim of the present study is to value the effects of the inspiratory muscles training (IMT) on muscle force and on lung function in asthmatic infants. It is an analytic, experimental and random study. It were valued 50 infants by random choose, in two groups: Experimental Group (EG) composed of 25 infants who did IMT in a program of help an education on asthma and a Control Group (CG), composed of 25 infants who were submit only to monthly medical consults and education on asthma. The IMT was implement by using the Threshold IMT with load of 40% of Inspire Maximum Pressure. The analysis of the results was made by using the Student t Test paired and non-paired and the Qui-Square Test with p ≤ 0,05. At the comparative analysis the variables muscle force and peak flow before and after intervention, was observed an increased of the Inspire Maximum Pressure on EG from -48,32 ± 5,706 to 109,92 ± 18,041 (p≤0,0001); Expire Maximum Pressure from 50,64 ± 6,55 to 82,04 ± 17,006 (p≤0,0001) and Peak flow from 173,6 ± 50,817 to 312 ± 54,848 (p≤0,0001). There was no significant increased at the variables Inspire Maximum Pressure and Expire Maximum Pressure on CG. There was a significant increased of the Peak flow at the CG from 188 ± 43,97 to 208,80 ± 44,283 (p≤0,0001). There was a significant increased at the variables gravity of the nocturnes symptoms, frequency of looking for emergency room and hospitalizations at the two groups (p≤0,0001). In the variable gravity of attack frequency only the EG had significant increased (p≤0,0001). Believe that the RMT can increase the mechanical efficiency at the respiratory muscles and at the lung function in asthmatic infants.