Results: Mean diaphragm EMG and esophageal pressure over the Taichi ... diaphragmatic excursion was 6.23±0.74 cm in control group and 4.64±1.34 cm in.
MONDAY, SEPTEMBER 9TH 2013 P1920 Comparison of respiratory muscle recruitments between maximal voluntary contraction and strenuous exercise Pauliane Santana, Leticia Cardenas, Renata Pletsch, Jeferson Ferreira, Luiz Orlandim, Albuquerque Andre, Carvalho Carlos, Patricia Trevizan, Renan Maloni, Pedro Caruso. Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil; Disciplina De Pneumologia, Heart Institute ( Incor ), Sao Paulo, Brazil Rationale: the measurement of muscle recruitment induced by maximal voluntary contraction (MVC) is indispensable to normalize electromyographic(EMG) signals and to evaluate muscle recruitment during the exercise or disease. However for the respiratory muscles the MVC maneuvers are not established. Objective: to compare the respiratory muscle recruitment induced by MVC maneuvers with the recruitment induced by strenuous exercise. Method: In 14 healthy volunteers, first we evaluated the superficial EMG during a MVC of the scalene (deep inspiration concomitant with side bending of the neck against a resistance), sternomastoid (head rotation against a resistance), paraesternal intercostal (deep inspiration) and external oblique (Valsalva maneuver while rising from a chair against a resistance). Then we evaluated the same muscles during an incremental cycling exercise until exhaustion. Results: For the scalene and sternomastoid, the EMG signal during MVC was significantly higher than during exercise (p
