Values of pulmonary elastance (a) and pulmonary resistance (b). * indicates significant effect of LPS in increasing pulmonary resistance and elastance (P = 0.03). # indicates significant effect of exercise in attenuating the effect of LPS on pulmonary resistance and elastance (P = 0.03). Exe (exercise): instilled with saline and trained; LPS: instilled with LPS and untrained; Exe+LPS: instilled with LPS and trained. LPS, lipopolysaccharide.