Corrigendum
for Troyer and Leduc, J Appl Physiol 102 (6) 2332-2337.
J Appl Physiol 103: 1110, 2007;
doi:10.1152/japplphysiol.zdg-7504-corr.2007
8750-7587/07 $8.00
CORRIGENDUM
Corrigendum
Volume 102, June 2007
Pages 2332–2337:
De Troyer A, Leduc D. Role of pleural pressure in the coupling between the intercostal muscles and the ribs. J Appl Physiol 102: 2332–2336, 2007. First published February 22, 2007; doi:10.1152/japplphysiol.01403.2006. Two errors were present in the symbols used in the first full paragraph of the right column on page 2336. This paragraph should read as follows: "From Eq. 5, it can be seen that VR (i.e., the volume equivalent of the cranial rib displacement) is directly related to the sum of the force generated by the intercostal muscles and pleural pressure, and inversely related to the elastance of the rib cage. Thus, during isolated contraction of the inspiratory intercostals (PA = 0) in the presence of pneumothorax (Ppl = 0), VR = PR/KR. If the rib cage is intact, however, the same PR is effective in causing a fall in Ppl, so that VR is smaller. In addition VR is further decreased if 1) the rib cage is stiffer, leading to an increase in KR; or 2) the same PR takes place with a simultaneous contraction of the diaphragm, such that PA is no longer zero and Ppl is more negative (Eq. 6). This model analysis, combined with the results of experiment 1, thus confirms our previous speculation (10) that the decrease in cranial rib displacement observed during combined parasternal intercostal-diaphragm contraction is partly due to the increase in 
Ppl."
Copyright © 2007 by the American Physiological Society.
