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. Author manuscript; available in PMC: 2011 Jul 20.

Published in final edited form as: J Biomech. 2010 Apr 22;43(10):1864–1869. doi: 10.1016/j.jbiomech.2010.03.033

A) Circumferential incremental elastic modulus (E_inc) and B) Local area compliance (C_A) from 10 – 30 mmHg for CTL and HPH extralobar PAs. □ (CTL-Normal), (CTL-Constricted), (CTL-Dilated), ■ (HPH-Normal), (HPH-Constricted), (HPH-Dilated). * P<0.05 vs. CTL condition; *** P<0.0005 vs. CTL condition; † P<0.05 vs. Normal state; ††† P<0.0005 vs. Normal state. SMC constriction decreased E_inc, but also decreased diameter and increased wall thickness, such that C_A changes were only significant in HPH PAs.

Inline graphic — A) Circumferential incremental elastic modulus (E_inc) and B) Local area compliance (C_A) from 10 – 30 mmHg for CTL and HPH extralobar PAs. □ (CTL-Normal), (CTL-Constricted), (CTL-Dilated), ■ (HPH-Normal), (HPH-Constricted), (HPH-Dilated). * P<0.05 vs. CTL condition; *** P<0.0005 vs. CTL condition; † P<0.05 vs. Normal state; ††† P<0.0005 vs. Normal state. SMC constriction decreased E_inc, but also decreased diameter and increased wall thickness, such that C_A changes were only significant in HPH PAs.