Skip to main content
. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: J Neurol. 2019 Jul 26;266(11):2752–2763. doi: 10.1007/s00415-019-09481-z

Fig 2. Lung area increase, diaphragm descent, and chest expansion during a maximal inspiration.

Fig 2

a) Unaffected controls had larger sagittal plane lung areas at functional residual capacity (FRC) and at maximal inspiration (max) than participants with DMD, and they also had larger increases in lung area during maximal inspirations (p=0.003). b) Additionally, controls (gray circles) had larger diaphragm descent (p=0.015) and anterior-posterior (AP) chest expansion (p=0.015) compared to individuals with DMD (ambulatory = closed black circles, nonambulatory = open black circles), but there was no difference in left-right (LR) chest expansion. c) When diaphragm descent was normalized to height, differences were no longer significant between groups. d) However, the subgroup of participants with DMD with percent predicted MIP (%pMIP) ≤60 had significantly reduced diaphragm descent normalized to height and e) AP chest expansion compared to controls. *Indicates p<0.05