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. Author manuscript; available in PMC: 2019 May 10.
Published in final edited form as: Funct Imaging Model Heart. 2017 May 23;10263:493–501. doi: 10.1007/978-3-319-59448-4_47

Fig. 5.

Fig. 5.

Active contraction TCa inversely determined with the observed PV loop (D = 2/K). Active contraction increases up to a maximum at peak-systole, and relaxes over diastole. Incompressible myocardium requires substantially higher active contractions to achieve similar cavity volumes.