AnaBios Corporation 1 article published in JoVE Medicine Measurement of Heart Contractility in Isolated Adult Human Primary Cardiomyocytes Najah Abi Gerges1, Alexa Stafford1, Ky Truong1, Yannick Miron1, Bryce Winrow1, Brian Krause1, Guy Page1, Andre Ghetti1 1AnaBios Corporation This protocol describes how to measure contractility in adult human primary cardiomyocytes from donor hearts with the MyoBLAZER system, a reliable platform for assessing drug-induced changes in contractility during preclinical development.