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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
All of the following factors normally increase the length of the ventricular cardiac muscle fibers, except:
assistant
The correct answer is  When the person stands from a lying position, there is pooling of blood in the legs. This causes decrease in venous return and decrease in end diastolic volume (and length of ventricular cardiac muscle fibers).