This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
In isometric exercise all are increased except: 
Select and explain. 
A. Hea rate, B. Cardiac output, C. Mean aerial pressure, D. Systemic vascular resistance
D: Systemic vascular resistance
Answer: D: Systemic vascular resistance 
Explanation: D i.e. Systemic vascular resistance