Cardiovascular fitness is a type of physical fitness. It is when someone has physical exercise for a long time.^[1] It tests a person's ability breathe properly while their body is being affected by many limits. These include physiological, heart rate, stroke volume, cardiac output, and maximal oxygen consumption.

There are many benefits to cardiovascular fitness. It makes one's metabolism, muscle metabolism, haemoglobin, buffers in the bloodstream, venous return and stroke volume better. All of these have a direct positive effect on a person's physical limit and an indirect effect on their strength and flexibility.^[2]