In your job as a fitness instructor, you are told to select test items that will measure cardiorespiratory fitness, muscular strength and endurance, flexibility and body fat percentage. what criteria should you consider in making your selection? why?

The amount of oxygen that is actually used by the body during the rest or a hand workout is determined by the heart rate, the stroke volume, and the amount of a. blood circulating in the vascular system b. oxygen removed from the vascular system c. oxygen provided to the vascular system d. blood that individual has in the body e. hemoglobin in the red blood cells