The increase in immunity from exercise is based on __________________________.
A)previous health history
C)type of infection exposure
D)number of white blood cells
Phyllis is a marathon runner.By training intensely and running over 100 km (60 miles)a week,she is increasing her risk of _________________________________.
C)pelvic inflammatory disease
D)urinary tract infections
Vigorous exercise has been shown to burn off chemical by-products released by the ________ response.
Rodney competes in sprinting at the elite level.In training,he uses a type of exercises that contract his muscles in order to increase power.What is the name associated with this type of exercise?