systolic Blood Pressure increases linearly with exercise

A normal systolic blood pressure at maximal exercise is 200 mmHg

Blood pressure

Diastolic blood pressure remains the same or drops slightly with exercise

Systolic: Contraction phase
Diastolic: Resting phase

Exhaling forcefully while closing the glottis is known as the Valsalva maneuver. This greatly increases systolic blood pressure

The mechanism by which the heart generates a stronger contraction when the ventricle is stretched more during diastole is called the Frank-starling mechanism