<P> Example for someone with a HR of 180 and a HR of 70 (and therefore a HR of 110): </P> <Dl> <Dd> 50% Intensity: ((180 − 70) × 0.50) + 70 = 125 bpm </Dd> <Dd> 85% Intensity: ((180 − 70) × 0.85) + 70 = 163 bpm </Dd> </Dl> <Dd> 50% Intensity: ((180 − 70) × 0.50) + 70 = 125 bpm </Dd> <Dd> 85% Intensity: ((180 − 70) × 0.85) + 70 = 163 bpm </Dd>

Relaxation of the heart is best defined by which of the following terms