My questions:
- If an athlete has a very low resting heart rate (45 bpm and lower) does that mean that it would be `normal' for the heart muscle to contract harder with each beat?
- If that is the case would it follow that the systolic pressure in an athlete is typically higher (greater than 120 but less than 140)?
- If the diastolic (bottom number) is less than 80 would that support a conclusion that the higher systolic pressure (e.g., 140/68 with a heart rate of 45 bpm) among athletes is `within normal limits'?