For example, healthy young adults and well-trained athletes often have resting heart rates of less than 60 beats per minute.

Radiators are supposed to overheat, not well-trained athletes.

A well-trained athlete utilizes oxygen very efficiently, so his muscles don't demand as much oxygen-containing blood per minute.

He didn't know if the changes were new or whether this was just a well-trained athlete.

Creatine may be helpful for well-trained athletes to increase exercise performance and strength in concordance with their dietary regimen.

There is also some evidence that HMB might be more effective in people who are just beginning to train than in well-trained athletes.

For already well-trained athletes, improvements in performance become difficult to attain; increases in training volume may yield no improvements.

But he was surprised to find some well-trained athletes not finishing marathons and complaining that their legs felt like tree stumps.

His resting heart rate is 47 beats a minute, normal for a well-trained athlete, and his blood pressure is normal, 110 over 64.

He must have had the stamina of primitive men combined with the fitness of a well-trained athlete.