But it can develop after any exertion that is more intense or prolonged than is normal for you.
Wouldn't they and their hearts be accustomed to the exertion?
'Anything that you assess on a "Relative Perceived Exertion" scale, with one being easiest and ten being harmful,' says Jowett.
"If you want to define sport as something that takes a lot of physical exertion, then it's hard to argue that videogames should be a sport, but at the same time, when I'm looking at things that are already in the Olympics, I start questioning the definition.
You are forced on exertion.
Avoid strenuous physical exertion.
If he discovered in the course of a trial that he was on the wrong side, he lost all interest, and ceased to make any exertion.
Oscar Wilde (1854 - 1900), The Critic as Artist, 1891 He was a genius - that is to say, a man who does superlatively and without obvious effort something that most people cannot do by the uttermost exertion of their abilities.
When evening was come and all the birds were feeling very tired after the exertion of so much flying, they went to bed with their wives and children.
More than an hour elapsed before her two companions could obtain from the nearest house ropes and poles to assist in raising them; and it was with much exertion that they at last succeeded in raising from the crevasse what appeared to be two dead bodies.
When the sun was near setting, and the evening's twilight about to commence, the approaching transformation aroused her to fresh exertion.
