exercise ***
exercising
physical exercise
physical exertion
workout **

Say, for example, there was significant physical exertion immediately before death.

That much physical exertion would have dropped him with a heart attack.

But my heart was still pounding, and from more than physical exertion.

It does not follow a pattern and can happen without physical exertion.

There was high physical exertion on workers, especially during harvest season.

But Dad knew the toll of all this physical exertion.

Surprisingly, he is not at all tired despite his recent physical exertion.

For those less used to physical exertion, there is a spectacular alternative.

"You're not used to this precise type of physical exertion."

Her body ached, as if she had been through some great physical exertion.