The Irish team will be push to their physical and mental limits.

There's a simple physical limit to how long an individual can stand up to a 350-mile-an-hour air stream.

Prisoners worked the entire day and they were pushed to their physical limits with almost no food at all.

In the past twenty minutes she had forced her body all the way to its physical limits.

Not to mention that there are still physical limits in play here.

How often do people ever get to know their true physical and emotional limits?

"I'm at the very physical limit of what I can really paint," he said.

No one could ever maintain that the speed of sound was a true physical limit.

And the fundamental physical limit is the world of atoms.

There was no question that she had reached her mental and physical limits.