Not Fear of drowning and the terror of failure doubled her strength.

Three percent were "high responders," some of whom doubled their strength.

With that thought, Merwood doubled his already forceful strength.

The Legionnaire stopped for a split second; then agony and shock seemed to double his strength.

"I couldn't be saying, not for certain, but it's surprised I'll be if they haven't doubled their strength."

The thought of freedom was enough to double my strength.

When worn, the belt is described as doubling Thor's already prodigious strength.

Top participants consistently defeat opponents who are 100 pounds heavier and double their strength.

I've seen them temporarily double their strength, or stop a wound from bleeding, or go days without sleep.

In short months he might double his strength.