In this video, the firm shows athletes doing balance and strength tests without the bands and then performing better with.

BBC: What are Power Balance bands?

Britain will discover that it has a constitutional court in the form of the judicial committee of the Privy Council, an obscure body that will be called upon to adjudicate the inevitable and possibly bitter tests of strength between the various parliaments and assemblies.

ECONOMIST: Sunshine and showers

Welcome to a typical Highland gathering: a day of tests of brute strength, lung-power and agility, an entertainment that can be found nearly every weekend somewhere in the Scottish Highlands during the summer.

ECONOMIST: Tossing away the caber

Whatever your strength as a golfer, Jones tests it repeatedly on these courses.

BBC: An epic Southern fried golf road trip

Dishman incorporated two tests that measure the strength of a patient's speech with a recording chip, and three others--a peg board, two piano keys and videogame-type buttons--that measure reaction time and speed of movement.

FORBES: On The Cover/Top Stories

And the strength of his party's support for him faces critical tests in the coming months.

ECONOMIST: A wounded president fights on

In 1998, India's nuclear tests were code-named "Operation Shakti, " the Sanskrit word for strength.

WSJ: India's Missile Launch Puts China in Range

These tests would assess the impact of different financial and economic scenarios on an institutions earnings and capital strength.

FORBES: Banks Will Be Under More Stress In 2012