September 2008: Online Training
Inside the maddening new world of online training

August 2008: Physical Fitness Test
Uncle Sam's Presidential Fitness program endorses video games. When did we go soft?

June 2008: Rowbike
Our man tests one of the wackiest fitness hybrids yet, a full-body-throttling rower on wheels.

February 2008: Tread Lightly
With the help of a gravity-busting treadmill, the Lab Rat endangers a world record.

January 2008: Holding My Own
New compression garments—don't call them tights—get a grudging endorsement.

November 2007: Legal Aid
Can two ounces of 5-Hour Energy—a fatigue-fighting drink that claims to be a healthy alternative to other sugar-rich energy drinks—deliver?

September 2007: Elevated
Can Viagra really improve high-altitude performance?

July 2007: Quiet Feet
Go with the flow, say ChiRunners, and your legs will follow.

June 2007: The Payoff
Train with purpose, pack your calendar with challenging events, and something remarkable happens: Fitness ceases to be a chore and becomes part of your life.

March 2007: Chill Out
Our aching Lab Rat tests the world's most expensive ice pack.

February 2007: Revving Up
Can a performance supplement be legal, healthy, and effective? The Lab Rat pops a fistful to find out.

January 2007: Pace Setter
With the latest iPod evolution, our human guinea pig turns on, tunes in, and...drops out?

December 2006: The Pain Cave
To find your limits, you must go past them.