This classic 100-200-300 total rep is a variation on the Murph Challenge, a popular Memorial Day workout done in honor of Medal of Honor recipient Navy Lt. Michael Murphy. This variation is a max rep ...

“You can reduce your usual workout intensity or duration by half. It might seem counterintuitive, but it is a game-changer ...

Running at the best of your ability is somewhat of a numbers game. To hit new PBs, you’ll want to keep tabs on all kinds of stats, like distance covered, pace per mile (or interval), max heart rate, ...

Three favorite workouts from the "Classic Week of Training" have been used for decades to improve fitness test scores and create overall improvement in muscle stamina and endurance. Typically, we do ...

Build lean muscle and achieve peak strength on this track. It incorporates all of the dumbbell and bodyweight strength and power workouts to ensure your muscles are properly loaded week to week in ...

The fitness professional, 39, opens up to PEOPLE about how she prioritizes her active lifestyle at home and on The Challenge Workout MTV's The Challenge is back with another season of its workout ...

The sun is out, temps are soaring, and carefree summer vibes abound. Why not channel that energy into your workout routine? This five-day break-a-sweat workout challenge, courtesy of Class Fitsugar, ...

If your current workout routine is a snoozefest, allow me to make a recommendation: this 5-day full-body workout challenge from POPSUGAR's Class Fitsugar. We've teamed up two of our most hilarious and ...