All you need is a set of dumbbells.

We’ve all been there: You’re on the starting line of a race feeling fresh, excited, and ready to show that race who’s boss. So you take off—like really take off—and halfway in, you realize you made a ...

Combining Zone 2 running, goal pace running and sprinting in your weekly training plan can be ideal for developing aerobic endurance, pacing skills and explosive speed.

Whether you're preparing for a fitness test, looking to increase your running performance, or simply seeking a challenging and effective way to train, this dynamic workout delivers. By combining ...

When the gun goes off at the start line of a marathon, you might feel tempted to take off at a near sprint. But that’s a big mistake. You want to start your marathon at an easy pace so you can ...

Many runners want to get faster. But the biggest mistake you can make in that pursuit is constantly pushing the pace and trying to run every workout faster than the one before. Increasing your speed ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Q. I need to spice up my cardiovascular workout because I am getting bored. Any suggestions? - Stan McD., Freemont, Calif. A. In the 1930s, Swedish coach Gosta Holmer developed a system to stress both ...