Late last year I joined a new gym and got a Samsung Gear Sport to optimize my time doing all the things — running, jumping, picking stuff up, putting stuff down. It was a mistake. Not the gym ...

If you’re in a run/walk training program, going out for a workout isn’t as easy as lacing up a pair of running shoes, connecting your GPS watch, and selecting the “open run” option. You need to track ...

When 3 p.m. rolls around, my energy levels are usually at a low — the midday slump is in full effect, and another cup of coffee would only deliver a case of caffeine jitters. What is helpful though, ...

Interval training has become very popular these days, thanks to high-intensity interval training, or HIIT. Proponents of this type of exercise say it delivers many of the benefits of a much longer ...

The long overdue feature helps anyone who likes intervals, tempo workouts, or is on a training plan The long overdue feature helps anyone who likes intervals, tempo workouts, or is on a training plan ...

If you want to become a fitter and faster runner, especially if you have a target race in mind, the best thing that you can do is select and follow a structured training plan that aligns with your ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. If you find running ...

Rest intervals are an overlooked aspect of training. During a workout, you want each set to approach failure, with the requisite weight, reps, and intensity. This points to longer rest periods between ...