I made a vow to be more adventurous this year, so I’m signing up for all the weird and wonderful workouts I can find in my hometown of London, then reporting back on what I’ve learned about fitness, ...

If you’ve ever held a plank, paused at the bottom of a squat or pressed your palms together in front of your chest, you’ve done an isometric exercise. Ta-da! These holds might look simple — after all, ...

It’s easy to almost forget we have muscles in our back. We can see and feel our biceps and our abs working, but if we ever get a sore lower back, we often worry that we’ve hurt our spine. In fact, ...