Most solid training plans include a weekly speed workout, often in the form of intervals. But the length of those intervals usually depends on your race distance, training goals, and fitness level.

There are all types of cycling intervals under the sun, including short Tabata-style intervals of repeated on-off efforts which have become popular. How effective are they compared to longer, steady ...

HIIT (high-intensity interval training) has swept the fitness world in recent years and the workouts are now a staple of gym classes and indoor training routines. HIIT workouts are recognised as a way ...

The dreadmill. The hamster wheel. The clothes hanger. Treadmills often get a bad rap, and many runners consider them an inferior way to train, but hear us out! Using a treadmill to practice run/walk ...