Interval Training

Coach Andrew Sheaff explains exactly why some swim sets have short rest intervals and others have long rest intervals - and how to time yours perfectly for the workout you're doing today.

Use these running interval workouts - based on advanced training methods proven effective by scientists, coaches, and athletes - to become a fitter and faster runner.

Knowing when and how to incorporate interval training for triathlon into your schedule is an important part of reaching your potential.

Science and experience says we may be overthinking workouts.

New research supports what many runners do naturally, instead of the conventional wisdom that you should stay upright.