," says Jason Karp, an online running coach in San Diego, US (runcoachjason.com). If you're new to speedwork or coming back after injury, reduce the number of intervals in the following workouts by half and spend more time warming up, recovering
Tempo workouts, speedwork, long runs, not to mention work, family and life in general... how can a runner fit it all in? One time-efficient solution: combo workouts, which blend elements of quality runs to make the most of every minute you have
