Slow running is a fitness trend with some hard and fast science behind it
Deceleration isn't really in the runner's vocabulary. For many of the people who do it, from Olympic champions to 5K enthusiasts, running is the pursuit of speed itself; a sport defined by personal bests, competition, st riving and St rava. Slow? That's a four-letter word.
Or at least it was, until quite recently. In the last year or two, slow
