BART YASSO
ON YASSOS ‘Working up to 10 is the key; that’s where a lot of people go wrong. They do a couple of them and think, “Oh, I can expect to run this time,” and that’s not really true.’ (Bart Yasso is the creator of Yasso 800 workouts)
ON YASSOS ‘Working up to 10 is the key; that’s where a lot of people go wrong. They do a couple of them and think, “Oh, I can expect to run this time,” and that’s not really true.’ (Bart Yasso is the creator of Yasso 800 workouts)