What kind of interval training do you do runners?
I've done interval training a few times in the past, but was wondering what kind of splits other people do and if there are any that work better for increasing speed than others. My intervals in the past have been either 1min fast/ 2min slow, alternated for 30 min, or I've done it by laps on the track .5 mi warm-up, .25 mi fast, .25 mi slow, .5 mi fast, .25 mi slow, 1 mi fast, .25 mi slow, .5 mi fast, .25 mi slow, .25 mi fast, .25 mi slow, .5 mi cool down.
