a method of athletic training using alternate sprinting and jogging
Also called: fartlek
fartlek in American English
(ˈfɑːrtlek)
noun
a training technique, used esp. among runners, consisting of bursts of intense effort loosely alternating with less strenuous activity
Word origin
[1950–55; ‹ Sw fart speed + lek play]This word is first recorded in the period 1950–55. Other words that entered Englishat around the same time include: International Gothic, bleep, drip-dry, hot line, point-of-sale