hi everyone, this is my first post here so i'll give you a bit of background info about myself. i'm 18, in good shape, been training running-wise for like the last 8 weeks properly (weights and stuff for 18 months or so), and i'm training for selection for the royal marines on december 6th-9th.
basically my endurance has improved amazingly and i consider myself very fit, only problem is i've just discovered that my sprint work is very poor and i've got about 3 and a half weeks to build it up. do you think that is enough time to build it up to a good level?
also how should i go about getting really good sprint fitness and explosive fitness?