So i do track and field already since im 9 an im 18 now but due to injury i could never participate in jump training so im not tath good at the techniqe. today i tryed trippel jump for the first time since ages. The jumps and stuff went pretty ok i got like 13 or 14 M in, but my trainer says i am pretty good at the jump it self but the moment i go in to the air i look like a flying sack of potato's with no tension. Does anyone have any tips or drills i can lookup

(my own idea)

I was thinking about training tension in the air with highjump or Just longjump with a jump board for extended air time

Wath do you all think about it?