This kid already had big thighs from natural playing. So we did a lot of foot and ankle exercises and hip flexor strengthening to better transfer his leg strength.What exercises.
I'm 5'3 for reference and grabbed rim again a week ago. Last time I dunked was in 2002
Single leg RDL, tibialis raises, hanging leg raises with dumbbell in your feet, that sort of thing. Grabbing rim / dunking at 5’3 is incredible man. I’m 6 foot but my standing reach is only 7’8 and my vert is like 32-34” these days at age 36