First, I just want to say what a blessing this site is. The richness and sheer volume of the information contained here is staggering.
After reading through the archives on several occasions, I haven’t been able to find quite the information I’m seeking, so I’m going to have to resort to making my first post.
My son - currently a 16 yo 11th grader - aspires to compete in track and/or football at the collegiate level. In order to make that dream a reality however, he must improve his speed and explosiveness.
It seems that he may have unrealized potential for explosiveness based on a couple of facts:
At a bodyweight of 165 lb., he performed 10r @ 230 lb. on hang cleans two months ago and more recently 5r @ 245 lb. - which he said he could’ve done 10 times. He also performed 5r of parallel squats at 305 lb. two months ago but hasn’t maxed since then. His HC has improved by 165 lb. and his squat by 150-175 lb. in the last two yrs.
The other piece of relevant information is that in performing the “strength deficit test” for VJ, his counter movement vertical jump is only about 5% different from his static vertical jump.
His testing numbers for each of the past three autumns:
9th grade ht. 65"wt. 128____VJ - 23.5"40 yd. (hh on grass)- 5.25
10th grade ht. 69"wt. 143 26" ____5.07
11th grade ht. 71"wt. 163_______27.5" 4.80
His standing long jump in March of 9th gr. was 7’ 11", competition long jump - 18’ 10". March of 10 gr. - SLJ - 8’ 9", competition LJ - 21 ft.
He’s tried plyometrics and jump squats for 8-12 week cycles in order to improve his explosiveness but so far hasn’t seen much in the way of results.
With a theoretical max of 1.82-1.94 x BW in the HC, shouldn’t his vertical be much better?
Could this be a function of physical maturity? (while many of his classmates are shaving, he’s still a few years away)
Is his squat (theoretical max of 2.12 x BW ) the limiting factor?
He will be grateful for and open to any suggestions. Thank you for taking the time to read this.