This is addressed on the website www.jumpmanual.com. ANYONE can produce steady gains on their vertical jump (running and standing), speed, and quickness despite race, gender, age or any other PERCEIVED limitation. We can ALL train our body to be more explosive.
If you are older and wondering if this is a suitable program please go here: http://www.jumpmanual.com/312
This program is suitable for all sports requiring greater vertical jumping ability, speed, and quickness.