My father has been coaching football and basketball at the high school level since he retired from college coaching five years ago. Those sports require an athlete to be able to jump very high to be successful. He trains all of his players using resistance bands. He tells them all, resistance band training is excellent for maximizing your vertical jump. They work with the resistance bands throughout the majority of their workout regime every day. Each one of the new players has improved his jump tremendously since joining the team.  His team is always in the championships for his league.