The quick answer:
Plyometrics train your body to handle generalized ground reaction forces in relation to gravity. If you or your client engages in activities where they rarely encounter forces other than gravity, plyometrics are an excellent way to manage improved daily function, balance, power, and athleticism.
Plyometrics also have the benefit of being almost infinitely modifiable by the fitness expert to suit the needs of a client. Techniques can be taught quickly and tweaked easily to engage multiple skill levels and ability ranges.
Further, the threshold for plyometric exercise can be altered quickly to induce greater muscular power, muscular endurance, or both.
Properly performed and instructed plyometrics will enhance any training routine and make the trainer’s services infinitely mobile as well since no equipment is required to perform these exercises.
Have fun with plyos and introduce your clients to new skill levels they never knew they had!