I've also been reading about that and trying to build plyo in to my workouts. I read that you should aim for 10 minutes of plyo three times a week. Depending on your level of fitness, plyo could be: squat jumps, jump rope, tuck jumps, burpees, mountain climbers, lateral lunge to track starter jump, jumping off of boxes, and jumping onto boxes. If you just google, you can find lots of ideas and short demo videos.