IsoPlyometric Squat Jumps:
This Exercise is a long lost secret, taught to me by my coach when I used to compete to help improve endurance and strength to my legs.
This is no easy exercise, and some have said its dangerous, and, if you do suffer from high blood pressure this may not be an ideal exercise to perform, like wise you have to consider the rulings and guidelines for plyometrics.
To do this little chap all you need is to get hold of some nice and heavy dumbbells or kettle bells, the exercise itself is simple, stand with the weights in your hands, get down into the squat position and hold, hold it as long as you can, you want your legs shaking, grip killing, lactic acid burning, voice screaming, when you can take no more drop the weights away to the side and perform, straight away, 10 knee to chest squat jumps, the pain is intense, it will only last a short while but make sure you walk it off before you do it all over again!
PT Fitness