Cyborg Kickboxer — Victor Appleton

SUPERCHARGED FIGHTING MACHINE!
Tom Swift's latest invention may revolutionize sports technology. His ingenious computer-controlled exoskeleton pumps and primes every muscle to the max. And now it has transformed Tom's friend Rick Cantwell into a contender for the kickboxing championship of the world!

But with the thrill of power comes a jolt of terror. For while the energy disks harden the muscles, they also warp the mind -- with dangerous results. When an unscrupulous kickboxer threatens to exploit the device, Tom's only chance to stop him is to don the high-risk, high-tech armor himself!