Are you a member at Gold's Gym? Have you heard of Body Attack? by Les Mills (i just linked to a youtube vid) It is by far the toughest class I've taken at any gym! Gold's Gym has a series of free classes designed by a company called Les Mills. They offer RPM (spinning) , BodyJam, BodyPump, etc. I'm required to do Plyos every Saturday so this class has 2 tracks geared for Plyometrics such as jumping squats, jumping lunges etc. My calves and my thighs have definitely changed just by taking this class. I dare you to try it...boys and girls! It's a full body workout !
<------me before body attack class
Here is a quick description of this high intensity class. : BODYATTACK™ is the sports-inspired cardio workout for building strength and stamina. This high-energy interval training class combines athletic aerobic movements with strength and stabilization exercises. Dynamic instructors and powerful music motivate everyone towards their fitness goals - from the weekend athlete to the hard-core competitor!
BODYATTACK™ is designed around a 55-minute two-peak format with 11 music tracks and exercises to challenge cardio fitness and stamina.