Think circuit training is for the feeble and faint-of-heart? Think again. Hardcore Circuit Training for Men: The 4 Miler Workout is a no-nonsense approach to high intensity fitness training. This workout is intense, diverse, creative, and, most importantly, proven. The 4 Miler (6.4km) is an extremely uncomplicated but effective circuit. It is ideal for improving your aerobic fitness. It is a short fast run (not jog) broken up by a few small exercise circuits. It is perfect for someone in a hurry or to fit into a lunch break. The exercises in this book will give you the motivation you need to get super fit, and the expertise required to dramatically improve your muscular strength and aerobic fitness.