P90X

Cardio X (1x11)

Date de diffusion: Jan 11, 2004

In this workout, you'll keep your heart rate well below its anaerobic threshold, the point where strength gains are made and muscle fiber is broken down. Instead, you'll sweat comfortably as your body pumps oxygenated blood through your system, flushing out lactic acid and increasing your number of capillaries. This routine can be performed in addition to your standard P90X workload, or as a substitute if your body needs a break.