Brock puts on the 40lb weighted vest he wore cycling across Canada (http://www.biketobeatobesity.com),
and squats for 10 minutes straight, to give his legs a good shock.
Try throwing 10 minutes of squats into any workout to shock your system.
Brock & Marta take you through several isometric exercises, which are great for balance and muscular strength.
Then they take you through a full-body stretching routine, terrific for relaxing and speeding recovery of muscles.