Monday I decided to take up a new challenge. The Core Challenge.
50 crunches 15 push ups 1 min plank 30 secs side plank each side 1 min
bridge 15 push ups 1 min plank 30 secs side plank each side 50 crunches 1 min
raised plank 2 mins. bridge 50 crunches
found at: http://tribesports.com/challenges/core-workout-everyday-for-7-days
Here are some explanations for the various steps: