Now that we have covered the large muscle groups lets start on the core muscle groups an then the small muscle groups. Lets start with the abdominal muscles. The first exercise would be regular crunches. Start with the knees bent laying on the floor on your back. Contract the abdominal muscles so the shoulder blades come off the bound and hold for a second and then release and repeat until fatigue sets in. Another basic exercise is the situp but remember it will include the hip flexors. Stay tuned for more on the core very soon.