A six pack can be developed and toned through the use of crunches, sit ups and squats. Natural exercises can strengthen and develop your abdominals as well. Circuit training is often the ideal means through which one can tone and develop the body's mid-section. Resistance-based cardio workouts as well as strength training are ideal in developing these much-desired muscles.it  Fat burning routines are essential as well due to the fact that fat tends to accumulate in the body's mid-section. Using cardio workouts you can help trim the fat around the core area. Once the fat has been reduced your abs and a six pack can begin to form and develop. Weight lifting and strength training can also help increase the appearance of abs & a six pack. mats, resistance based equipment