Basic ab crunches are a simple exercise that engages, chisels and develop the abs and core muscles.
Leg raises are an excellent exercise that engages your abdominal muscles while building strength in that region. It's also excellent for lower abs.
The lying Russian twists are an excellent exercise that builds your core and abs while chiseling that coveted "V" of the lower abs.
Easier than the regular crunches, the cable crunches strongly engage the abdominal muscles for strength and definition.
