Here is an absolute killer abs workout you can do at home in 10 minutes. This is NOT for beginners as it would cause injury, if you are a beginner, please start with crunches. This advanced abs workout – it’s a really simple and painful 10 minute workout that you can do once or twice a week, more is not better. There are only three exercises, windshield wipers and weighted crunches super-setted.
weighted leg lifts
Do this superset three times with 2 minutes rest between supersets.