The Complete Ab Workout uses combination of exercises that will not only hit the visible abdominal muscles but also the important deep inner core muscles in your torso, back, hips and pelvic floor to give you phenomenal stability.
Having good core stability and strength will help you to improve your overall strength by providing a solid foundation from which to lift weights. A strong core means a strong back, so you are less likely to get injured and it will also help you to improve your form when lifting weights.
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All exercises should be completed with proper technique maintaining good posture throughout. Use technique and posture failure as an indicator as to how challenging you find the resistance or exercise position. Optimize the resistance and exercise type according to your own ability.
It is important to incorporate exercises that cover all major muscle groups into your main workout to ensure a balanced program. Focusing too much on one muscle group can cause muscular imbalances.
Taking these guidelines into consideration means that you will get far more from your workouts, advance quicker and help reduce the risk of exercise related injury.
Always seek professional advice from a qualified fitness instructor before attempting any exercise or workout.