This sawhorse exercise may look as though it were calculated to break you in two, but actually it is quite simple. It involves toning up not only the abdominal muscles but also the muscles of the seat and thighs. After you have done it for a few weeks you will find you have acquired firmer thighs and seat and a flatter abdomen, and your balance will have improved. Remember, your exercise session should last 15 minutes every day.
Lie across the sawhorse and relax, allowing arms and legs to sink to floor and keeping muscles as loose as possible.
Tighten seat muscles and raise upper and lower body, maintaining balance. Hold for five seconds; repeat five times.