To do the Pilates roll-up exercise, lay on your back on one of the best yoga mats, curl upwards to a seated position, then uncurl your body as you roll back down to lay flat on your back again.

Target Muscles: Core, lower back, shoulders Start in the seated position with your legs extended out in front and your arms nice and long. Take a deep inhale as you tuck in and roll down partway ...

To break up the monotony of his workout regime, Capitol Hill staffer Vincent Morris rolls a 20-sided dice each morning to decide which routine he'll complete. It's unusual and, he says, it works.

Do these push-up exercises in stages, as you get stronger: first against a wall, then against a bench or a desk and, finally, on the floor. Face a wall and place your hands on the wall at chest ...