This move is king when it comes to core. Try using a lightweight kettlebell at first, to avoid back injuries and work on your form. As your strength develops, you can increase the weight to add more resistance – but always remember to stay focused on performing the move correctly.

• Start with legs well apart, the kettlebell on the floor in front of you. 
• Hinge your body at the hips, and bend your
  knees slightly. 
• Hold the kettlebell in both hands between your legs and drive from the hips to swing the kettlebell to shoulder-height.
• Swing kettlebell back to between legs, and repeat.

Photograph: iStock by Getty Images

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