- Get on your hands and knees, with your spine straight, as shown. Hold both ends of a resistance band, and place the centre of the band around the sole of your left foot.
- Tense your abs and extend your left foot behind you; hold for a one count.
- Bring your knee back down, but don't let it touch the ground. Repeat for a total of three sets of 15-20 reps on each leg.
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