If you're finding the usual plank and your standard core workouts too easy these days, after months of lockdown workouts or routine gym sessions, I have put together five stability ball exercises that might challenge you further.
Stability ball plank. If you can hold this steady enough its time to add the spiderman knee crunch. Repeat 10-15 times each side.
Crunch. The hardest bit is getting into position. Roll onto it and shuffle your feet back so the front of your feet are resting on the ball. Then draw your knees to your chest and repeat up to 15 times.
Feet-hands passover. This is a toughie and you need to remember to keep your back firmly pressed into the ground beneath you. It's easier with your knees bent too!
Single leg bridge. Start with both legs and progress to single leg once you find it too easy. Again 10-15 each side, getting those hips up nice and high.
Superman. Rolling onto your belly and supported by your hands on the floor, raise your straight legs together as high as you can, engaging your glutes and back. Hold for 5 seconds and release. Repeat 10-15 times.