Sit-ups can be a great way to strengthen your abdominal muscles that sit around your stomach. But they can quickly get repetitive and its easy to accidentally lose your form, so when boredom strikes, ...

Plus, which move is more effective for strong abs.

Want to run better? Stop doing sit-ups – here are five expert-recommended functional core movements to do instead.

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Fitness ‘I’m a Pilates teacher and these are the 5 core exercises I truly love and recommend for all ages and all levels’ Workouts I’m a personal trainer who works with seniors: These are the 4 core ...