You don’t need weights to build core strength — use this 10-minute abs workout instead

Sit-ups are a great way to work your abs, but they’re not the only way to strengthen your core. And, anyway, endless repetitions of sit-ups and crunches can get a bit boring after a while. 

Fortunately, you can shake things up with this short, 10-minute core workout. You don’t need weights either — just a single resistance band. The best resistance bands often come in sets of several strengths, so you can find one that’ll challenge your muscles. 

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