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Tom’s Guide
Tom’s Guide
Technology
Jessica Downey

I did 70 cycling Russian twists every day for a week — here's what happened to my body

Woman performing a Russian twist during ab workout outdoors against a grey backdrop.

My fitness goals and habits change pretty regularly but no matter what my next goal is, having a strong core will make things easier.

If I want to lift heavier in the gym this year, a strong core will benefit my form and allow me to push harder. If I want to improve my marathon time, I’ll need a strong core to build a strong foundation.

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