I’ve been focusing on building strength in my core muscles.

Translation language

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Narrator

You should focus on building strength in your core muscles.

I regularly work out to build strength in my core muscles.

Have you been focusing on strengthening your core muscles?

If I didn't focus on my core, I'd have poor posture.

I am currently concentrating on developing the strength of my core muscles.

I've been working on getting stronger in my core.

I'm making my core muscles stronger.

To concentrate efforts on increasing muscular power.

The muscles in the center of the body, including the abdomen and back.