Gym on Sidechat | One day back to working out and wondering if this is a muscle or just my rib cage?

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One day back to working out and wondering if this is a muscle or just my rib cage?

13 upvotes, 2 comments. Sidechat image post by Anonymous in Gym. "One day back to working out and wondering if this is a muscle or just my rib cage?"

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Anonymous 11w

Serratus anterior, that’s a muscle

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Anonymous

#1 11w

Hype, thank you

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