Pull up wprkout paying off!

[jose_jalapeno]

I've been working on pullups since new years and have finally been able to do 30. But I am still skinny. How do I make it turn to muscle?

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[Jrahien]

If you're only doing pullups, you're only working our your biceps and upper back. If you're trying to gain significant body mass, you need to be working your entire body.