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  1. 🦋 Supercharge Your Upper Body: Butterfly + Reverse Butterfly Superset! 💪 | Get Fit with David

    🦋 Supercharge Your Upper Body: Butterfly + Reverse Butterfly Superset! 💪 | Get Fit with David

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  2. Unlock 3D Arms with Hammer Curls! 💪🔥

    Unlock 3D Arms with Hammer Curls! 💪🔥

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  3. FAQ: How does rep speed affect muscle building & strength? (Day 1094)

    FAQ: How does rep speed affect muscle building & strength? (Day 1094)