erector spinae

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  Smith machine bent-knee good morning

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  Flat bench hyperextension

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  Lying weighted lateral neck flexion

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  Straight-leg cable pull-through

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  Seated twisting cable row

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  Twisting hyperextension

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  One-leg hyperextension

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  Kettlebell swing

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  Barbell sumo deadlift

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  Machine back extension

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  Barbell rack pull

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  Cable squat