DumbbellSpinalJeffersonCurl健身视频教程-下背部锻炼

Dumbbell Spinal Jefferson Curl

Stand tall holding dumbbells in front of thighs with straight arms.
Slowly roll down through spine, reaching dumbbells toward feet.
Reverse motion, rolling back up one vertebra at a time.

DumbbellSpinalJeffersonCurl健身视频教程-下背部锻炼 - 小练场

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