动作要领
Stand, bend forward, one hand on support. Hold dumbbell in the other hand, upper arm tucked and parallel to floor. Extend forearm back until the arm is straight.
动作要领
Stand, bend forward, one hand on support. Hold dumbbell in the other hand, upper arm tucked and parallel to floor. Extend forearm back until the arm is straight.
小贴士
1. Squeeze triceps hard when straight.
2. Upper arm must stay still.
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