DumbbellSingleArmSeatedOverheadTricepExtension健身视频教程-三头肌锻炼

Dumbbell Single Arm Seated Overhead Tricep Extension

Sit tall holding dumbbell overhead with one hand, arm fully extended.
Lower dumbbell behind head by bending elbow slowly.
Extend arm back up, squeezing triceps at the top.

DumbbellSingleArmSeatedOverheadTricepExtension健身视频教程-三头肌锻炼 - 小练场

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