肱三头肌臂屈伸坐在办公椅上,手在体侧支撑住椅子的边缘,双脚并拢放在地上,手臂用力支撑身体移出办公椅,屈肘,身体下降,双腿自然弯曲,下降到臀部接近地面时,肱三头肌用力撑起还原。建议锻炼强度:每组8-12次,2-3组主要锻炼部位:肱三头肌:辅助锻炼部位:三角肌,背部肌肉,胸部肌肉。坐姿伸展两臂尽量上举,双手并 Triceps arm flexion and extension sit on the office chair, hands on the side of the body supporting the edge of the chair, feet together close to the ground, the arm forcefully support the body out of the office chair, elbow, body decline, legs naturally bent, down to When the buttocks close to the ground, the triceps braces hard to restore. Recommended exercise intensity: 8-12 times per group, 2-3 groups of main exercise areas: triceps: Auxiliary exercise parts: deltoid, back muscles, chest muscles. Stretching his arms as far as possible on the move, both hands and