Dumbbell One-Arm Triceps Extension

Starting position:

Grab the dumbbell, slightly bend your knees, position your feet at shoulderwidth and firm your torso. Lift up your arm with the dumbbell over your head so that the elbow is at head level. Hold the wrist with the dumbbell firm, do not bend it. Hold your other hand at your waist.

Exercise:

From the starting position do the motion bending your elbow, the dumbbell going behind your head slightly below 90 degrees at your elbow. Keep your wrist firm and unbent throughout the motion. Inhale while moving your hand behind your head and exhale as you extend, stretching the hand up.

Note: 

Keep your torso upright and do not bend at the waist, slightly inclined forward. Pelvis is in a neutral position. Keep the elbow in a single position without excessive sideways motion. Avoid using trapeze muscles (lifting shoulders up).

Recommendation:

Start with appropriate resistance to master the techniques well. If possible, exercise in front of a mirror to get the correct position of arms, elbows, knees and the entire body.