Dumbbell overhead press:
Stand upright and keep the back straight. Hold a dumbbell in each hand at the shoulders with an overhand grip. Thumbs should be on the inside and knuckles facing up. Raise the weights above the head in a controlled motion while exhaling. Pause at the top of the motion. Return the dumbbells to the shoulders while inhaling. Keep stable position and do not violate the technique.
Mistakes and Recommendations:
Do not straighten your hands at the top point. This will help maintain tension in the deltoid muscles.
Do not relax your hands at the low point. It reduces the exercise efficiency.
Mistakes: jerking; extra body movements; excessive back arching; use of inertia