Instead of standing, sit upright on a flat bench.
Without moving your upper arms, bend your elbows and lower the bar.
Tips:
Keep your core stiff.
Your forearms should be at least parallel to the floor.
Swiss-ball EZ-bar overhead triceps extension
Instead of standing, sit upright on a Swiss ball.
Keep your upper arms still, bend your elbows, and lower the bar until your forearms are at least parallel to the floor.
Tips:
Sit up tall and straight.
The bar should be above your head with your arms straight.
Keep your core braced.
Don’t lean forward or back