The most common mistakes include flaring elbows outwards, allowing the upper arms to move instead of keeping them stationary, using momentum to lift the weight, and hyperextending elbows at the top. These errors reduce tricep activation, shift tension to other muscles, and significantly increase the risk of joint injury.

You know your form is correct when your elbows stay relatively tucked throughout the movement, and only your forearms move by bending at the elbow joint. You should feel a deep stretch in your triceps at the bottom of the movement and a strong contraction at the top, without any discomfort or pain in your shoulders or elbows.

Poor form, such as flaring elbows or using excessive weight, can lead to elbow tendonitis (golfer's or tennis elbow), shoulder impingement, or strains in the rotator cuff muscles. Maintaining strict form protects these vulnerable joints by ensuring the triceps bear the load, not the connective tissues.

Absolutely. If you find yourself compensating, losing control, or unable to maintain strict upper arm stillness, reducing the weight is paramount. Prioritizing perfect form over heavy weight ensures maximum triceps activation, minimizes injury risk, and ultimately leads to more effective and sustainable muscle growth.

To improve form at home, practice with very light dumbbells or even no weight, focusing intently on the precise movement of only the forearms at the elbow joint. Utilize a mirror or video recording to visually check for unwanted upper arm movement or elbow flaring, allowing for immediate self-correction and muscle memory development.