Konsentrasjonscurl — Teknikk-analyse

Using Momentum (Swinging)

Swinging the dumbbell by involving the shoulder or torso reduces the tension on the biceps. This decreases muscle activation and growth potential, and can place undue stress on the lower back if excessive. It also negates the 'concentration' aspect of the exercise.

Incomplete Range of Motion

Not fully extending the arm at the bottom or not fully contracting the bicep at the top limits the muscle's work. This can lead to underdeveloped muscle fibers and a less effective stimulus for hypertrophy, as the full stretch and peak contraction are missed.

Wrist Flexion/Extension

Allowing the wrist to flex (curl inward) or extend (bend backward) during the movement can shift tension away from the bicep and onto the forearm flexors or extensors. This reduces bicep isolation and can potentially lead to wrist discomfort or injury over time.