To maximize forearm muscle development, prioritize three targeted movements rather than general grip exercises: dumbbell wrist curls (for the underside), dumbbell wrist extensions (for the top), and hammer curls on a preacher bench (for the brachioradialis).

noli's read

The ranking proposed by Jeff Nippard is based on a solid biomechanical logic that distinguishes grip strength development from overall muscle hypertrophy. A randomized clinical trial (RCT) conducted by Szymanski et al. (2004) demonstrates that adding specific wrist flexion and extension exercises yields strength and volume gains far superior to the practice of general exercises alone. Furthermore, anatomical modeling research (such as that by Murray et al., 1995) confirms that the brachioradialis muscle, which provides definition to the forearm, possesses an optimal lever arm when the elbow is flexed and the forearm is in a neutral position. Integrating a preacher bench for hammer curls will maximize this tension by stabilizing the arm, which prevents other joints from being involved. Finally, exercise science literature indicates that dynamic movements with a full range of motion stimulate muscle growth better than static contractions (such as the farmer's walk or hangs), which primarily generate high levels of overall physical fatigue. Thus, this selection targets each portion of the forearm particularly effectively.

the sources

No named source held this one up — that absence is part of the verdict.