One twin only does hammer curls. The other twin only does preacher's biceps curls. Will it make a difference for how their arms look? - Quora
![Dumbbell Hammer Curl (Biceps, Brachialis and Brachioradialis) | Exercise Guides and Videos – Fitness Volt Dumbbell Hammer Curl (Biceps, Brachialis and Brachioradialis) | Exercise Guides and Videos – Fitness Volt](https://fitnessvolt.com/wp-content/uploads/2018/04/dumbbell-hammer-curl-1.jpg)
Dumbbell Hammer Curl (Biceps, Brachialis and Brachioradialis) | Exercise Guides and Videos – Fitness Volt
Weight Training Guide - Cross-body hammer curl. An auxiliary upper-arm exercise that targets your brachioradialis (in your forearm). Your brachialis (in your upper arm) and biceps brachii act as synergists. The standard
![Dumbbell Cross-body Hammer Curl (Biceps, Brachialis, and Brachioradialis) | Exercise Guides and Videos – Fitness Volt Dumbbell Cross-body Hammer Curl (Biceps, Brachialis, and Brachioradialis) | Exercise Guides and Videos – Fitness Volt](https://fitnessvolt.com/wp-content/uploads/2018/04/dumbbell-cross-body-hammer-curl.jpg)