Exercise Name - Hammer Curl
Primary Muscle - Brachioradialis
Muscle Function- Elbow Flexion
Other muscle involved during this movement are bicep brachi and brachialis. These muscles also helps in front shoulder flexion. So the actual function of your bicep muscle is elbow flexion and front shoulder flexion.
To perform the full ROM standing dumbbell hammer curl, grasp a dumbbell in each hand using an overhand grip and stand with your body upright. Position the dumbbells by your sides with your arms straight. Turn your forearms so your hands are in the neutral position. Bend your elbows and raise the dumbbells up toward your front shoulders. Extend your elbows and lower the dumbbells down to the initial position. This exercise can also be performed seated.
Remember this is the isolation exercise. Do not swing or involve hip movements. Lift heavy enough weights in which you can perform your best. It has been generally observed that people swing their bodies while performing exercises such as hammer curl which is unnecessary and might lead to injury. Lifting heavy is of no use if the muscle is not actually lifting the complete weight alone.
In weight training, correct form improves the strength, tone your muscle and prevents you from any strains or fractures.
Study reference -
- Muscular coordination of biceps brachii and brachioradialis in elbow flexion with respect to hand position https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4526813/
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