When you preform an arm curl, you use your bicep muscle. it all depends on how you curl. If you curl straight up or do a twisting motion while curling. You use your shoulder and bicep and maybe a small portion of the pectoral muscle where it meets the shoulder.
It helps biceps because you are curling it and that helps biceps
Your Abdominals
If you are referring to the dumbbell bench press, which works both arms independently, then the muscles being worked are mainly the pectoral and tricep muscles. Other muscles that are indirectly involved are the shoulder (deltoids and trapezius) and the lats (latissimus dorsi).
Hamstring - Semimembraneous
The triceps muscle (and still the biceps muscle, to a certain extent).
The most common exercises for strengthening your arm muscles include: Biceps: Seated curls Standing curls Triceps: Tricep extensions Lat pulldowns Pull Ups Dips Forearms: Reverse curl Wrist curl Rock climbing
The main muscle used in curls is the biceps.
Recus Abdominals. "Abs"
The preacher curl in my opinion is the best bicep exercise.It is better than barbell curl because barbell curl works bicep brachii but it does not give enough work to brachialis muscle.Preacher curl works both Bicep brachii and brachialis.First Mr.Olympia Larry "The legend"Scott used to do Preacher curl and he developed 20' inch Arm.
muscles work in pairs so when the bicep relaxes the tricep contracts, these actions create elbow extention (arm lowering) creating an objuce angle- lowering stage in a bicep curl
The muscles of the arm are natural tighteners to the skin of the arm
the arm muscles which are called reflexs. the arm muscles which are called reflexs. the arm muscles which are called reflexs.
the bicep contracts in a concentric contraction which means the muscles has shortened. remember muscles can only pull they can not push. also the bicep curl can be described as elbow flexion and when the weight is lowered is called elbow extention. hope it helps
you use your leg muscles alot and your arm muscles. you use your leg muscles alot and your arm muscles.