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You don't. It takes months and, usually, years of intense training of the right kind in addition to sufficient nutrition and rest. It's best to stimulate upper arm muscular development by training hard on the basic compound exercises, namely, squats, deadlifts, presses, rows, dips, and chins. Once you get your major muscle groups growing, you can do some specialized work for your triceps and biceps at the end of your whole body workouts.
Realize, though, that you may not have the genetic potential to have 20" arms. Some people do, but some people don't. You won't know until you try. Furthermore, you do have the genetic potential to increase the size and strength of your upper arms, and that's what you should aim to do.
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∙ 12y ago
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When the triceps contract what do the biceps do?
The triceps and biceps are antagonistic muscle groups; the triceps straighten the arm and the biceps pull it in the opposite way. Therefore, when the triceps contract, the biceps lengthen.
What are facts about the biceps and triceps.?
biceps are on your upper arm and triceps are below your biceps
What contracts when the biceps relax?
The triceps contract when the biceps relax.And, vice versa. The triceps relax when the biceps contract.
How are triceps and biceps useful?
When your biceps contract (and your triceps relax), your arm bends at the elbow. When your triceps contract (and your biceps relax), your arm straightens. The biceps and triceps enable you to bend or extend your arm at the elbow.
What are triceps biceps and hamstrings?
triceps and biceps are related (triceps for extemsion of the arm, biceps for flexion). Hamstrings are at a different place (in the leg). No relation
What biceps and triceps called?
The biceps and triceps are muscles. They flex and extend the forearm, respectively, so they are considered antagonists.
Are triceps and biceps present in the legs?
No, the triceps and biceps are only present in the upper arms.
What muscle work with triceps muscles to bend?
i am not sure but it might have something to do with your triceps and biceps
What kind of muscles are triceps and biceps?
The biceps and triceps muscles are examples of skeletal or striated muscle.
What is the antagonistic muscle for quadriceps and biceps?
for biceps it is triceps
What are antagonist for the biceps?
The Triceps brachii
Which muscle is the triceps paired with?
It is paired with the biceps brachii. The triceps extends the forearm and the biceps flexes it. ("making a muscle")
