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the hamstring is used for flexing the knee
yes it helps
The cast of Flexing Muscles - 2012 includes: Charles Fairbanks Serpiente Negro as Serpiente Negro
Bending moving straightning flexing
flexing muscles
The muscle in your arm contracts. The muscle on the other side of your arm, opposite from the side that you are flexing, stretches.
When flexing your arm you would use shoulder muscles, mainly the deltoids and pectoralis major. If you flex your elbow (which most people think means flexing your arm, but is really the forearm), then you would use your biceps, brachialis. and brachioradialis muscles, which would be three muscles, depending on the orientation of the forearm.
To Flex in slang terms mean to "show off" If you flex your muscles, you are posing with your muscles bunched up, looking strong and dangerous - flexing is posing, bragging, showing off.
Muscles within the brachium are responsible for the extension of the elbow. These muscles also work for the flexing of the arm as well.
Biceps. Brachhil
opposite paired muscles are ones that while one is relaxing, the other is flexing. for example, the Triceps and Biceps are opposite.