Which of the following is an example of a concentric contraction?

dance move

injuring a non-dominant muscle

bicep curl

slowly putting a heavy object down

Explanation:

Concentric contraction is a muscle activation that cause tension through as the muscle shortens, generating force to move objects like dumbbells. So, during bicep curl, this tension by muscle shortening is always present because of the position that weigh is being lift, being biceps the muscles involved. (see image attached).

you! go to the gym or i will kick you out of here to the gym

true. these things define the personality of the person.