Respuesta :
This is an example of concentric contraction because muscles cause the
elbow joint and arm to move.The biceps and brachialis muscles in the elbow
are responsible for movement in this part of the body. The muscles shorten
thereby causing the elbow joint and arm to move.
The concentric contraction is characterized by the muscle tension rising to
meet the resistance before becoming stable with a corresponding
shortening of the muscle. This explains what occurs during the picking of a
cup to drink from it.
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