Arm raises at the wall
Sit or stand close to the wall. Place your bent elbow and your whole arm on the wall. Lift them up while your are keeping your arms on the wall, without lifting the elbow up. Lift your arms as high as you can without the extension of the lumbar spine. Lower the arms down on the same way. Lower the elbow as low as you can without letting any part of your arms coming forward from the line of the wall
Perform 2 set 20 arms raises
(Overall 40 reps)