a
compulsory pose .
Directions: Standing face front to the judges, with the legs and feet in-line and a short distance apart, the competitor will raise both arms to shoulder level and bend them at the elbows. The hands should be clenched and turned down so as to cause a contraction of the biceps and forearm muscles, which are the main muscle groups that are to be assessed in this pose. In addition, the competitor should attempt to contract as many other muscles as possible.
For pics and more see
IFBB website .