I read a Frederic Delavier’s book « Strength Training Anatomy » and there is good stuff.
Standing with your feet slightly apart. Your arms are along your body with the handle in your hand in pronation :
Inhale and raise your arms until your eyes level
Exhale at the end of the movement
This exercise works your deltoid (mainly anterior beams) and pectoralis major (upper chest) and a little bit the short head of biceps.
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