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The Chin-Up (Underhand Grip) is a strength exercise that primarily targets the muscles of the upper back and arms. The exercise is performed with a horizontal bar, with palms facing inward. It is important to perform the exercise slowly and with control to avoid injury. Variations of the exercise can also be performed, such as chin-ups with a wider or narrower grip, to target different muscles.
Start by hanging from the bar, with palms facing inward and shoulders pulled back.
Pull your body up until your chin is above the bar.
Slowly lower your body back to the starting position.