Assisted Underhand Chin-up
Muscles
Target
Latissimus Dorsi
Synergists
Brachialis
Brachioradialis
Teres Major
Deltoid, Posterior
Rhomboids
Levator Scapulae
Trapezius, Lower
Trapezius, Middle
Pectoralis Major, Sternal
Pectoralis Minor
Dynamic Stabilizers
Biceps Brachii
Triceps, Long Head
Instructions
Preparation
Step up and grasp bar with an underhand grip. Step down onto assistance lever or platform.
Execution
Pull body up until elbows are to the sides. Lower body until arms and shoulders are fully extended. Repeat.
Comments
If no assisted machine is used, assist as needed by allowing training partner to pull feet up behind legs or push self up with legs on elevation.
Source: exrx.net