Gorilla Row
The gorilla row uses a bracing arm against the ground to anchor and allow for heavier rowing and bigger gains.
Cues:
Brace in a powerful stance and lock your supporting elbow strongly to support your torso
Row the dumbbell by retracting and depressing your scap as you pull up with your arm
Mistakes:
Shrugging the shoulders towards the ears as you row
Allowing shoulders to roll forward when rowing
Rounding the low back
Standing too upright/failing to make torso horizontal