The Barbell Row Mark Rippetoe | August 23, 2017 Mark Rippetoe demonstrates the barbell row, a useful assistance exercise for intermediate and advanced lifters.Note: the supine grip works just fine if the weight is light, i.e. you're just starting to use the exercise. Experience has shown that as it get heavy, the supine grip can cause proximal bicep tendon irritation, and the grip should be pronated thereafter. Discuss in Forums