Keeping your Main tight, force by means of your front heel to stand up straight. Continue to keep the weights close to your shins while you pull up. For hypertrophy we want to make the lats do all the do the job. We could isolate them with the Dumbbell Pullover. https://hammerstrengthdumbbells80012.blogproducer.com/40269588/hammer-strength-dumbbells-an-overview