We always stress training on your feet whenever possible!

So here is a standing lat pull down on a cable column. As you can see, you can vary the stance from a full squat to a half squat to no squat at all. You can also do a lunge stance or split stance or experiment with other stances.
Whenever possible, try to do as many pulling exercises standing. There is a time and place for a seated pulldown, but doing pulling exercises standing forces your lower body to work and balance the force you produce.

Dan Ritchie, PhD, is the Co-Founder and President of Functional Aging Institute and also owner of Miracles Fitness in Indiana. Dan has a broad background in the fitness industry including training and management in commercial and university/hospital-based fitness, for-profit, not-for-profit and educational facilities. His primary areas of expertise are in personal training for special populations: the athletes, pregnancy, blind, stroke recovery, Parkinsons, multiple sclerosis, cerebral palsy, Fibromyalgia, Alzheimers, etc. Dan was the winner of the 2014 PFP Trainer of the Year.