The exigo 45 degree hack squat is a great machine for beginners as well as strong elite gym users this machines has smooth motion and great support when using the correct technique of this machine is the perfect one for preventing injury as it keeps the back straight the entire time you are using this machine the 45 hack squat allows you to add as much weight as you like because it is a plate loaded machine you can get the accurate weight for the user limiting the back use in this workout t