page_title: Barbell
section_title: EZ curl bars
hierarchical_section_title: Barbell / Other types / EZ curl bars
caption_attribution_description: English: curl-dumbbell Deutsch: Curl-Hantel (SZ-Hantel)
context_page_description: A barbell is a piece of exercise equipment used in weight training, bodybuilding, weightlifting and powerlifting, consisting of a long bar, usually with weights attached at each end.
  Barbells range in length from 1.2 metres to above 2.4 metres, although bars longer than 2.2 metres are used primarily by powerlifters and are not commonplace. The central portion of the bar varies in diameter from 25 millimetres to 50 millimetres, and is often engraved with a knurled crosshatch pattern to help lifters maintain a solid grip. Weight plates slide onto the outer portions of the bar to increase or decrease the desired total weight. Collars are used to prevent plates from moving outward unevenly so that the lifter does not experience uneven force.
  The barbell is the longer version of the dumbbell which is used for free weight training and competitive sports, such as powerlifting, Olympic weight lifting, and CrossFit. Many exercises can be done using the barbell, such as bicep curl, bench press, Olympic weightlifting, over head press, deadlift, and squat. Standard barbells are usually an estimated weight of 20 kilograms. Many fitness categories use the barbell for different reasons,
context_section_description: Originally known as a Dymeck curling bar after its inventor Lewis G. Dymeck, the EZ ("easy") curl bar is a variant of the barbell that is often used for biceps curls, upright rows, and lying triceps extensions. The curved profile of the bar in the grip region allows the user's wrists and forearms to take a more neutral, less supinated position. This reduces the risk of repetitive stress injury in these exercises. However, when performing the biceps curl, using an EZ curl bar prevents full contraction of the biceps-which can only occur with the wrist fully supinated-and thus may prove a less effective exercise.
caption: An EZ curl bar
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