Form The conventional deadlift can be broken down into three phases: the setup, the initial pull or drive, and the lockout.
Setup: When performing a deadlift, a lifter sets in a position that eccentrically loads the
gluteus maximus,
gluteus minimus,
trapezius,
biceps femoris,
semitendinosus and
semimembranosus while the
muscles of the lumbar contract isometrically in an effort to stabilize the spine. • The lifter sets behind the bar with it nearly touching the legs (roughly 1 inch away from the
shin), with feet pointed forward. • Then they hinge at the hips and bend the knees, maintaining flat feet, allowing the shins to move forward to touch the barbell but not push it away. • The lifter grips the bar outside of the legs, roughly at shoulder width. • Next they raise the chest to position to maintain a neutral spine throughout the lift. • Then they pull the slack out of the barbell.
Drive: The next section of the deadlift produces the greatest amount of force. By pushing down through their heels while simultaneously pushing up and forward with their hips and maintaining a depressed scapula and a long tense spine, an individual can remain safe during this motion. This is considered the most difficult part of the entire movement due to the amount of work required to drive the bar off the ground. However in Strongman, it is not mandatory to lower the weight in such form.
Bars and weights Deadlifts can be performed using barbells (including standard deadlift bars such as Texas power bar and Ohio power bar, stiff bars such as S-cubed bar and Axle bar, and long bars such as
Elephant bar and Kratos bar) loaded with standard plates or other odd implements such as tires. Whenever standard 45 lb or 20 kg plates are used, the bar is situated exactly 9 inches above the floor. Deadlifts can also be performed using dumbbells, or kettlebells either with both arms or occasionally with one arm, and similarly with both or only one leg. Each of these variations is called for to address specific weaknesses in a lifter's overall deadlift. For instance, if the lifter has difficulty breaking contact at max weight, deficit deadlifts are performed to strengthen the gluteus maximus and hamstrings due to the greater range of motion required by standing on a platform. On the other hand, if the lifter has difficulty locking out, rack pulls are performed to strengthen the upper back, posterior deltoids, and trapezius. For the deadlift, athletes in equipped competitions use deadlift suits or briefs, which are elastic articles of clothing that store energy as the lifter bends down, and release it as they perform the lift. Equipped lifting distinguishes between single (one layer) and multi-ply (two or more layers) equipment, where multi-ply suits offer more assistance. In strongman, competitions may allow deadlift suits or briefs. Unlike powerlifting, where straps are not permitted in any category, most strongman competitions allow straps, which can help athletes for whom grip is a limiting factor. Standard figure 6 straps are allowed in most strongman competitions while figure 8 straps are also allowed in some competitions. The latter allows the lifter to hold the bar in their fingertips and can reduce the distance traveled by over .
Grips Typically, there are three grips used: overhand (pronated) grip, a mixed overhand-underhand (supinated) (sometimes called "alternating", "mixed", "offset" or "staggered" ) grip, or
hook grip. Of the three, double overhand provides the least friction, making it the weakest. When the flexed fingers open in an overhand grip, the bar rolls, and without any counteracting force, the grip can fail. Mixed grip counteracts this by sandwiching the bar between the hands pressing in opposite directions, allowing friction to be maintained evenly even if the fingers begin to open and preventing it from rolling out of the lifter's hands. Hook grip has both hands pronated as with the overhand grip, but introduces additional friction by trapping the thumb between the bar and forefingers. Some powerlifters adopt the overhand grip for their lower weight sets and move to the mixed grip to lift larger weights so they can achieve their one rep max. Most Strongman competitors use the overhand grip with the allowed straps.
Muscles involved A barbell deadlift is a compound exercise and works the
gluteus maximus with further work on the
quadriceps femoris,
hamstrings,
trapezius,
lats, and
erector spinae. The quadriceps, hamstrings,
adductor magnus, and
soleus serve as synergists during the exercise. For the powerlifting deadlift (where lifting straps are not allowed), the
grip strength is also a decisive factor. ==World records==