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The deadlift is a heavy compound movement that should be included in the
exercise program of any lifter. As this lift will strengthen not only the entire
back, but the musculature of the hips, abdominals, and legs, as well as work
the grip, proficiency in this lift is a must. Like the squat, the deadlift
will stimulate a growth response from the body that should carry over into
strength and size gains in other areas.
There are two basic styles of deadlifting, conventional and sumo. Each style
will be explained, and compared to the contrasting style. While certain
aspects of deadlifting are similar, such as the fact that the lifter is
basically picking a weight up off of the deck, and raising to the highest
possible level without bending the arms, a great many differences in
biomechanics occur as a result of the differing styles.
The conventional stance consists of the athlete standing with the feet approximately
shoulder width apart, or slightly narrower. To position the feet properly,
slide them forward as far as possible without moving the shoulders in front
of the bar. The hips should be as close to the bar as possible as well, but
the lower back must remain arched. The head should be elevated so that the
athlete is looking forward and slightly upwards. The shoulders should be
back, but slightly rounded. Retracting the shoulders causes the shoulder
girdle to elevate, increasing the distance the lifter must pull the bar. The
athlete must grip the bar tightly, and to ensure that the bar does not roll,
a mixed grip (one hand supinated, one hand pronated) is often employed.
The true beginning of the deadlift is the set up, or the first phase (as it
is known in Olympic lifting), which has already been described. The next
step, before pulling the bar free from the deck is to fill the abdominal
cavity with air. While drawing in as much air as possible, the goal is to
push it down as far as possible, not fill the chest cavity. Filling the chest
cavity with air elevates the shoulders, which will increase the distance the
lifter must pull the bar.
The deadlift is initiated by simultaneously extending the knee and hip
joints. The knee will extend due to the contraction of the quadriceps muscles
(vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris),
and, during the extension, may move slightly to the rear. The hip joint will
extend secondary to the contraction of the gluteus and the hamstrings (biceps
femoris, semitendinosus, and semimembranosus). While the entire hamstring is
active to a certain degree during the deadlift, the semitendinosus and
semimembranosus are recruited to a much greater degree to extend the hip
joint.
The bar should be pulled into the body, as well as up. This keeps the athlete
from falling forward during the lift, as it helps maintain a far more stable
combined center of gravity (CCOG). This is where the placement of the feet is
a significant factor. If they are too far forward, causing the shins to be
closer to the bar than necessary, the bar must be pulled around the knees,
instead of past them. This shortens the lever arm distance and reduces the
resistive torque.
During this period, and indeed, throughout the entire lift, the musculature
of the upper back and shoulders (trapezius, latissimus dorsai, teres minor,
subscapularis, infraspinatus, supraspinatus, as well as the anterior, medial
and posterior deltoids) will be undergoing an isometric contraction to hold the
bar in a stable position. In the arm, the biceps brachii, brachialis, and
brachioradialis will also contract isometrically to stabilize the elbow
joint. The forearm flexors are extremely active during the gripping of the
bar.
The erector spinae (iliocostalis thoracis, iliocostalis lumborum, longissimus
dorsai, and spinalis dorsai) will contract during the lift, along with the
intertransversarii, interspinalis, rotores, and multifidus muscles to bring
the spine into an erect position. These muscles become more active once the
back is extended past a point that would be 60 degrees away from vertical.
The inter-transversarii, interspinalis, rotors, and multifidus will also
serve to stabilize the vertebrae and discs. In the conventional deadlift, the
torso is inclined far more than in the sumo style, in direct contrast to
recommendations for a more erect torso to reduce shear force on the lumbar
vertebrae (4, 9, 12).
As the bar travels past the knees, and up the thighs, several key points must
be noted. It is imperative that the knees not re-bend once they have begun to
straighten. In addition to the extra strain this will put on the ligaments
and tendons, secondary flexion of the knees (hitching) is cause for
disqualification during a competition. Another mistake that is often made as
the lift nears completion is the lifter will try to pull the torso back, when
it is far easier to simply push the hips forward. This technique will allow
the athlete to shift some of the strain from the erectors to the larger muscles
of the hips, including the gluteus. At the top of the lift, the shoulders
should be pulled back to indicate the completion of the lift. This is not
necessary for routine training of the deadlift, but a powerlifter should
practice this to avoid unnecessary red lights.
The major difference that occurs in the sumo deadlift is the placement of the
feet. They are placed much wider, sometimes even twice shoulder width,
although this is an extreme. The toes are turned outward, sometimes to the
point where the angle of the feet approaches 160 degrees. There are several
biomechanical advantages to this stance. The distance the bar must travel is
greatly lessened as the hip angle is on average 12 degrees greater than the
hip angles of conventional deadlifters, while the knee angle is approximately
13 degrees greater. (7, 12) The trunk angle is significantly closer to
vertical, which, from a pure safety standpoint, the sumo stance decreases
both L4/L5 moments as well as shear forces. (4) Furthermore, the sumo stance
allows the lifter to keep the bar closer to the body, which shortens the
movement arm to the lumbar spine. (12) This stance can reduce the total
distance the bar travels by as much as 25 – 40%. (7)
The functional technique in the deadlift is different as well. The athlete
pulling a conventional deadlift will push straight down with the feet,
whereas in the sumo deadlift, the knees must be pushed out over the toes.
This is important, to avoid lateral shear force on the knee, as well as the
fact that it allows the lifter to engage the larger muscles of the hips
earlier than in the conventional stance. As a function of the bar being
closer to the lifter, it will contact the legs earlier. As the bar slides up
the thighs, it is important to ensure that the fingers of the pronated hand
are not torn open by the friction thus generated. A modest amount of baby
powder or talcum may be applied to the legs to reduce the chance of this
occurring.
One factor that has not been discussed that makes the deadlift unique among
the three powerlifts is that unlike the squat and bench, there is no
eccentric (lengthening, or lowering) portion prior to the concentric
(shortening, or raising) of the bar. This has the function of negating the
stretch reflex, a fact that is often overlooked by many athletes and coaches
alike. There is a way of generating a small stretch reflex, which may help
when initiating the lift, but nothing like the reflex that can be generated
during the other two powerlifts. In the conventional stance, a slight rocking
of the hips, which will cause the knees to flex as well, can be employed. The
lift should be initiated when the hips are at the lowest point, and this
movement must occur rapidly. Care must be taken when doing this, as if the
hips descend too far, the lifter will be at a biomechanical disadvantage.
Unsurprisingly, there is a difference when using this technique when pulling
sumo. This technique (often called ‘diving’) can allow the sumo lifter to
generate a greater stretch reflex without moving out of position, unlike the
conventional deadlift. Because the feet are father apart, instead of just
raising and lowering the hips, the hips should be lowered rapidly then thrust
forward at the bottom of the descent. This allows not only for a greater stretch
reflex, but for an even more erect torso than lifters who pull from a static
position.
Variations on the deadlift
There are several varieties of the deadlift, and can be used not only to
assist in deadlift training, but can also significantly strengthen muscles
that can be impeding progress in another lift. Some of these lifts can be
used in place of the deadlift during training as well.
One of the most common variations of the deadlift is the partial deadlift, or
rack lockout. These are usually performed in a power rack, with the pins set
at a variety of heights. Pulls can be done from one inch above the deck to a
couple of inches below lockout. As a general rule, the shorter the ROM, the
more weight that can be handled. The primary function of the partial deadlift
is to not only overload the muscles of the back, as well as increase motor
recruitment. (5, 18) At times, the amount of weight that can be handled
during the execution of a short range of motion rack pull can be so great
that it surpasses the amount of weight the athlete can hold. In this case, it
may be necessary to employ straps to secure the weight. (6)
Another common variation is the stiff-legged deadlift (SLDL) which will work
the hamstrings to a much greater degree than the conventional deadlift. (2,
10) This lift should begin just like a conventional deadlift, and should be
pulled to the top in the same manner. The knees will be stiff, but not
locked, as the bar is lowered as far as possible without allowing the back to
round. The lower back should remain arched throughout the entire lift, and if
the back begins to round despite the best attempts of the athlete, it is
necessary at this point to begin the concentric portion of the lift and raise
the bar. The bar will travel away from the lifter as the hips are flexed
progressively. There is greater torque on the hips and lumbar areas because
of the greater horizontal distance from the bar to the base of the support
than in the conventional deadlift. (3, 4, 17)
Despite the fact that numerous “muscle mags” often illustrate a lifter
performing this exercise while elevated, this should be avoided by all at
first and most athletes for the duration of their career. The greater the
range of motion, the greater the chance of lifting with a kyphotic (round
back) posture. (10) Artificially increasing the ROM will serve only to
increase the chances of this occurring. It must also be noted that a
comprehensive stretching program is essential to not only athletes, but
everyone wishing to improve the ROM of this exercise.
The Romanian Deadlift (RDL) is used primarily to strengthen the hamstrings,
gluteus, and lower back, although this technique causes less stress to the
lumbar area. Unlike the SLDL, the RDL is initiated from the floor, although
the set up is roughly in-between that of the conventional deadlift and the
SLDL. (23) During the ascension, the knees should begin to straighten in
advance of the hips, with the goal of keep the torso at the same angle as in
the beginning of the lift for as long as possible. This should occur while
maintaining normal spinal curvature. Pulling in such a manner allows the
athlete to keep the bar closer to the base of support, decreasing the strain
on the lumbar area when compared to the SLDL. As the knees fully straighten,
the hips shall travel toward the rear slightly, then the hips are then
powerfully flexed, fully utilizing the hamstrings and erectors to complete
the lift. This lift is often performed by Olympic style weightlifters to
increase the strength of the clean pull.
Another variation that is not often performed is the Snatch Grip Deadlift
(SGL). This version of the deadlift is similar to a conventional deadlift,
with the only difference occurring in the placement of the hands upon the
bar. The grip is at least one and a half times shoulder width, while larger
lifters will often grip collar to collar. A good general guide to novices is
to extended the arms out to the sides, then bend only at the elbow. The bar
should be held at approximately the width of the elbows. The difficulty of
maintaining the grip in such a position, as the mixed grip cannot be used,
will require the used of straps for those not very experienced in utilizing
the hook grip. This lift will further stress the musculature of the upper
back, particularly the trapezius. (19) This lift is often performed by
Olympic style weightlifters to increase power of the first pull, making it
easier for the athlete to raise weights from the deck.
A simple method of increasing the ROM of a deadlift is for the athlete to
stand on a block. Once again, care must be taken to avoid kyphotic lifting
posture. The increase in ROM will necessitate a decrease in weight.
Deadlift Training
There are far too many methods of training to improve the deadlift to list
here. A few will be briefly discussed.
Periodization. This is a simple yet effective method of decreasing the volume
while increasing the weight. This process occurs over a period of weeks or
months. It is by far the most common method of training, although lifters are
branching out in new directions daily. This method has been discussed in
great detail in numerous other works, and will not be discussed further here.
Conjugate Training. This is a system of training the musculature of the lift
without overtraining the CNS with respect to a single lift. The deadlift is
not trained heavy throughout the cycle, and in some training cycles, may be
trained only rarely. This method was first used in Olympic weightlifting by
the incredibly successful Soviet Dynamo Club.(24) It was later used by the
original Westside Barbell Club in the 1960’s and 1970’s, as well as some
lifters on the East coast, including Bill Starr, a former Olympic
weightlifter turned coach. (21). It is currently the system employed by the new
Westside Barbell Club, of Columbus, Ohio, under the coaching of Louie
Simmons, the most successful coach in powerlifting history.(20) This method
will involve heavy assistance work for the lift itself, such as partial
deadlifts, good mornings, etc. A list of assistance exercises can be found
at: www.elitefts.com
An interesting variation for training the deadlift was employed by the great
Don Rheinholdt, the first man to squat 900 lbs. in competition as well as
being one of the first to deadlift over 800 lbs. He would set up with his
opener in the power rack eight inches off of the deck, and pull it. He would
then drop the pins one inch every week until the week before the meet, when
the plates were just a single inch off of the floor. This allowed him to
preserve his lower back while maintaining proper form.
A final word on a couple of myths. Numerous “experts” have cautioned against
utilizing the deadlift, incorrectly stating that it is hazardous to perform.
This is true, if the above cautions are not employed. While there can be a
place for round back lifting in the program of the highly advanced lifter,
this is a mistake for most and will not be discussed further. Other self
proclaimed authorities state that you must wear a belt when deadlifting. A
belt can help increase intra-abdominal pressure, as well as increase the
force generated when deadlifting. However, the majority of the deadlifting
done by any athlete should be performed without a belt to further recruit the
core muscles (abdominals, obliques, etc.).
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