The Complete Guide to the One-Arm Dumbell Snatch
The one-arm dumbbell snatch is an excellent excessive for
developing core stability, full body explosiveness and power. It also is a great
functional movement, calorie burner and even cardio exercise when done for
higher numbers of repetitions.
Progression:
The
two foundational exercises for developing the dumbell snatch are the dumbell
overhead squat and the dumbell high pull. The snatch as well as the high pull
may be progressed through the high, low and Olympic rep ranges. The dumbell
overhead squat mimics the recovery phase and is performed with a single dumbell
held in full extension. The lifter lowers the body by flexing the knees and
hips while maintaining full extension from the sacrum up. This lift is
performed through the range of motion necessary for the lifter to drop
underneath (catch) the weight at its maximum pull height.
The
high pull is performed with a single dumbell from the bottom of the squat
position with the dumbell in front of the body. The lifter forcefully extends
hips and knees. Once the momentum has begun to build from the extension of the
knees and hips, the ankles forcefully plantar flex and a shrug is performed to
further increase the momentum of the weight. Lastly the elbow ascends drawing
the weight up to lower chest height while the triple extension of ankles, knees
and hips is reached.
Lift:
Preparatory Phase
The
dumbell should be positioned between the feet which are set shoulder-width or
slightly wider. The back should be flat and the head neutral. Hips and knees
should be flexed with heels on the ground. The free hand should be placed
behind the lower back so that is does not interfere with the lift. The
shoulders should be relatively square and the trunk should not be excessively
rotated. Remind the lifter to squeeze the shoulder blades together and “keep
the
chest up”. It is important to instruct the lifter to
maintain core integrity and a flat back throughout the entire lift. It will
help to remind them to lift with the legs and not the back as the legs tire
during consecutive repetitions. As with all Olympic lifts timing is everything
so ask the lifter to visualize explosively driving through the heels to full
and extension and quickly dropping underneath the weight before they begin.
Pull and Scoop Phases
The
first pull is performed by explosively driving off the heels and extending hips
and knees. The scoop begins once the dumbell nears hip height, there should be
no arm flexion until after the scoop. There should be triple extension at this
point of the lift (ankles, knees, and hips). At the moment the shoulder should
also powerfully shrug by elevating and retracting. Now the second pull is
performed as the upper arm abducts and flexion occurs at the elbow joint. It is
important to keep the elbow over the wrist and remind the lifter to, “lead with
the elbow,” so that the biceps muscles are not excessively used. The catch
phase begins once the dumbell reaches its maximum height at the lower chest
level.
Catch Phase
The
catch is performed once the dumbell has reached its maximum height from the
pull and the hips and knees are fully extended. The lifter rapidly drops into a
low squat while rotating and extending the elbow, wrist and should underneath
the dumbell. It is important for the dumbell to remain close to the body and
the lifter to move quickly underneath the dumbell during this phase. The back should remain erect and the heels
should be on the ground once the dumbell is “caught” at the bottom of the
squat. Once the shoulder and elbow are locked the lifter may begin the recovery
phase as they begin to exhale.
Upward Movement or Overhead Squat
and Recovery Phase
The
hips and knees extend in a controlled manner until the top of the movement is
reached with the lifter in a fully upright position. The lift is completed once
the dumbell is
stabilized with full extension of the
arm, shoulder, knees and hips. The lifter should be instructed to exhale during
this last phase and drive through the heels (“blow the weight up”). The weight may be lowered while exhaling and
bending at the elbow until the dumbell is shoulder height. The dumbell can then
be lowered form the shoulder by rotating the elbow back above the weight and
performing an eccentric squat motion while maintaining proper concentric form
with a flat back. Once the weight reaches the ground the lifter ma perform additional
repetitions or release the weight.
Critique:
I am the one in the pictures performing this lift several years ago so I feel a
critique is appropriate. During this lift the elbow could have been brought
higher and further back to keep the weight closed to the body (2). Also, the lifter did not reach full extension
before beginning the catch phase, which would have resulted in a failed lift,
had the weight been heavier. In the catch phase the squat could have been lower
to obtain a fuller extension of the arm extension earlier in the recovery
phase. There is also some excessive lower back extension and lateral hip
movement that could be eliminated by improving shoulder and hip flexibility.
Muscle Summary:
The primary muscles involved in the
snatch are the extensors of the hip (gluteals, biceps femoris), extensors of the knee (quadriceps), the
trapezious, deltoid, and extensors of the back. This exercise is useful in generating
explosive force production and stabilization under laterally loaded forces. It
is useful in a variety of sports including football, hockey, basketball and
volleyball especially in jumping and handling forces with the arms both above
and below the waist. Practitioners of this lift also prevent injury by learning
to absorb forces of a rapidly accelerating/decelerating mass unilaterally.
1st pull
|
Scoop and 2nd pull
|
Catch
|
Recovery
|
|
Shoulder
|
stabilization/ isometric contraction, posterior deltiod,
medial deltoid, rotator cuff
|
abduction and flexion, trapezious, pos. & medial
deltoids
|
superior rotation, all deltoid heads, rotator cuff
|
stabilization/ isometric contraction, posterior deltiod,
medial deltoid, andt. Deltoid and rotator cuff
|
Elbow
|
stabilization, biceps brachii, forearm extensors/flexors
|
elbow flexion, biceps brachii, brachioradialis, brachialis
|
stabilization, biceps brachii, forearm extensors/flexors
|
stabilization, triceps brachii
|
Back
|
extension, quadratus lumborum, spinal erectors
|
extension, quadratus lumborum, spinal erectors, rhomboids
|
Isometric contraction of spinal extensors
|
Isometric contraction of spinal extensors
|
Core
|
stabilization, rectus and transverse abdominis, internal/
external obliques
|
stabilization, rectus and transverse abdominis, internal/
external obliques
|
stabilization, rectus and transverse abdominis, internal/
external obliques
|
stabilization, rectus and transverse abdominis, internal/
external obliques
|
Hips
|
gluteal extension, maximus, minimus, medius, stabilization
of adductor triangle
|
gluteal extension, maximus, minimus, medius, stabilization
of adductor triangle
|
eccentric gluteal contraction, maximus, minimus, medius,
stabilization of adductor triangle
|
gluteal extension, maximus, minimus, medius, stabilization
of adductor triangle
|
Knee
|
extension, quadraceps femoris
|
extension, quadraceps femoris
|
eccentric contraction of quadraceps femoris and concentric
contaction of biceps femoris
|
Quadraceps, Biceps Femoris
|
Ankle
|
stabilization
|
plantarflexion,
gastrocnemius/ Soleus
|
dorsiflexion,
anterior tibialis, eccentric contraction of gastrocs and soleus
|
stabilization
|
Concentric/eccentric
|
Concentric
|
Concentric
|
Eccentric
|
Concentric
|
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