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BLABTDR Method - Analysis of 200M Breaststroke World Record
Body Position
Kosuke Kitajima shows the full length of the body remaining remain
high to the water surface throughout each stroke cycle. The hips
remain high through each stroke and the head is taken below the
water-line between the arms after the breath is taken in order
to create a perfect streamline position.
Legs
The leg kick builds with speed with the feet finishing together
at the end of every stroke cycle. Kosuke Kitajima has exceptional
foot speed finishing and whipping the feet together with feet
and toes pointed. Excellent ankle flexibility is evident and
the kick creates perfect stroke length due to generative and
resultant power through maximising many muscle groups starting
with the Quadriceps fermoris (thigh / quad muscle) and finishing
with the Tibialis Anterior (the muscle that runs down the outside
of the shin).
Arms
The arm action sweeps to twice shoulder width with increased hand
speed throughout producing twice as much power on the in-sweep
when compared to the out-sweep. Hands lift to the water surface
with some hand motion out of the water with fingers always pointing
forwards. Elbows are tight inside the body-line. Hands recover
forwards exceptionally fast to the front of the stroke with the
hands pitched approximately 20 centimetres below the water surface,
the hands then sweep slightly upwards and outwards as they repeat
the arm stroke cycle once the feet have come together at the end
of the kick phase. .
Breathing
A sharp intake of breath is taken once during every stroke cycle.
Both lungs will be fully inflated to maximise the onset of oxygen
transportation. The head position is angled slightly downwards
to aid forwards propulsion and at the same time allowing the hips
to remain high. Vision will be no more than 2 metres in front.
The head position remains fixed and only rises and falls due to
the pathway of the hands throughout the pulling phase.
Timing
The timing of the stroke is achieved by a technical pattern of
pull, kick and glide. Kosuke Kitajima shows the distance that
can be achieved off a long leg glide. There is no overlapping
evident i.e. starting the pull prior to finishing the leg kick.
A snap shot of the stroke will see the feet recovered high towards
the hips with the hands finishing the in-sweep on the water surface
some 20 centimetres in front of the face, the hands then recover
so fast to the front of the stroke they reach this position as
the feet drive backwards. The power of the legs then drive the
body forwards with the hands cutting the pathway and vastly reducing
the effect of frontal resistance. This elite technique optimises
efficiency.
Dive Start, Turns & Finish
Kosuke Kitajima shows how underwater streamlining should be achieved.
He executes each of the underwater phases prior to any deceleration
and more importantly executes them at the exact point in time
where he knows he would lose velocity if he held on any longer.
Following a streamlined horizontal body position he shows a strong
butterfly (dolphin) leg kick, he then produces a strong breaststroke
pull out past his hips. The hand's recover forwards close to and
under the body and the kick then launches the body to the surface
for stroke transition to occur at the water surface.
The breaststroke turn takes place at full stroke length with the
kick action taking Kosuke Kitajima into the wall, knees are lifted
and a tight tuck occurs, the feet push off the wall when the leading
(underwater arm/hand) has found its pathway, the body leaves the
wall on its side rotating onto its front, the same underwater
skills are consistent throughout the performance on each of the
turns even though oxygen debt will be evident. The finish of the
race is on a full stroke cycle with consistent distance and speed
off the kick maintained.
Race Summary
Throughout the 200 metres race, Kosuke Kitajima swims with consistent
rhythm and timing with increased effort during the 2nd, 3rd and
4th 50 metres in order to hold the required output (velocity).
The given stroke count was 14, 14, 15 and 18 (61 stroke cycles)
for each of the individual 50 metres, excluding the underwater
phase of the dive and turns.
Interestingly, the stroke rate for the 2nd 50m was reduced after
the first length. The split times recorded were 28.91, 32.36,
32.97 and 33.27 giving 1:01.27 for the first 100 metres and 1:06.24
for the second 100 metres.
This resulted in a 4.97 second drop off between each of the
100 metres splits. When looking at velocity, Kosuke Kitajima covered
the 200 metre distance at 1.5685044 metres (5.176ft) per second
covering 3.076923 (10.153ft) metres per stroke with a total stroke
count of 65 when including the dive and turns.
When looking at this full number of strokes in relation to the
height of Kosuke Kitajima it may be argued that further world
records for the men's 200m breaststroke may only be broken by
a much taller man given his technical perfections and power to
weight ratio.
Kosuke Kitajima stands at 5'10'' tall and weight's 158 lbs.
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