“Who can jump the furthest?” To the untrained eye it can
appear one of athletics' simplest questions; after all, how hard can it be to run and jump as far as you can? However the long jump is a surprisingly technical
event, with the top competitors possessing a high degree of skill, on top of an
impressive amount of speed, strength and agility.
In competition, long jumpers usually have 3 attempts to achieve
their furthest leap, with the best competitors at this stage receiving an additional
3 jumps. Male long jumpers can leap almost as far as 9 metres, although any jump in
excess of 8.50 m will win most competitions. Whilst female long jumpers can get out to
distances approaching 7.50 m, with any jump exceeding 7 metres considered world
class.
The technical
aspect of a long jump
A Japanese athlete showing good form in the air |
The long jump consists of 4 stages:
The approach – in
which the athlete gradually accelerates to a maximum velocity over about 20
strides
The last two strides
– in which the athlete prepares their body for takeoff, whilst aiming to preserve
as much speed as possible
The takeoff – in which
the athlete attempts to create a vertical impulse through their centre of
gravity, whilst maintaining balance and control
Action in the air and
landing – in which the athlete attempts to combat the forward rotation
experienced from take-off, before landing in the most efficient manner possible
The long jumper must ensure their run up is carefully
measured, to make sure they don’t have to shorten their strides to takeoff from
the correct position (keep in mind that the last stride is naturally shorter
anyway). The distance they jump is measured from the front of the board they’re
supposed to jump behind, so it’s important that they get as close to the front
as possible, without overstepping their mark. The landing of the jump is also
crucial, with jumpers ideally landing with enough forward momentum so that their
body follows their feet into the sand, without making their jump shorter by
entering the sand at a lesser distance than their feet.
Bob Beamon’s leap
for the ages
In 1960 Ralph Boston broke Jesse Owens’ 21-year old long
jump world record by setting a new mark of 8.20 metres. That record was gradually improved
upon over the next 7 years, with the world record standing at 8.35 metres before the 1968 Olympic Games in Mexico. Going into the Games Bob Beamon was the
form jumper in the world, having won 22 of his previous 23 meets. However,
whilst he had actually exceeded the world record with a jump of 8.39 metres
(ineligible for the record books due to high wind), no-one could have predicted
what would happen next.
Beamon almost didn’t qualify for the final of the event,
overstepping the mark on his first two jumps, before he conservatively re-measured
his run-up to ensure his progress. With Beamon set to jump fourth, the first three jumpers in the final all faulted. The stage was set and
Beamon duly delivered, jumping further than any man had ever before; further
than most people at the time thought was even possible! Whilst the slight
tailwind and the high altitude were in his favour, Beamon had also leapt beautifully, finally fulfilling the enormous potential all of his
competitors knew he held.
Bob Beamon soaring through the air |
Before the tournament there had been talk of whether Bob Beamon
might be the first jumper to surpass the magical mark of 28 feet, with the old
record standing at just below 27 ½ feet. It was clear that he had passed the
old record with this jump, but no-one was sure of the distance for a while,
with the new measuring device being too short to measure the distance. When the distance of
8.90 metres finally appeared on the scoreboard Beamon, only used to non-metric
distances, wasn’t sure what it meant. When he was told that he’d not only
passed 28 feet, but also 29 feet, he was overcome with emotion, barely able to
comprehend his achievement.
Perhaps the most remarkable thing about Beamon’s great leap
was that it could’ve been even better. He grounded his bottom before the
mark his feet made in the sand, and his momentum upon landing was such that he
leapt forward on completion. However his remarkable record still stood for another
23 years, until a famous night of jumping in Tokyo…
Carl Lewis &
Mike Powell do battle
Carl Lewis - unbeaten in the long jump for almost a decade |
Carl Lewis was the golden boy of American athletics, dominating
both the sprint events and the long jump for much of the 80s and into the early 90s. Heading into the 1991 World Championships in Tokyo he was considered
almost unbeatable in the long jump, having won his past 81 competitions and claiming
two Olympic gold medals and two world championships along the way. Mike Powell
was expected to be Lewis’ closest competitors, but having lost his previous 15
meetings with Lewis, and with the lesser-known American’s personal best of 8.66
m some 13 cm short of Lewis’ best, he would have to do something special to
cause an upset.
Lewis, full of confidence from his recent 100 m gold medal
and world record, got off to a good start by jumping 8.68 m with his first effort, whilst
Powell’s best effort in the early rounds was 8.54 m on his second jump. Lewis
then increased his mark with his third jump, with a wind-assisted effort pushing
him to within 7 cm of Beamon’s famous mark as he recorded a 8.83 jump. Powell
now knew he would have to push himself to a new level to challenge Lewis, and in the fourth
round he almost landed the perfect jump, soaring close to 9 metres. He raised
his arms triumphantly, before the official raised the red flag to indicate a foul jump. Powell screamed in anguish, before he was shown the tiny mark in
the plasticine which showed how he’d marginally overstepped his mark.
Lewis had been intently watching Powell’s last effort, and
sensed that despite his foul this competition wasn’t yet over. Lewis set off
down the track for his fourth round jump, hitting the board perfectly and climbing high into the night sky. Despite being momentarily disappointed when the wind gauge
showed a level of +2.9 m/s level (making his jump illegal in terms of record
books), he celebrated when the scoreboard showed he’d passed Beamon’s mark by 1
cm, recording a new world’s best of 8.91 m.
Mike Powell celebrates his new record |
Powell wasn’t beaten yet though, and as he lined up for his
fifth jump you could see him uttering words to himself under his breath. He had a
steely focus in his eyes as he started his run-up, gaining impressive momentum
as he hit the board and soared through the air. Powell immediately celebrated,
but wasn’t sure if he’d done enough to beat Lewis’ jump. The wind gauge showed
that the jump was legal at +0.3 m/s, several seconds before the distance
appeared for the world to see: 9.95 m! Powell teared down the track in
celebration, whilst Lewis looked sternly on, composing himself for his next
jump. Despite two impressive jumps of 8.87 m and 8.84 m in the
final two rounds, Lewis was a beaten man for the first time in almost a decade.
He’d recorded the most remarkable set of jumps ever seen – passing 8.80 m on
four occasions – but his opponent had made the jump of his life to set a new
world record and beat him.
Even though I was only 8 at the time, I still vividly
remember this epic duel between two great athletes in Tokyo. Whilst there’s
always something fascinating about watching one great athlete excel – as Beamon did in 1968 – there’s something extra special about watching two fierce competitors pushing each other to new levels. I hope that we’ll get to experience some
similarly captivating moments at this year’s Olympic Games...
great post. you should have words with some of our science & maths authors about how they can actually make the science of sport interesting :)
ReplyDeletereally enjoying your a-z posts evan.