This is what hip height is all about.
You can have all the force in the world, but if you can’t deliver it quick enough you’re never going to look like this.
Sweet clip, thanks! Damn right, she looks great running there.
Good video…nice legs!
Christine Arron looks good, really, but her problem is and has always been that backward shoulder movement after the rear support phase. Her spine is too bend, it’s a “female” type of constitution (Marion Jones doesn’t have it), and because this part of her body is weak (many pains and injuries during her career) she doesn’t lifts much.
Note that her stride length at full speed in Paris was 2.42 metres, while in 1998, it was 2.50
Is it a big problem?
In 1998, a part budapest (10"73, + 2 m/s of wind), what was his other best race?
greetings,
valerio
hello everyone,
what kind of exercise can be done to get a lift going like that because most male athlete do not run like that and her stride is just beautiful.
PJ, its true that this happens, but it does seem to happen in harmony almost giving a whip like effect. Sometimes removing all movement and making the core too rigid can actually slow the athlete down is it can reduce this sort of “elastic rhythm”. I can see how this would give the body a real beating and lead to injury though.
That’s a hell of a stride length. How tall is she?
Arron’s 5 best races:
10.73 (+2.0) Budapest 19Aug98
10.81 (+1.3) Budapest 19Aug98
10.85 (+1.5) Montauban 05Aug98
10.95 (+2.0) Bonneuil 24May98
10.95 (-0.8) Bruxelles 28Aug98
She has recorded 13 legal sub11 races in 1998-1999-2000. Note that she didn’t pushed her effort to the finish for her 10.81 and 10.95 in Bruxelles.
She’s 1.77m or 5ft10
Actually, this movement don’t exist in Flo-Jo or Marion, her coach said it was because of her lack of back strength.
This beautifull lift can be obtain by a lot of TECHNICAL and QUALITY work: abdos, hurdles exercises and bounds with or without weight vests… In 1998, she didn’t ran 200m in order to improve her stride technique, as you all know, technique level at the end of a 200m with fatigue is decreasing (pelvis moves backward and knee lift is smaller), leading to bad technique movements and injury risks.
thanks!
she was very lucky with the wind in that year!
greetings,
valerio
im intrigued by what u said concerning the 200m. what do u mean by the pelvis moves back? because i know that my knees drop at the end of a competitive 200. i assumed it was lack of speed/special endurance, causing me to get tired, lactic acid, etc.
can one combat this pelvis movement and low knee lift at the end of the race, or is it simply through doing the training u mentioned above?
The slight forward hunch of the shoulders at full extension, is this caused by the leg kicking back, or vice versa?
Actually, analysing stride pattern of top female sprinters at 200m, i didn’t noticed any big changes in stride length between the 100-150m and 150-200m sections. The loss of speed is thus caused by the reduction of stride frequency (actually, longer ground contact time).
And if you lack at the technique in that 150-200m section, you see that head and pelvis are going backward, spine is bending, knees are lifting smaller, feet are turning outwards… This apocalyptic vision is due to general “fatigue” after 7-8 seconds, but it can be combat with proper stride and breathing technique saving energy, and specific resistance technique.
About 100m, it’s a little different, some nearly don’t breath at all (Flo-Jo, Jones, Devers…). Concerning Arron, she avoided 200m because her body is weak, and bad gesture could lead to injuries. About her speed endurance, she ran some 120m at training in 98 and was in the party with 10.40 guys! Her real problem was her reaction time and start, even though she did 3.04-3.05 electric time at training prior Budapest over 20m, which is damn fast.
Note that her training didn’t include much lifting and pliometric because of her spine and knee problems. She used a complex mix of concentric, excentric and isometric exercises.
Aside from the possible wear and tear related issues, I really can’t see a problem with the “rocking”. I actually think it is increasing stride length and improving use of elastic energy. It is extremely rhythmic and in perfect harmony.
I think that she is probably the number 1 120m sprinter in the world. The female equivalent to JJ Johnson.
Her acceleration would be better if she was more solid through the core and stronger in the upper and lower limbs, but this may end up being counter productive to her overall action at max v.
Pierrejean:
Can you give more detail of the problem? I don’t see it here.
Is the whole concept of running really to propel the COM forward as efficiently as possible, and allow the rest of the body to go along as best suits the individual?
Maybe it’s clearer on this picture, it was taken in Seville’99 (1st round, wind -0.4m/s, 11.10, max velocity 10.5m/s).
That year, Arron didn’t worked muscles development at all during most of the year because of knee problems. She was complaining she was less muscular than in 98, and her spine was even less strong than ever.
We see that the shoulders are moving backward as the leg is extended completely at the take-off. That curved spine isn’t noticable on other sub10.80 runners, and that’s because she has the less developped erector spinae. On the other hand, her abdos are surely one of the strongest.
Note that her knee lift iwas then a Privalova-like, higher than Arron does now with her new coach. She spends more time in the weight room now, but still less than her oponents.
Any comments?
Her arms really open on the back(down) stroke. I remember seeing a tape with Tellez where he said the opening up allows for a greater stride length. Shoul’nt the arm only open further back in the stroke(not before it passes the hips)?
Thanks Pierrejean, I see the issue in this picture. It appears that a weak core allows the hips to drop, prolonging ground contact behind the CG. The knee of the free leg is also in danger of rising above parallel, which would move it back towards the torso, rather than as far away as possible. This, in turn, would result in bringing the support knee forward, in reaction, reducing propulsive forces still further.
the first picture above shows slight hunch before impact.instead of remaining straight she has slight curvature in her spine.this is from a weak core right?
also charlie what happens when/if the knee does go above paralel?