jun said:
At least to me, split step is A SPLIT STEP. You take a small hop, and push off the ground. Of course ENTIRE MOVEMENT includes big explosive first step, and smaller step, split step and smaller step.
Of course how you do one of these things can change depending on situation.
I don't think anyone REPLACES small hop with shuffle step or anything else, unless situation calls for it.
Listen, I call things as I see them.
Just to make sure I'm not telling you things that I don't see, I checked again Edberg at the top, in the 1991 USO F with Courier, which I have on tape.
2nd set, 4-3, Edberg in the foreground, thus close to the viewer and the camera, serving and volleying and smashing on each and every point.
Not even once was I able to see a hop. Perhaps he does a very small one, but it unobservable. Mind you, on returns and generally at the baseline, his jumping split-steps are observable (say 1 inch), but not very high. This is a very, very smooth player.
What I saw is that in situations where others would hop when coming at the net, he establishes a larger base (more distance between the two feet) and does some very quick and short/small braking/shuffling steps with both feet, followed by changes in direction, with larger strides, etc. BTW, I saw that in Federer sometimes, when coming at the net.
And keeps all the time a
very level and quite low center of gravity, using those massive quads of his to advance while "seated".
This is somewhat in accordance with what I find in "World Class Tennis Technique", Roettert and Groppel, Eds, 2001, p. 227, on Split-Step:
Drop your body quickly and lightly by bending your knees so that you feel for a split second as though you no longer feel the ground under your feet. This maneuver is called "unweighting" You will have come across this term if you ever been skiing ...
Now in order to drop your body in order to unweigh to be able to change direction, you might want to help with a small (or larger) preliminary jump, but then there are some athletes which are not quite like everybody else ...
Now Edberg moving very smoothly on a constant level, with no apparent hops, it's something very interesting, which is related to what is mentioned in the book above at p. 196, on wide volleys:
---------
This far-away volley asks for a specific legwork. We advise players to move the center of gravity along a straight line. This is only possible with strong legs.
The same principle goes for the recovery footwork when from the site of the court. If you volley is returned by the opponent, you can't affford to waste any time or distance. Therefore, the center of gravity should stay as low as it is ... Wasting time in this situation can be seen in the case when the center of gravity does not stay at the same level, but first goes down and then goes up. Weak leg muscles are primarily a cause of this problem.
Now, certainly Edberg didn't have this problem of weak leg muscles