Variable Weight (VWT)
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The freediver descends with the help of a ballast weight and ascends using his own strength: arms and/or legs, either by pulling or not pulling on the rope. Variable weight is the first of both depth disciplines using a sled to go down in the water. Old sleds was descending “head first”, like presented in the famous Luc Besson’s movie Le Grand Bleu (The Big Blue), but new sleds descending “feet first” are now generalized.
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Variable Weight (VWT),
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