Athletes must have a certain degree of flexibility in order to attain their speed potential. If an athlete is too stiff then they won’t be able to open their stride and will suffer from improper movement mechanics. This is one of the issues I see over and over again with young and old athletes. Most don’t take the time required to improve their dynamic flexibility (it’s not really that much time) and their mechanics suffer as a result.
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Posted by fitnesshut 
Posted by fitnesshut 