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Hamstrings lengthened for more athletic speed.


Two 16-year-old athlete and footballer perform a specific hurdles drill called 'Alternate straight legs crossover' discipline.


It has many athletic properties for sportsmen & women, including lengthening hamstrings, strengthening calves, Achilles tendons and improving agility and quickness.


Improve your speed with us now!

Sprintingspeed.com


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