www.velocitysp.com | Running fast and jumping high aren't just about how much strength you have in your legs. New research has shown that your ability to fully contract your core muscles and then rapidly relax them is just as important.
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Sit Ups DO NOT = Speed
on Tuesday, October 30, 2012
Sit Ups DO NOT = Speed Tube. Duration : 1.90 Mins.
www.velocitysp.com | Running fast and jumping high aren't just about how much strength you have in your legs. New research has shown that your ability to fully contract your core muscles and then rapidly relax them is just as important.
Tags:
www.velocitysp.com | Running fast and jumping high aren't just about how much strength you have in your legs. New research has shown that your ability to fully contract your core muscles and then rapidly relax them is just as important.
Tags:
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