If you want me to coach you personally to jump higher click here: If you want a FREE week of jump training click here: My name is Isaiah Rivera and I have the highest officially tested vertical on the ...
If you want me to coach you personally to jump higher click here: If you want a FREE week of jump training click here: My name is Isaiah Rivera and I have the highest officially tested vertical on the ...
Temptation is a powerful thing. Tell athletes to be careful doing Box Jumps and they'll attempt kangaroo-like leaps to imitate the 50-inch jumping sensations they found on YouTube. Box Jumps have ...
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