Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. A jump rope is a ...
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How to avoid slipping when vertical jumping
Vertical jump tutorial by Jordan Kilganon. He uses Vertec to measure, and also explains why Game 1 Lows help avoid slipping, resulting in a safer, better jump! Hundreds arrested for DUI in Tennessee ...
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