NEW COURSE: MASTERING JUDO FOR JIU-JITSU BY ANDRE GALVAO
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Watch Relative Strength - 10% DB Back Extension

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Relative Strength - 10% DB Back Extension

Grappler's Code - Relative Strength • 1m 48s

Tags
grapplers code, anaerobic power, aerobic base/glycolytic capacity, local muscular endurance, relative strength, electrum performance

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