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Primario
Secundario
Terciario
Dificultad
Beginner
Fuerza
Pull
Agarres
None
Mecánica
Compound

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Start in a plank position with the TRX straps adjusted to mid-calf length. Place your feet in the TRX stirrups.
Keep your abs engaged, and bring one knee towards your chest while keeping the other leg extended behind you.
Switch legs, bringing the opposite knee towards your chest while keeping your abs engaged and your back straight.