13K views · 90 reactions | The Seated Leg Extension machine works your vastus lateralis: the largest part of your quad muscles. When using this machine sit up straight and keep your torso and core activated. Crunch Bowery Personal Trainer Victor recommends doing 15-20 reps for definition. #CrunchGetsPersonal | Crunch Fitness | Facebook
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13K views · 90 reactions | The Seated Leg Extension machine wo…
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