Most Leg Extension Exercises With A 420-Pound Weight

United States

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Chicago, Illinois, United States / November 18, 2016

John B. performed three leg extension exercises with a 420-pound weight.

- legs must be fully extended for each rep
- must follow form of current world record holder
- must provide video evidence

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Tags: mostsportsexercisefitnessstrengthweightrepsleg extension

Comments
  • United States  Philip

    I have tried space waves 200 times and still can't get past the 9th puzzle level.

  • The Internet robert malek

    video not working. furthermore, without a crane scale, this is worthless. how do you know the true weight ?

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