You're properly motivated and or appropriately instructed you can keep pushing until you get to the point where your maximal effort is nonproducing sixty nine units of force sixty-nine use of force cannot lip seventy units of white and you have now reached  Nutra Pump muscular fatigue your muscular failure tries hard to made continued any additional movement it won't go because your force output does not exceed the weight selected you really want to quit now but if you're probably motivated or appropriately instructed you will continue to try to produce movement for an

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