Back squats should be at the same weight – about 75% of your 1RM. Warm up to the weight and then go at evenly spaced intervals: 0:00, 2:30, 5:00, 7:30, 10:00. If 100 double unders seems impossible, scale to 50. If that seems like too much, do 100 single unders. Score is rounds + reps....Read More
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