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A comment on Ask HN: What things have richly rewarded the time invested in mastering them?. Parent comment

Re:Ask HN: What things have richly rewarded the time investe... by malmsteen on Wednesday October 03, 2018 @02:15PM (#18133068)
They provoke a "backpropagation" of the force you are exercising in the orthognonals of the machine work axis directly into your joints. Risk of injury at heavy weights. doesnt happen with free weights
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