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Originally Posted by OMG!WTF!
No. Arg. If you dont get it look it up. Concentric Only Training. There are several reasons for it. Less chance of injury is one. Engaging a different metabolic process and different muscle fibers is the main reason. You can lift more and more often with COT. Here's a link that dumbs it down a bit.
https://drjohnrusin.com/concentric-only-training/ |
Jesus people will make up a bunch of crap just to be a ###### and drop weights.
The only difference between concentric and eccentric muscle contractions is the lengthening vs shortening under a load. Eccentric causes more microtearing as it's higher load, hence more muscle soreness, hence more strength gains. The only difference in metabolic process would be an increase in the blood markers from said micro tearing.
And when it comes to deadlifts the vast majority of low back injuries occur in the concentric phase as muscles are stronger with eccentric contractions than concentric.
You can lower more weight than you can lift. Try it with a curl.