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I had to miss a week of working out and after working out the following week my muscles were sore, which led me to ask what is the cause of that stiffness and discomfort. I found some interesting answers when I began to research this topic.
I had always believed that sore muscles are a result of lactic acid build up, this is not in fact the cause. I found this explanation in a CNN reporthttp://www.cnn.com/2014/08/04/health/muscle-soreness-myths/.
"During exercise, your body needs energy, and it breaks down molecules to get that. As a result of this metabolic process, your cells naturally become more acidic which makes your muscles feel like they're burning. But this isn't caused by lactate. Lactate is actually a by-product of the metabolic process and serves as a buffer and slows down the rate at which the cells become acidic.
"People produce lactate all the time, even at rest. It clears your system 30-minutes to one-hour after working out," says Mike.
A study in Clinics in Sports Medicine found that DOMS (delayed onset muscle soreness) is the result of microtrauma in the muscles and surrounding connective tissues, which causes inflammation. The reason that eccentric muscle contraction (think lowering a dumbbell back down in a biceps curl) is more likely to be the culprit is because it places a higher load on your muscles compared to concentric contraction.
"It's the active lengthening of muscle fibers under load. It's like you're pulling on a rope, and there's so much force that the rope starts to tear and pull apart," says Mike."
This sounds pain full but in fact some muscle trauma is needed to stimulate protein production and muscle growth.
To read more on this interesting subject follow this link:
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