Why Are My Muscles Sore After Exercise?

Dear Davey,

After I exercise, my muscles get very sore. I understand that this can be beneficial but why is it happening?


daniel-garofali-workout-2What you’re experiencing is something called delayed onset muscle soreness (DOMS) and, as you noted, it’s actually a good thing.

Most often, individuals experience DOMS when trying something new. It could be a new routine, new exercise, new amount of resistance or so on. DOMS, as the name implies, occurs a day or two after the exercise. Injury-related soreness, on the other hand, occurs immediately and should be treated by a professional.

There’s still a lot that we don’t understand about DOMS. It was initially thought that DOMS was the result of lactic acid buildup from exercise. But the latest theory is that DOMS is the result of micro-tears in the muscle fibers caused by exercise. Though muscle damage sounds like a bad thing, these tiny tears are rebuilt stronger and bigger than before; this is the very process by which our muscles grow and strengthen.

Over time, DOMS can subside as your body adjusts and evolves. And it’s important to recognize that DOMS isn’t required for muscle growth and it’s not an indication of the effectiveness of an exercise routine. In other words, a lack of DOMS doesn’t mean you’re doing something wrong.

The treatments for muscle soreness are widely debated. Though stretching was once believed to prevent and alleviate soreness, recent studies are suggesting otherwise. There has been some success in alleviating soreness through massage or the use of a foam roller. Some individuals and trainers prefer active recovery. Or just plenty of rest to give your body time to recover, repair and rebuild.


About Davey Wavey

Davey Wavey is a certified personal trainer and YouTube sensation with more than 250 million video views. For Davey's fitness tips and secrets, sign up for his free monthly newsletter - or download any of his affordable and effective workout programs.


  1. Tomstone says:

    Davey is pretty much right, though he failed to mention a little detail. Having DOMS is not needed for muscle growth. If you do have it however you can be pretty sure that you DID indeed challange your Body. Soreness only disappears because of routine. As your Body adapts to the current challange you feel it less and less, if you give it something different it will have to adapt to something different and the soreness will be back.

    I usually take it as a sign to change my Training plan if I dont get sore at areas where I usually feel slight soreness every time. This happens to be around every 4 months, so it all seems to fit at least for me.

  2. If you wish for to obtain a great deal from this post then you
    have to apply such techniques to your won webpage.


  1. Rock hard Male Enhancement Review…

    Why Are My Muscles Sore After Exercise? | Davey Wavey Fitness…