Acute muscle pain – why after exercise?

Acute muscle pain - why after exercise?

Acute muscle pain

Acute muscle pain that we feel after intense physical exertion is called crepatura, or delayed muscle pain. It occurs and is felt especially sharply in the period from 1 to 3 days after physical exercises. The mechanism of this pain has not yet been fully studied.According to one version, the cause may be the production of lactic acid.

This is a toxin that appears as a result of the breakdown of glucose – the main source of energy in the human body.Another version is damage to muscle fibers. They are bundles of cells similar to threads – myofibrils. During intense exercise, these fibers tear, causing inflammation and pain.

As the damaged areas repair, each myofibril thickens, sometimes even splitting into two new cells. Thanks to this, muscle fibers become thicker and stronger.


Crepatura can last from 3 to 7 days. It is at this time that any physical activity should be temporarily stopped in order to reduce unpleasant sensations.

To restore muscles, it is important to get a good night’s sleep and eat food rich in proteins, carbohydrates and vitamins A, C, E. These are dairy products, beef, eggs, beans, citrus fruits, nuts, etc.

The rest time of different muscle groups is also different. The triceps recover the fastest, the back muscles the slowest.

Muscles need rest no less than exercise, because the growth of muscle fibers occurs precisely during the recovery period.

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