Anyone who has ever stepped inside a gym has experienced that painful sore stiffness in the muscles not long after the workout is done. When exercising with weight our muscles are being bombarded by tension from eccentric contractions, they are lengthening and adapting to the stress which causes micro fractures in the muscle tissue that will up with fluid. Feeling of pain is for most individuals gets very intense 2 days after the workout. Muscles soreness can sometimes be so intense that you have to take a complete break from physical activity, this happens when you train with high intensity right from the start while your body is not is not
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