10/27/2025
'I'm sore after strength training so I'm done with it' - biggest mistake those who don't understand the process of body/muscle strengthening process make and why many quit prematurely.
Muscle soreness is caused by microscopic tears in muscle fibers from NEW or strenuous exercise, leading to an inflammatory healing response. It's a good thing because this healing process makes the muscles stronger and healthier than before. This type of soreness, known as delayed onset muscle soreness (DOMS), is a normal sign of muscle adaptation and growth, NOT AN INDICATION OF INJURY.
WHAT CAUSES MUSCLE SORENESS?
- Microscopic tears: When you challenge your muscles through exercise, you create tiny tears in the muscle fibers.
Inflammatory response: The body's natural response to these micro-tears is inflammation, which repairs the damage and causes the feeling of soreness.
- Novel stimuli: This often occurs when you perform a new exercise, increase the intensity or duration of your routine, or work muscles in a new way.
WHY IT'S A GOOD THING?
Muscle growth: The repair process rebuilds the muscle fibers, making them stronger and larger than they were before.
Increased strength: As your muscles heal and adapt, they become more resilient and capable of handling future stress.
Sign of progress: Soreness is a normal byproduct of your body adapting to your fitness routine, indicating your muscles are getting stronger.
DOMS is normal: Delayed onset muscle soreness typically appears 12 to 48 hours after a workout, and it's a sign that your muscles are adapting, not that you are injured.
It's different from injury: If you experience sharp pain, swelling, heat, redness, or bruising, it could be a sign of an actual injury, and you should seek medical advice.
Acute soreness: Soreness that happens during exercise is usually due to muscle fatigue and a buildup of lactic acid, which clears up relatively quickly.