Muskelverk

Muskelverk refers to muscle pain characterized by a dull, aching soreness in muscles. It is most commonly experienced after unfamiliar or intense physical activity, or after eccentric contractions. The term is widely used in Norwegian and Danish medical language and is commonly translated as muscle ache or muscle soreness.

There are two main patterns. Acute onset muscle soreness occurs during or immediately after exercise. Delayed onset muscle soreness (DOMS) peaks about 24 to 72 hours after activity and typically resolves within a few days. DOMS is often more pronounced after unaccustomed or high-intensity training, especially with eccentric muscle actions.

The leading explanation for DOMS is microdamage to muscle fibers and the subsequent inflammatory response. Lactic acid buildup, once thought to cause soreness, is now considered a minor contributor at most. The degree of soreness often correlates with the intensity and novelty of the exercise rather than with a single mechanism.

Symptoms include local tenderness, stiffness, reduced range of motion, and sometimes temporary weakness. The pain usually improves with gentle movement and time. Seek medical advice if there is severe or swelling pain, redness, fever, persistent muscle weakness, or after a significant injury, or if soreness lasts longer than a couple of weeks.

Management focuses on supportive care: rest or light activity, hydration, adequate protein and overall nutrition, and sufficient sleep. Cold therapy may help in the first 24–48 hours after injury, followed by heat for stiffness. Gentle stretching, massage, and foam rolling can provide relief. Prevention involves gradual progression of training, proper warm-up and cool-down, and adequate recovery between workouts.