Complaints & connections · borters.ch
Fine tears in overloaded fibres — not damage but an adaptation that makes you stronger.
Also known as: DOMS · delayed-onset muscle soreness
Open in the tool — with search and all the links →This compilation is for information and replaces neither medical diagnosis nor treatment. If you have symptoms, see a doctor.
Muscle soreness is the familiar pulling ache that appears one to two days after unaccustomed or particularly intense movement — especially after braking loads such as walking downhill. The cause is tiny irritations and micro-injuries in the muscle fibres, triggering a mild inflammatory response. The old explanation involving “lactic acid” is considered outdated. Muscle soreness is completely harmless: it peaks after about one to three days and then clears on its own fully, without lasting damage. Nor is it a necessary sign of a good workout. It should be distinguished from an acute injury, which shows as a sudden, sharp pain during the movement.
Easy movement, a warm bath or sauna help; pause hard training.
Build load step by step — the soreness stays small.
It heals on its own; nothing needs “treating”.
With dark urine, severe swelling or pain that doesn’t fit soreness.
The pain starts six to twelve hours after the effort, peaks at twenty-four to forty-eight hours and is gone within five to seven days. The cause is very fine tears in the muscle fibres, not lactic acid — that is cleared within an hour. The same effort a second time within six to eight weeks causes distinctly less soreness; this protective effect lasts about eight to twelve weeks.
No treatment shortens muscle soreness. Anti-inflammatories take the pain and are suspected of damping the adaptation stimulus that training is actually about. Stretching before or after sport achieved nothing in comparisons. What prevents it is getting used to it: the same effort a second time within six to eight weeks causes distinctly less — and light movement the next day eases more than rest.
Move gently, shower warm, go easier for two to three days. Stretching before or after does not prevent it — that is well studied.
Appears 1-2 days after unaccustomed load and heals fully.
The cause is fine fibre irritation, not lactic acid.
Then it settles on its own — no cause for worry.
Sudden sharp pain DURING movement or severe swelling with dark urine → doctor.
Makes sure the muscle lets go again after tensing. A lack favours cramps, twitching and inner restlessness — and the blood value reflects the store poorly.
Sets the excitability of muscle and nerve. A low value causes weakness and cramps, a high one is dangerous for the heart rhythm — here one measures rather than guesses.
Sets off the tensing in the muscle in the first place. A low value causes tingling around the mouth and in the fingers and cramping of the hands.
With heavy sweating both are lost together. Drinking only water dilutes the sodium further — with long exertion salt belongs with it.
3–6 mg per kilogram an hour beforehand lower perceived effort and, in studies, the soreness afterwards. It does not make the micro-damage smaller, it dampens the perception.
20–40 g after the session deliver the building blocks for repair. On the soreness itself the effect in studies is weak — on muscle building over weeks it is clear.
500 mg twice daily around the session showed less muscle pain in small studies. Without piperine or a special formulation little arrives in the blood.
Effective when deficient; effects on sleep and stress plausible but moderate. Too much causes loose stool.
After unaccustomed effort cortisol and the inflammatory answer rise — the very answer that makes the muscle stronger. Suppressing it with anti-inflammatory painkillers takes part of the training effect away with it.
Strength training briefly raises testosterone and growth hormone — the rise lasts minutes to hours and does not explain the muscle building. What explains it is the response in the muscle itself.
20–25 g protein within a few hours after training supports repair. It changes little about the soreness itself — that comes from microtears and takes 3–5 days.
Studied at about 250–350 ml twice daily for 4–5 days around hard exertion; several small studies found less muscle pain. The amounts are high and the sugar content accordingly.
Light movement the next day helps more than rest — stretching beforehand does not prevent it.
Warmth loosens, cold dampens — both relieve, neither meaningfully shortens the healing.
From outside as a gel or diluted tincture, never on broken skin and not to be swallowed. Better studied for bruises than for muscle soreness itself.
As an ointment on the muscle, over days. Only the low-alkaloid cultivars are meant for the skin, and not over weeks — here too it is a question of amount and timeframe.
Smells like sports rub because it is the origin of it: almost pure methyl salicylate. That is aspirin on the skin — it goes with aspirin intolerance and on blood thinners, and never with children.
The classic mountain rub, warming and circulation-promoting. One to two per cent in a carrier oil is enough; undiluted it irritates the skin.
Rubbed in before the effort rather than after — traditionally used as a stimulating oil. With high blood pressure and epilepsy rosemary is used sparingly.