Sore muscles - what's behind the pain

Between training stimulus and regeneration: what really helps?

Many people are familiar with it: the pulling, stiff pain that spreads through the muscles one or two days after unusual exertion. Sore muscles are part of everyday life for many sports enthusiasts - for others it is more of a nuisance or even worrying. But what is the physiology behind it? And how can physiotherapy help to support regeneration and optimally prepare the body for new exertion?