Spraino ApS is a healthtech company founded on research exploring the biomechanical gains possible by controllng the friction between shoe and ground. This method can prevent serious ankle injuries and discomfort thereby enabling people and athletes to stay active. Spraino ApS also conduct research in other injuries and conditions that can benefit people and athletes as well as performance enhancement. Spraino was founded by Thor Grønlykke MD and former athlete in collaboration with university and hospital researchers.