Subjective and Objective Changes in Muscle-stiffness

Inclusion Criteria: * Healthy participants aged 18-80 * Able to speak, read and understand Danish and/or English Exclusion Criteria: * Have performed resistance training on a regular basis during the past month * Experience of delayed onset muscle soreness (DOMS) during the last two weeks leading up to the first test session * Current use of analgesics * Any current neurological, musculoskeletal or mental illnesses that could interfere with the results. * Pregnancy * Lack of ability to cooperate