Stressors and Recovery Regulation on the Super-compensation Effect

Inclusion Criteria: * Athletes aged 18 or above with endurance-type competitive sports experience. For instance, athletes who have participated in track events of 400 meters or longer, marathons, road cycling, swimming, rowing, race walking, triathlons, orienteering, and similar competitive events. * A habitual training regimen of at least 6 hours per week. For instance, training three times a week for at least 2 hours each session. * Minimum of 3 years of training experience, such as being part of a school team or a specialized athlete. * No severe injuries within the past year. For instance, severe non-regenerative anemia, craniotomy due to cerebral aneurysm, acute myocardial infarction, severe hepatic cirrhosis, severe systemic lupus erythematosus nephritis, severe rheumatoid arthritis, severe head trauma, and similar conditions. * Not taking substances affecting athletic, physiological, and psychological performance. For instance, unauthorized drugs, prohibited substances, growth hormones like somatotropin and related substances, β2 agonists, hormone and metabolic modulators, diuretics, masking agents, stimulants, anesthetics, cannabis, adrenal corticosteroids, and similar substances. Exclusion Criteria: * Presence of an illness resembling symptoms of overtraining syndrome in the week before the start of the experiment. This includes primary viral illnesses, bacterial infections, associated inflammatory diseases, diabetes, or hyperthyroidism. * Suspected symptoms of hi…