Inclusion Criteria:  individuals who were actively enrolled in Istanbul Esenyurt University those who agree to volunteer those between the ages of 18-24 non-smokers those with hyperkyphosis those with a low physical activity level  Exclusion Criteria:  those who have moderate or high levels of physical activity smokers those with a history of traumatic deformity in the thoracic spine those who have taken oral corticosteroids or antibiotics within one month those diagnosed with scoliosis of 20 ° and above those who have had cervical trauma, cervical spine surgery those with respiratory system disorders (asthma, etc.) those with the meningeal tumor, vertebral tumor, spinal cord tumor, and similar tumors individuals with systemic ailments(heart disease, diabetes, hypertension, etc.)