Clinical Research Directory

Inclusion Criteria: 1. Healthy female volunteers aged 20-45. 2. For the Pilates group: having practiced mat Pilates, reformer Pilates, or any equipment-based Pilates discipline for at least 6 months; attending regular 60-minute sessions at least twice a week with a certified instructor. 3. For the control group: having a sedentary lifestyle (weekly moderate physical activity time less than 150 minutes). 4. Objectively demonstrating sedentary status using the International Physical Activity Questionnaire (IPAQ); only participants in the "low physical activity" category will be included in the control group. 5. Having full cognitive ability to understand, follow, and execute all physical assessment instructions. 6. Willingness to voluntarily sign the informed consent form prior to the study. Exclusion Criteria: 1. History of any surgery involving the spine, pelvis, or lower extremities within the last 12 months prior to the study. 2. Currently pregnant or less than 6 months postpartum. 3. Diagnosed vestibular disorders or chronic clinical balance disorders. 4. History of neurological disease (MS, Parkinson's, etc.) or systemic metabolic disorder (diabetes, etc.). 5. Having a pain intensity greater than 2/10 on the visual analog scale (VAS) in the lower back or lower extremities. 6. Professional sports history or participation in other exercise programs exceeding 3 hours per week (excluding Pilates for the Pilates group). 7. Acute musculoskeletal injuries or acute illnesses that may affect energy levels on the day of evaluation. 8. Concurrent participation in other intensive core strengthening programs such as "advanced yoga" that may affect results.