The fact that changes in plantar pressure during walking and in a fixed position in morbidly obese individuals and the relationship between postural oscillations and balance have not been fully elucidated creates a need in this area.

In this study, primary aim is to investigate the change in plantar foot pressure, balance parameters and the relationship between them in morbidly obese individuals compared to healthy individuals.

Inclusion Criteria:

• Individuals between the ages of 18-60
• BMI ≥ 40 kg/m2, morbidly obese individual
• No surgical operation in the last 6 months
• Non-obese healthy adult individuals will be included in the study as the control group.

Exclusion Criteria:

• Having a musculoskeletal disorder or systemic disease that will interfere with physical activity
• Presence of balance problems that will prevent physical activity
• Presence of psychiatric or neurological disease affecting cooperation and cognitive functions
• Presence of acute pain
• Presence of uncontrolled diabetes and hypertension
• Having any communication problems

Morbid obesity (grade 3 or severe obesity), a type of obesity, is defined as BMI equal to or more than 40 kg/m2, and chronic diseases such as increased mortality, diabetes mellitus, hypertension, sleep apnea, cardiovascular, kidney, and lung diseases. It is associated with increased risk of musculoskeletal system diseases and dyslipidemia (3,4).