The present study has a prospective, longitudinal and observational character, will be performed with patients attending a private clinic specialized in the treatment of obesity and bariatric surgery. Patients to be analyzed should have a medical indication for bariatric surgery.
The patients will be selected for ten months and will be monitored for 12 months there are preoperative period, 3 months, 6 months and 12 months after surgery. Anthropometrical evaluation, biochemistry, polysomnography and sleep questionnaire (Epworth and Psqi) and midpoint sleep questionnaires will be performed to classify the chronotype for sleep pattern evaluation.
Study Type
OBSERVATIONAL
Enrollment
122
Cibele Aparecida Crispim
Uberlândia, Minas Gerais, Brazil
Weight in Kg
Anthropometric assessment will be evaluated using weight (kg).
Time frame: Baseline, 3 and 6 months
BMI in Kg/m²
Anthropometric assessment will be evaluated using BMI (kg/m²).
Time frame: Baseline, 3 and 6 months
Waist Circumference in Centimeters (cm)
Anthropometric assessment will be evaluated using waist circumference (cm)
Time frame: Baseline, 3 and 6 months
Hip Circumference in Centimeters (cm)
Anthropometric assessment will be evaluated using hip circumference (cm)
Time frame: Baseline, 3 and 6 months
Neck Circumference in Centimeters (cm)
Anthropometric assessment will be evaluated using neck circumference (cm)
Time frame: Baseline, 3 and 6 months
Metabolic Parameters - Fasting Glucose (mg/dl)
Metabolic parameters will be evaluated using fasting glucose (mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - Insulin (mg/dl)
Metabolic parameters will be evaluated using insulin (mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - Homeostasis Model Assessment for Beta-cell Function (HOMA - IR)
Values of metabolic parameters will be evaluated using Homeostasis model assessment for beta-cell function (HOMA - IR) according to the standard assessment measurement in mg/dl. Higher values reflect worse insulin resistance
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Time frame: Baseline and 6 months
Metabolic Parameters - Cholesterol (mg/dl)
Metabolic parameters will be evaluated using Cholesterol (mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - High Density Lipoprotein Cholesterol (HDL - mg/dl)
Metabolic parameters will be evaluated using High density lipoprotein cholesterol (HDL - mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - Low Density Lipoprotein Cholesterol (LDL - mg/dl)
Metabolic parameters will be evaluated using low density lipoprotein cholesterol (LDL -mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - Very Low Density Lipoprotein Cholesterol (VLDL - mg/dl)
Metabolic parameters will be evaluated using Very low density lipoprotein cholesterol (VLDL - mg/dl)
Time frame: Baseline and 6 months
Metabolic Parameters - Triglycerides (mg/dl)
Metabolic parameters will be evaluated using Triglycerides (mg/dl)
Time frame: Baseline and 6 months
Food Consumption - Calories (Grams/Day)
The food consumption was evaluated by two 24-h recalls at each evaluation moment (Baseline, third and sixth month), with one occurring on a weekday (applied in a private room with the interviewer and participant only) and the other one on the weekend (applied by phone, as done in previous studies).
Time frame: Baseline, 3 and 6 months
Food Consumption - Carbohydrate (Grams/Day)
The food consumption was evaluated by two 24-h recalls at each evaluation moment (Baseline, third and sixth month), with one occurring on a weekday (applied in a private room with the interviewer and participant only) and the other one on the weekend (applied by phone, as done in previous studies).
Time frame: Baseline, 3 and 6 months
Food Consumption - Total Fat (Grams/Day)
The food consumption was evaluated by two 24-h recalls at each evaluation moment (Baseline, third and sixth month), with one occurring on a weekday (applied in a private room with the interviewer and participant only) and the other one on the weekend (applied by phone, as done in previous studies).
Time frame: Baseline, 3 and 6 months
Food Consumption - Polyunsaturated Fat (Grams/Day)
The food consumption was evaluated by two 24-h recalls at each evaluation moment (Baseline, third and sixth month), with one occurring on a weekday (applied in a private room with the interviewer and participant only) and the other one on the weekend (applied by phone, as done in previous studies).
Time frame: Baseline, 3 and 6 months
Food Consumption - Monounsaturated Fat (Grams/Day)
The food consumption was evaluated by two 24-h recalls at each evaluation moment (Baseline, third and sixth month), with one occurring on a weekday (applied in a private room with the interviewer and participant only) and the other one on the weekend (applied by phone, as done in previous studies).
Time frame: Baseline, 3 and 6 months