Morbid Obesity
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Being 20 years or older, have obesity with indication for bariatric surgery [participants who have a body mass index - BMI - > 50 kg/m²; participants who have BMI > 40 kg/m², with or without comorbidities; or participants with a BMI > 35 kg/m² and comorbidities (eg., high cardiovascular risk, diabetes mellitus, and/or difficult to control arterial hypertension, sleep apnea, degenerative joint diseases)]; be frequent in activities of Academia da Cidade (participation in at least one exercise class in the month before the beginning of data collect); have desire and willingness to participate in groups lasting six months or more, and be in the stages of change "preparation with high self-efficacy" or "action" or "maintenance" to reduce weight, according to the Trans-Theoretical Model (BRASIL, 2020b, in press).
Exclusion criteria
Exclusion criteria: Being pregnant and / or have cognitive difficulties that make it impossible to answer questionnaire
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Weight reduction using the percentage of weight change {% weight change = [(baseline weight - revaluation weight)/ baseline weight] x 100}. The weight reduction will be confirmed if the revaluation weight will be 7.5% less than the baseline weight.;Reduction in waist circunference (WC) using the delta [delta of WC = baseline WC - revaluation WC] and percentage of WC change {% WC change = [(baseline WC - revaluation WC)/ baseline WC] x 100}. The reduction in the waist circumference will be confirmed if any decrease in the measure at revaluation will be identified. | — |
Secondary
| Measure | Time frame |
|---|---|
| Evolution in the stages of changes, using an algorithm applied in baseline and revaluation. The evolution will be confirmed if progress in the intention to reduce weight in revaluation will be identified.;Increase in the self-efficacy using a questionnaire applied in baseline and revaluation. The increase will be confirmed if a higher confidence to reduce weight in revaluation will be identified.;Evolution in the decisional balance using a questionnaire applied in baseline and revaluation. The evolution will be confirmed if a higher identification of potential gains in behavior changes to reduce weight than potential losses in revaluation will be identified.;Increase in the consumption of culinary preparations using a questionnaire applied in baseline and revaluation. The increase will be confirmed if a higher consumption in revaluation will be identified.;Decrease in the consumption of ultraprocessed foods using a questionnaire applied in baseline and revaluation. The decrease will be confirmed if decreasing in consumption of ultraprocessed foods in revaluation will be identified. | — |
Countries
Brazil
Contacts
Universidade Federal de Minas Gerais - UFMG