Adaptação do gasto energético de repouso após restrição calórica de curto prazo em mulheres com obesidade mórbida

Autores

  • Andresa Toledo TRIFFONI-MELO Universidade de São Paulo
  • Vivian Marques Miguel SUEN Universidade de São Paulo
  • Cristina Maria Mendes RESENDE Universidade de São Paulo
  • Camila Bitu Moreno BRAGA Universidade de São Paulo
  • Rosa Wanda DIEZ-GARCIA Universidade de São Paulo

Palavras-chave:

Adaptação fisiológica, Restrição calórica, Metabolismo energético, Obesidade, Perda de peso

Resumo

Objetivo
Descrever as mudanças no gasto energético de repouso, na taxa de oxidação de substrato e na composição corporal em mulheres obesas mórbidas submetidas à restrição calórica de curto prazo.

Métodos
Este foi um estudo prospectivo com dez mulheres obesas com índice de massa corporal maior que 40 kg/m2 e idade entre 20-50 anos. As participantes foram hospitalizadas por sete dias consecutivos e receberam uma dieta hipocalórica convencional controlada de 1200 kcal/dia. Peso corporal, índice de massa corporal, circunferência abdominal, composição corporal, gasto energético de repouso e taxa de oxidação de substratos foram avaliados no início e no final do estudo.

Resultados
Reduções significativas no peso corporal (p=0,005), índice de massa corporal (p=0,005), circunferência abdominal (p=0,005), massa gorda (p=0,005) e massa livre de gordura (p=0,008) foram observadas no final do estudo. O gasto energético de repouso mostrou redução média de aproximadamente 124 kcal/dia (5%). A taxa de oxidação de substratos não apresentou mudanças estatisticamente significativas. Houve correlação importante apenas entre a redução do peso corporal e a redução da massa livre de gordura (r=0,753, p=0,012).

Conclusão
Houve uma resposta adaptativa do gasto energético de repouso com restrição energética em curto prazo em mulheres obesas mórbidas, apresentando redução média de 5% do gasto energético de repouso e correlação entre a perda de peso e a massa livre de gordura, o que indica a influência da mesma na diminuição do gasto energético de repouso. Portanto, a restrição calórica de curto prazo em mulheres obesas mórbidas leva à diminuição no gasto energético de repouso e na massa livre de gordura, sugerindo uma rápida adaptação do gasto energético.

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Publicado

05-04-2023

Como Citar

Toledo TRIFFONI-MELO, A., Marques Miguel SUEN, V., Mendes RESENDE, C. M., Bitu Moreno BRAGA, C. ., & Wanda DIEZ-GARCIA, R. (2023). Adaptação do gasto energético de repouso após restrição calórica de curto prazo em mulheres com obesidade mórbida. Revista De Nutrição, 28(5). Recuperado de https://seer.sis.puc-campinas.edu.br/nutricao/article/view/8245

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