Skeletal Muscle Energy Metabolism in Women With Weight Loss and Ovarian and/or Endometrial Cancer With Weight Loss

Case group selection criteria: Inclusion Criteria: * Women aged 18 years old and more * Ovarian and/or endometrial cancer * weight loss related to cancer (weight loss \> 5% weight in one month or 10% in 6 months) * Indication to therapeutic surgery * Women affiliated to social security scheme * Women who can understand French and able to sign Informed consent Exclusion Criteria: * Unbalanced Diabetes * Chronic neuromuscular disorder * Any severe uncontrolled medical condition Control group selection criteria: Inclusion Criteria: * Women aged 18 years and more * Surgery Indication for a benign endometrial and/ or ovarian disease * Patient affiliated to social security scheme * Women who can understand French and able to sign Informed consent Exclusion Criteria: * Unbalanced Diabetes * Chronic neuromuscular disorder * Any severe uncontrolled medical condition