155 Activity Factors Injury Factors Activity Multiplying factor Condition Multiplying factor Lying still (sedated/asleep) 0.9-1.1 Medical: Inflammatory bowel disease/liver disease/pancreatic disease or similar 1.1-1.2 Lying still (conscious) 1.0-1.1 Surgical: Transplant/fistula or similar (minor surgery) 1.1-1.4 Bed rest (moving oneself in bed) 1.15-1.2 Cancer 1.2-1.4 Sitting in chair for long periods 1.1-1.3 Trauma/skeletal or head injury/minor burn or similar 1.3-1.4 Mobile (occasionally walking around ward) 1.15-1.4 Sepsis/major infection or similar 1.3-1.4 Standing for long periods 1.4-1.6 Major burns 1.4-1.6 Mobile (frequently walking around ward) 1.4-1.5 Critically ill with major surgery/trauma and mechanical ventilation (first week) 1.2-1.4 Receiving physical therapy 1.5-1.6 Critically ill with major surgery/trauma and mechanical ventilation (following 2-3 weeks) >1.6-1.8 Very mobile 1.6-1.8 Total Energy Expenditure (TEE) = REE x Activity Factor (AF) x Injury Factor (IF) The following multiplying factors represent a good starting point but can be modified based on the individual patient. 1 Reference: 1. Ferrie S, et al. Nutr Diet. 2007;64(3):192-199.