Evaluation of Effectiveness of Combining High Protein Intake With Early Physical Exercise During Critical Illness

Amino acid enteral and/or parenteral nutrition either enteral or parenteral to target a total protein delivery of 2.0g/kg/day.

The physical exercise intervention will be delivered by trained nursing staff, and started as close to the time of randomization as feasible (within 24hours of randomization). The intervention group will receive exercise sessions, for up to 20 min duration (as tolerated by patient).The implementation of physical exercise intervention will be protocolized to provide passive exercise early before weaning and shift to active exercise after weaning and also graduated resistance during each session and between daily sessions.