Date	Event	Description
8 May 2021	New citation required and conclusions have changed	1. Authorship of the review has changed. 2. The conclusions of the review were revised to give a more appropriate emphasis to optimal strategies.
8 May 2021	New search has been performed	For this update, the main changes are: 1. Search update to March 2021. 2. Twenty‐one trials, including a total of 2470 participants, were newly included in this update. Six were in‐hospital trials and 15 were post‐hospital rehabilitation trials. 3. Study selection resulted in the exclusion of 18 trials, the placement of 21 trials in ongoing studies and two trials in studies awaiting classification. 4. Restructured list of outcomes. 5. Categorised exercise and physical training interventions using the ProFaNE classification. 6. Assessed four additional sources of bias. 7. Added four new subgroup analyses. 8. Enhanced descriptions of study populations and interventions. 9. Adopted new review format and updated Background, Discussion and Conclusion.