188 CHAPTER 8 8.5 CONCLUSION In conclusion, VR-therapy using our prototype VR-game to train upper extremity functionality is feasible in the ICU and on the post-ICU hospital ward and is associated with an improvement in physical recovery in ICU-patients. Future studies should examine whether VR-therapy as a complement to conventional therapy improves muscle strength and function using larger sample sizes and randomised controlled trials. Furthermore, studies with long-term follow-up are needed to determine the extent to which gains in muscle strength and function are preserved and whether VR-therapy at home would be valuable to maintain and/or increase gains.
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