Combined Activity and Cognitive Intervention for ICU Survivors

Telephone follow-up focused on information provision and brief counselling relating to their health conditions. They will also receive routine care from the healthcae system, including medical follow-ups with the clinical team, without structured out-patient rehabilitation services.

An 8-week, home-based, exercise with cognitive training intervention. 3 sessions per week, and 80 minutes per session.It comprises of 45 minutes of exercise training, a 5-minute break and 30 minutes of cognitive training.A blended training platform with supervised in-person home visits and a real-time supervised online and unsupervised selfpractice approach will be used to deliver the intervention, with the platform gradually shifted from home visits to unsupervised self-practice according to participants' physical functioning level. Family caregivers will be involved in the intervention, so that they can facilitate home-based training. Each intervention session will last for 80 minutes and comprise 45 minutes of exercise training, a 5-minute break and 30 minutes of cognitive training.

An 8-week, home-based, exercise-only intervention. Weeks 1 and 2 will be the induction phase, all sessions will be supervised with two home visit sessions and one online session in real-time. Weeks 3 to 6 will be the maintenance phase. For participants with a higher functional performance level (Level 3 or 4), the mode of delivery will change to one home visit and two online training sessions. Weeks 7 and 8 will be the consolidation phase, consisting of two online sessions and one unsupervised self-practice session. They will not receive any structured cognitive training.