activities of daily living Medicine 4 physical activity 4 frailty 3 machine learning 3 Alzheimer’s disease 2 COVID-19 2 aging 2 cardiac rehabilitation 2 child 2 elderly 2 family 2 health 2 human activity recognition 2 nutrition 2 older adults 2 pain 2 prevalence 2 qualitative 2 quality of life 2 survival 2 upper extremity 2 wearable devices 2 wearable sensors 2 ADHD 1 ADL 1 Barthel index 1 Bayesian network 1 Bluetooth beacons 1 C2-7 SVA 1