Inclusion Criteria user scenario 1:  adult (≥ 18 years) diagnosed with stroke (as defined by the World Health Organization) and suffering from spatial neglect able to verbally answer questions ability to give informed consent  Exclusion Criteria user scenario 1:  severe cognitive disability (based on assessment of the healthcare professionals)  Inclusion criteria scenario 2:  adult (≥ 18 years) suffering from gait problems (e.g. frail elderly, Parkinson Disease, recovering from COVID-19) able to verbally answer questions ability to give informed consent  Exclusion Criteria user scenario 2:  severe cognitive disability (based on assessment of the healthcare professionals)  Inclusion criteria scenario 3:  adult (≥ 18 years) requires intensive use of an IV-stand during hospitalisation able to verbally answer questions ability to give informed consent  Exclusion Criteria user scenario 3:  severe cognitive disability (based on assessment of the healthcare professionals)