vr-based physical activity and reminiscence therapy

Conditions: Dementia; Neurodegenerative Disease; Mild Cognitive Impairment (MCI); Virtual Reality; Physical Activity; Alzheimer&#39;s Disease (AD); Cognitive Therapy

Summary: the goal of this clinical trial is to learn if active physical activity + virtual reality cognitive therapy (apavrct) works to slow the progression of ad cognitive decline in older adults. it will also learn about the physical effects and mental effects of the apavrct. the main questions it aims to answer are: does apavrct slow the progression of ad cognitive decline? (e.g., hk-moca, adas-cog) does apavrct improve physical function? (e.g., adl) does apavrct improve mental health? (e.g., gds-15, panas) does apavrct improve life satisfaction? does apavrct improve other cognitive or physical capacities? what issues and benefits do participants and stakeholders (e.g., families, caregivers, managers) have when taking apavrct? (e.g., npi-q) researchers will compare the intervention group (apavrct) to a control group (rehabilitation bike) to see if apavrct works to slow the progression of ad in cognitive decline. participants will: take apavrct (interventional group) or usual physical acitvity (control group) at least twice a week, 15 minutes for each session, for 12-16 weeks physiotherapies (assistants) and care professionals will do the intervention, research group will operate, observe, and assist the experiment. all the experiment processes will be recorded. visit the sites everyday for checkups and tests keep a diary of their symptoms, the number of times, and any essential information sites: around 3-5 nursing homes, under one institution. inclusion criteria: older adults in the setting who have the ability to pedal a rehabilitation bike.

the aim of study is to investigate the effect of active physical activity + virtual reality cognitive therapy (apavrct) on cognitive function in older adults with alzheimer's dementia and related dementias. the investigator hypothesizes the "physical activity + virtual environment brain stimulations' would slow the process of ad cognitive decline. the life satisfaction score in the intervention group would be higher than that of the control group. the investigator will conduct measurements on three aspects: the chinese version of the moca, physical functions, and emotional changes. data will be collected at baseline, 4-week, 8-week, 12-week after interventions for the two groups, and a follow-up measurement. in addition, the investigator will use some qualitative methods, such as focus group, interview, observation, during and after the first 3-month intervention to identify some issues during the intervention and to probe caregivers. the investigator will use both the ttest between the two groups (to compare cognitive decline progressions, and life satisfaction) and mixed methods to illustrate life satisfaction, especially among caregivers.

Eligibility criteria:
inclusion criteria: * older adults in the setting who have the ability to pedal the rehabilitation bike exclusion criteria: * individuals self-reporting or identified by stakeholders as unwilling or unsuitable to participate.