REMINDer - A Digital Environmental Enrichment Intervention

Prior treatment

• Regular prior experience (\> 1 hour/week) with tai chi, dance-movement, or other mind-body practices during the last 6 months
• Substance abuse (excessive smoking, alcohol consumption, drug abuse)

Other illness

• Disabilities that limit participation in online moment programs: Presence of physical ineligibility or mobility restrictions through a history of falls, not being able to walk, reliance on a walking aid
• Diagnosis of cognitive impairment and any type of dementia
• Diagnosis of motor disorders (e.g. Parkinson's disease, multiple sclerosis)
• History of cerebral disease (e.g. tumor)
• Severe neurological disorders (e.g. epilepsy)
• Diagnosis of psychiatric disorders (e.g. depression)
• Other chronic medical disorders that limit physical activity (e.g. advanced cardiac or respiratory disease, severe hypertension)

Other

• Regular rigorous physical exercise as defined by regular aerobic exercise (\> 1.5 hours/week) during the last 6 months
• Severe uncorrected auditory or visual impairments that limit the ability to listen to online instructions or to observe online movements
• Current participation in another research study

• Retired adults aged between 60 and 80 years
• Fluency in the German language
• Cognitively unimpaired, as assessed via the Six-Item Screener (SIS) ≥ 4 points (out of 6)
• Access to wireless internet connection and a digital device with speakers, screen, and camera at home
• Access to a personal email address
• Sufficient in-home space
• Availability throughout the study and its measurement time points
• Ability to provide written informed consent
• Spouses (must be in the same group and each participate in the intervention individually via their own device and in independent rooms; this fact is considered accordingly in the analyses)