ItaliaN Study With Tailored Multidomain Interventions to Prevent Functional and Cognitive Decline in Community-dwelling Older Adults

"The objectives of the dietary intervention will be in accordance with the principles of the Mediterranean diet. Weekly menus will be provided that ensure a balanced intake of the various nutrients, according to the objectives outlined in the study protocol, including a reduction in saturated fatty acids (with proportionately more mono- and polyunsaturated fatty acids), promotion of fiber sources and reduction of sugars, adequate protein and micronutrient intake. They will be accompanied by specific dietary patterns that can be individualized based on weight, comorbidities and personal preferences.~The need for weight loss or gain will be assessed on an individual basis. Dietary interventions will include group and individual sessions, and will be conducted by dietitians and nutritionists in a harmonized manner among the centers. The first meeting will be in-person and will be held at the subject's clinical center of enrollment. Follow-up will be conducted through online meetings."

The physical activity protocol will be geared to the principles of progressive and individualized loading, in group sessions supervised by a physical therapist within gyms for the strength and balance training portion, and in moderate to intense aerobic activities based on individual preferences and characteristics. The physiotherapist will conduct an individual assessment and develop personalized programs for all participants. Exercise sessions will be held 2-3 times a week.

Participants will be evaluated through a Cognitive and Psychological Assessment, which will allow measurement of each participant's cognitive functioning and well-being. Computerized cognitive training (CCT) using Brain HeadQuarter (BrainHQ) or similar software will be used as a cognitive intervention. The CCT includes game-based adaptive exercises that target attention, intelligence, memory, navigation, processing speed and social skills. The training will consist of 72 sessions for 24 weeks (about six months), at least three times a week.

"Participants will be referred for evaluation at dental hygiene offices. As part of the study, participants will also undergo anticholinergic burden calculation, screening for risk factors for oral diseases (smoking, alcohol), and reduction in the frequency of sugar intake through dietary intervention will be sought.~Participants will also undergo the Oral Health Assessment Tool rating scale."

"During the visits, participants' sleep will be assessed, either by clinical interview or by scales. Participants will also have the opportunity to assess their own sleep via wearable devices.~If sleep hygiene issues are detected, advice based on currently available scientific evidence will be provided. If, on the other hand, a suspicion of sleep disorders, including, for example, obstructive sleep apnea syndrome, restless legs syndrome, insomnia, or Rapid Eye Movement (REM) sleep disorder, is raised from the medical history, participants will be referred to the relevant specialists for diagnosis and treatment of such problems."

Measurements of blood pressure, weight, BMI, abdominal circumference, and advice on health promotion and healthy lifestyle will be provided. Recommendations on adherence to the Piano Nazionale di Prevenzione Vaccinale (PNPV) will also be provided.

Evaluation of prescriptive appropriateness (STOP\&START and Beers criteria) and calculation of anticholinergic burden (ACB calculator) will be carried out by a geriatrician, with rationalization of therapy and, where possible, de-prescribing.

"To encourage socialization, proposed activities will be carried out as much as possible in groups of 10-12 people, and outdoor group activities will be suggested on a biweekly basis (e.g., walks in parks). On a monthly basis, the nurse and psychologist will organize motivational and check-up meetings (in recreation centers/via telematics) in order to promote adherence to the protocol, collect questions and stimulate participants.~Social activity will also be implemented in the context of all interventions, for example through:~* Physical activity in groups or pairs, including dance or choir activities where possible~* Opportunities for further cognitive stimulation in groups through games (e.g., chess, cards, etc.)~* Proposal to cook, eat or shop together~* Group sessions with dietitian"

"Subjects in the control group will receive regular health advice in the same domains as the intervention group, via dedicated app and/or access to the dedicated portal on the Age-It website. Such advice and information will be timed to encourage adherence. In addition, participants randomized to the self-guided intervention will receive an initial counseling session of 30-60 minutes on all domains covered by the study, where guidelines for healthy diet, physical and cognitive activity, benefits of social activity, information on cardiovascular risk factors, as well as sleep, oral hygiene will be explained.~Subjects will therefore be treated as per normal clinical practice, albeit with the help of dedicated apps and counseling session."