RESUMO
Worldwide, the number of people aged 60 years and older steadily grows to a predicted 2 billion in 2050. Online interventions increasingly target lifestyle risk factors to promote healthy aging. The objective of this systematic review is to evaluate whether Internet mediated lifestyle interventions can successfully change lifestyle in people aged 50 and older. A PubMed search was conducted resulting in twelve articles, based on ten studies. The studies focused on physical activity, weight loss, nutrition, and diabetes. Nine studies used feasible interventions, with an average small to moderate effect size. The most important result is that there are multiple studies reporting positive lifestyle changes in an older population. On average, complex interventions, whether they present tailored or generic information, and online or offline comparison, are more effective than interventions with only one component. Internet mediated interventions hold great potential in implementing effective lifestyle programs, capable of reaching large populations of older persons at very low costs.
Assuntos
Comportamentos Relacionados com a Saúde , Internet , Estilo de Vida , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Ensaios Clínicos como Assunto/métodos , Ensaios Clínicos como Assunto/tendências , Cognição/fisiologia , Feminino , Humanos , Internet/estatística & dados numéricos , Internet/tendências , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Redução de Peso/fisiologiaRESUMO
BACKGROUND/AIMS: In population studies, different mild cognitive impairment (MCI) definitions have been used to predict dementia at a later stage. This study compared predictive values of different MCI definitions for dementia, and the effect of age on the predictive values was investigated. METHODS: This study was conducted as part of an ongoing longitudinal study into the determinants of cognitive aging, the Maastricht Aging Study. RESULTS: MCI best predicted dementia when multiple cognitive domains were considered and subjective complaints were not (sensitivity: 0.66, specificity: 0.78). Age had a strong influence on the sensitivity of MCI for dementia (age 60-70 years: sensitivity = 0.56; age 70-85 years: sensitivity = 0.70). CONCLUSION: The inclusion of multiple cognitive domains and participants aged 70 years and older leads to the best prediction of dementia, regardless of subjective complaints.
