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Effects of dance on cognitive function in older adults: a systematic review and meta-analysis
- Authors:
- HEWSTON Patricia, et al
- Journal article citation:
- Age and Ageing, 50(4), 2021, pp.1084-1092.
- Publisher:
- Oxford University Press
Background: dance is a mind–body activity that stimulates neuroplasticity. We explored the effect of dance on cognitive function in older adults. Methods: we searched MEDLINE, EMBASE, CENTRAL and PsycInfo databases from inception to August 2020 (PROSPERO:CRD42017057138). Inclusion criteria were (i) randomised controlled trials (ii) older adults (aged ≥ 55 years), (iii) intervention—dance and (iv) outcome—cognitive function. Cognitive domains were classified with the Diagnostic and Statistical Manual of Mental Disorders-5 Neurocognitive Framework. Meta-analyses were performed in RevMan5.3 and certainty of evidence with GradePro. Results: we reviewed 3,997 records and included 11 studies (N = 1,412 participants). Seven studies included only healthy older adults and four included those with mild cognitive impairment (MCI). Dance interventions varied in frequency (1–3×/week), time (35–60 minutes), duration (3–12 months) and type. We found a mean difference (MD) = 1.58 (95% confidence interval [CI) = 0.21–2.95) on the Mini Mental State Examination for global cognitive function (moderate-certainty evidence), and the Wechsler Memory Test for learning and memory had an MD = 3.02 (95% CI = 1.38–4.65; low-certainty evidence). On the Trail Making Test-A for complex attention, MD = 3.07 (95% CI = −0.81 to 6.95; high-certainty evidence) and on the Trail Making Test-B for executive function, MD = −4.12 (95% CI = −21.28 to 13.03; moderate-certainty evidence). Subgroup analyses did not suggest consistently greater effects in older adults with MCI. Evidence is uncertain for language, and no studies evaluated social cognition or perceptual–motor function. Conclusions: dance probably improves global cognitive function and executive function. However, there is little difference in complex attention, and evidence also suggests little effect on learning and memory. Future research is needed to determine the optimal dose and if dance results in greater cognitive benefits than other types of physical activity and exercise. (Edited publisher abstract)
The impact of caregiver's depressive symptoms on trajectories of cognitive function in older adults with functional limitations
- Authors:
- JIANG Nan, SUN Qian, LOU Vivian W.Q.
- Journal article citation:
- International Journal of Geriatric Psychiatry, 36(8), 2021, pp.1284-1294.
- Publisher:
- Wiley
Objectives: Family caregivers are important to older adults' health, but few studies have examined how caregivers' mental health is associated with older adults' cognitive function. This study examined the trajectories of cognitive function of older adults and whether caregivers' depressive symptoms shape the pattern of cognitive function trajectories. Methods: This 6-year longitudinal sample consisted 1188 older adults aged ≥75 years with deficits in activities of daily living (ADL) and their family caregivers in Shanghai, China (Rounds 1–3). Cognitive function trajectories were identified based on an enhanced group-based trajectory modeling that accounted for nonrandom attrition. Multinomial logistic regression tested the association between caregivers' depressive symptoms and older adults' cognitive function trajectory. Results: Three trajectory groups were identified: a “newly onset” group (50.4%) had an increased risk of being cognitive impaired during the 6-year period; a “never” group (46.2%) remained cognitive active; and a “chronic” group was largely persistently cognitive impaired (3.4%). Caregivers' depressive symptoms increased the relative risk of having the “onset” or “chronic” versus “never” trajectory. Among the four dimensions of depressive symptoms, only somatic complaints were associated with a higher risk of the “newly onset” trajectory in 6 years. Conclusion: The progression of cognitive function among older adults with deficits in ADL followed three distinct trajectories during a 6-year period. Addressing the mental health of caregivers may prevent or delay progression of cognitive impairment among older adults. (Edited publisher abstract)
Cognitive training with modern board and card games in healthy older adults: two randomized controlled trials
- Authors:
- ESTRADA-PLANA Veronica, et al
- Journal article citation:
- International Journal of Geriatric Psychiatry, 36(6), 2021, pp.839-850.
- Publisher:
- Wiley
Objectives: The aim of this study was to assess the effectiveness of a cognitive intervention based on modern board and card games. Methods: We conducted two two‐arm parallel‐group, randomized controlled trials. The first one (pilot study) was nonblind. The second one (main study) was a double‐blind design. Participants (14 in a pilot study and 35 in the main study) were healthy older adults over 65 years old who were assisting to adult care institutions. In the pilot study, participants in the experimental group (n = 6) played modern board and card games which activated cognitive processes; whereas the control group (n = 6) was in the wait‐list condition. In the main study, participants in the experimental group (n = 12) also played modern board and card games; whereas the control group (n = 15) performed standardized paper‐and‐pencil cognitive tasks. Psychologists specialized in older‐people conducted all the interventions. In both studies, intervention sessions were bi‐weekly for 5 weeks. The outcomes of both studies were cognitive status and executive functioning, depressive symptomatology, and quality of life measures. All assessment and intervention sessions took place in their habitual centers. Results: In the pilot study, participants in the games intervention showed a significant improvement in semantic verbal fluency. In the main study, both interventions showed significant improvements in phonemic verbal fluency. Whilst board and card games maintained motor impulsivity control, paper‐and‐pencil tasks improved speed in an inhibition task. Conclusions: Modern board and card games could be an effective cognitive intervention to maintain some cognitive functions. (Edited publisher abstract)
The effects of the Covid-19 pandemic on the lived experience of diverse older adults living alone with cognitive impairment
- Authors:
- PORTACOLONE Elena, et al
- Journal article citation:
- Gerontologist, 61(2), 2021, pp.251-261.
- Publisher:
- Oxford University Press
Background and Objectives: Even before the COVID-19 pandemic, older adults with cognitive impairment living alone (an estimated 4.3 million individuals in the United States) were at high risk for negative health outcomes. There is an urgent need to learn how this population is managing during the pandemic. Research Design and Methods: This is a qualitative study of 24 adults aged 55 and older living alone with cognitive impairment from diverse racial/ethnic backgrounds. Participants’ lived experiences during the pandemic were elicited via 59 ethnographic interviews conducted over the phone either in English, Spanish, or Cantonese. Using a qualitative content analysis approach, interview transcripts were analyzed to identify codes and themes. Results: Qualitative analysis of transcripts revealed 5 themes: (a) fear generated by the pandemic, (b) distress stemming from feeling extremely isolated, (c) belief in misinformation, (d) strategies for coping during the pandemic, and (e) the importance of access to essential services. Discussion and Implications: This pandemic put a spotlight on the precarity and unmet needs of older adults living alone with cognitive impairment. Findings underscore the need to expand access to home care aides and mental health services for this population. (Edited publisher abstract)
Is there a dose–response relationship between musical instrument playing and later-life cognition? A cohort study using EPIC-Norfolk data
- Authors:
- WALSH Sebastian, et al
- Journal article citation:
- Age and Ageing, 50(1), 2021, pp.220-226.
- Publisher:
- Oxford University Press
Introduction: Musical instrument playing provides intellectual stimulation, which is hypothesised to generate cognitive reserve that protects against cognitive impairment. Studies to date have classified musicianship as a binary entity. This investigation draws on the dataset of the European Prospective Investigation of Cancer Norfolk study to examine the effect of frequency of playing on later-life cognition. Methods: We compared three categorisations of self-reported musical playing frequency in late mid-life (12-month period) against cognitive performance measured after a 4–11 year delay, adjusted for relevant health and social confounders. Logistic regression models estimated the adjusted association between frequency of musical playing and the likelihood of being in the top and bottom cognitive deciles. Results: A total of 5,693 participants (745 musicians) provided data on music playing, cognition and all co-variables. Classification of musicianship by frequency of playing demonstrated key differences in socio-demographic factors. Musicians outperformed non-musicians in cognition generally. Compared with non-musicians, frequent musicians had 80% higher odds of being in the top cognitive decile (OR 1.80 [95% CI 1.19–2.73]), whereas musicians playing at any frequency had 29% higher odds (95% CI 1.03–1.62). There was evidence of a threshold effect, rather than a linear dose–response relationship. Discussion: This study supports a positive association between late mid-life musical instrument playing and later-life cognition, although causation cannot be assumed. Musicians playing frequently demonstrated the best cognition. ‘Musicians’ are a heterogeneous group and frequency of music playing seems a more informative measure than binary classification. Ideally, this more nuanced measure would be collected for different life course phases. (Edited publisher abstract)
Cognitive reserve in elderly and its connection with cognitive performance: a systematic review
- Authors:
- FARINA Marianne, et al
- Journal article citation:
- Ageing International, 43(4), 2018, pp.496-507.
- Publisher:
- Springer
- Place of publication:
- New York
The cognitive reserve may delay impairments in the normal aging process, improving the resilience in cognitive functioning. The main objective of this study was to investigate, through a systematic review, which variables form the cognitive reserve. Furthermore, the association between the cognitive reserve and the cognitive functioning was also verified. Three judges searched for articles in PsycINFO, Pubmed and Scopus databases. The Cochrane recommendations, which offer directions for systematic reviews and meta-analysis, were utilized. Six surveys were gathered following the criteria of inclusion and exclusion. Studies indicate that gender, age, individual’s education, parents’ education, profession, reading activity, social engagement and humor are the main variables of the cognitive reserve. Education was the most assessed variable in the studies, followed by profession. It was concluded that the main cognitive reserve variable is education and that there is a significant correlation with a healthy cognitive maturation in the elderly. (Edited publisher abstract)
The relationship between age and neurocognitive and daily functioning in adults with hoarding disorder
- Authors:
- DOZIER Mary E., et al
- Journal article citation:
- International Journal of Geriatric Psychiatry, 31(12), 2016, pp.1329-1336.
- Publisher:
- Wiley
Objective: Given the increase in hoarding symptoms with age, there is a pressing need for understanding the clinical features as they relate to potential interventions for older adults with hoarding disorder (HD). The aim of the current investigation was to explore age-related differences in the level of functional and cognitive impairment in individuals with HD. Methods: The current study utilized the baseline assessments of 122 adults with HD. Age-related differences in the raw scores of psychiatric, cognitive, and daily functioning were analyzed using a series of multiple regression models controlling for the possible age-related differences in premorbid IQ. Results: The results suggested that older adults with HD may experience increased levels of impairment in skills related to executive functioning and everyday functioning when compared with younger adults with HD. Conclusions: Given these difficulties with neurocognitive functioning, older HD patients may require interventions that focus more on behavioural and functional skills, rather than focusing on changing thought processes. (Edited publisher abstract)
Chronic endurance exercise training prevents aging-related cognitive decline in healthy older adults: a randomized controlled trial
- Authors:
- MUSCARI Antonio, et al
- Journal article citation:
- International Journal of Geriatric Psychiatry, 25(10), October 2010, pp.1055-1064.
- Publisher:
- Wiley
This study investigated the effects of endurance exercise training (EET) on the cognitive status of healthy community-dwelling older people in Pianoro, northern Italy. One hundred and twenty healthy subjects, aged 65 to 74 years, were randomised into treatment and control groups. The treatment consisted of 12 months of supervised EET in a community gym. All participants were assessed both at baseline and after 12 months. Cognitive status was assessed by the Mini Mental State Examination (MMSE). Anthropometric indexes, routine laboratory measurements and C-reactive protein (CRP) were also assessed. The control group showed a significant decrease in MMSE score, which differed significantly from the treatment group scores. The odds ratio for the treated older adults to have a stable cognitive status after 1 year, as compared to the control group, was 2.74 after adjustment for age, gender, educational level and several other possible confounders. Blood pressure, body mass index, waist circumference and serum cholesterol did not differ significantly between the two groups, while CRP decreased only in the treatment group. The authors concluded that a 12-month EET intervention may reduce the onset of age-related cognitive decline.
Alcohol, dementia and cognitive decline in the elderly: a systematic review
- Authors:
- PETERS Ruth, et al
- Journal article citation:
- Age and Ageing, 37(5), September 2008, pp.505-512.
- Publisher:
- Oxford University Press
Evidence from the review and meta-analysis of results from 23 longitudinal studies of people aged 65 and older suggests that small amounts of alcohol may be protective against unspecified incident dementia (risk ratio 0.63) and Alzheimer’s disease (RR 0.57) but not vascular dementia (RR 0.82) or cognitive decline (RR 0.89). However, studies varied, with differing lengths of follow-up, measurement of alcohol intake, inclusion of true abstainers and assessment of potential confounders. The results should therefore be interpreted with caution and, given the ethical objections to randomised placebo-controlled trials in this area, it may never be possible to know for certainty the relationship between alcohol intake and dementia.
Prevalence of clinically significant depressive symptoms in an epidemiologic sample of community-dwelling elders with milder forms of cognitive impairment in Hong Kong SAR
- Authors:
- CHAN Sandra S. M., et al
- Journal article citation:
- International Journal of Geriatric Psychiatry, 23(6), June 2008, pp.611-617.
- Publisher:
- Wiley
Depression and cognitive impairment in later-life have great bearings on public health. The two conditions often co-occur and have mutual implications on short-term risk and long-term prognosis. A two-phase epidemiologic survey on the prevalence of dementia in elders aged 60 and over was conducted in Hong Kong in 2005-06. In the first phase, 6,100 randomly selected community dwelling elders were assessed with a Cantonese version of Mini-Mental State Examination (C-MMSE) and Abbreviated Memory Inventory for Chinese (AMIC), of whom 2,073 were screened positive and invited for second phase cognitive and psychiatric assessment. 35.5% of screen-positive subjects participated in Phase 2 assessment conducted by psychiatrists for diagnosis of dementia. Severity of dementia was determined using Clinical Dementia Rating Scale (CDR). Cornell Scale for Depression in Dementia (CSDD) and a structured bedside cognitive battery were also administered to each subject. The results showed that 1.7% of subjects with CDR 0.5 and 5.9% of subjects with CDR 1 had clinically significant depressive symptoms. Score on CSDD correlated positively with duration of cognitive symptoms, scores on CIRS and CMMSE in linear regression model. In a logistic regression model, male gender, duration of cognitive symptoms, CIRS and CMMSE was associated with increased risk for clinically significant depressive symptoms. It was concluded that in the sample, milder forms of cognitive impairment were associated with increased risk for depression in the presence of other risk factors such as male gender, higher physical illness burden and longer duration of cognitive symptoms.