Compliance with CBT referral in nursing home residents diagnosed with depression: Results from a feasibility study

Objectives

Patient-level factors that influence compliance with a recommendation for CBT in nursing home residents diagnosed with depression were identified.

Methods

Within a cluster-randomized trial on stepped care for depression in nursing homes (DAVOS-study, Trial registration: DRKS00015686), participants received an intake interview administered by a licensed psychotherapist. If psychotherapy was required, patients were offered a referral for CBT. Sociodemographic characteristics, severity of depression, loneliness, physical health, antidepressant medication, prior experience with psychotherapy, and attitudes towards own aging were assessed. A binary regression determined predictors of compliance with referral.

Results

Of 123 residents receiving an intake interview, 80 were recommended a CBT. Forty-seven patients (58.8 %) followed the recommendation. The binary logistic regression model on compliance with recommended CBT was significant, χ2(9) = 21.64, p = .010. Significant predictors were age (Odds Ratio (OR) = 0.9; 95 % Confidence Interval (CI) = 0.82, 0.99; p = .024) and depression (OR = 1.33; 95 % CI = 1.08, 1.65; p = .008).

Conclusion

Within the implemented setting compliance rate was comparable to other age groups. Future interventions should include detailed psychoeducation on the benefits of psychotherapy on mild depressive symptoms in older age and evidence-based interventions to address the stigma of depression. Interventions such as reminiscence-based methods or problem-solving could be useful to increase compliance with referral, especially in very old patients (80+). Language barriers and a culturally sensitive approach should be considered when screening residents.

Effectiveness of exercise interventions to improve long-term outcomes in people living with mild cognitive impairment: a systematic review and meta-analysis

Although exercise guidelines now recommend exercise for patients with MCI, the long-term effects of exercise in patients with MCI has not been reviewed systematically. The aim was to assess (1) the effectiveness of exercise and physical activity (EXPA) interventions in improving long-term patient-relevant cognitive and non-cognitive outcomes in people with mild cognitive impairment, (2) how well the included trials reported details of the intervention, and (3) the extent to which reported endpoints were in line with patient preferences that were assessed in patient workshops. Following PRISMA guidelines, we performed a systematic review and meta-analysis including randomized controlled trials. A total of ten studies were included after searching in six electronic sources from 1995 onwards. There is a trend that 6 + -month EXPA interventions improve global cognition 12 months after initiation. Evidence on long-term effects of EXPA interventions on non-cognitive health outcomes could not be meaningfully pooled and the individual studies reported mixed results. Workshop participants considered freedom from pain and stress, mood, motivation and self-efficacy to be important, but these outcomes were rarely addressed. Too little information is available on intervention details for EXPA programs to be replicated and confidently recommended for patients with MCI. PROSPERO registration in December, 2021 (CRD42021287166).

[Non-pharmacological Therapies of Dementia - an Update]

Non-pharmacological Therapies of Dementia - an Update Abstract: Non-pharmacological interventions for people with dementia are intended to improve quality of life and well-being, alleviate psychopathological and behavioral symptoms, and also offer caregivers support and opportunities to promote resilience. Against the background of the multiple failures in the field of pharmacological-therapeutic research, these approaches have become increasingly important. This is an up-to-date overview of the most important non-drug interventions for people with dementia and related recommendations for therapeutic use according to the current state of research and the recommendations of AWMF S3 guideline "dementia". The most important interventions from this therapeutic spectrum are cognitive stimulation to maintain cognitive functioning, physical activation, and creative therapeutic offers to promote communication skills and social participation. In the meantime, access to these diverse psychosocial interventions has also been supplemented by digital technology. What these interventions have in common is that they are based on the individual cognitive and physical resources of those affected, improve quality of life and mood, and promote participation and self-efficacy. In addition to psychosocial interventions, nutrition-related approaches ("medical food") and non-invasive neurostimulation have recently also shown potential in the context of non-drug therapy for people with dementia.

[Non-pharmacological interventions for people with dementia]

BACKGROUND

Non-pharmacological interventions for people with dementia are intended to improve quality of life and well-being, alleviate psychopathological and behavioral symptoms, and also offer caregivers support and opportunities to promote resilience. Against the background of the multiple failures in the field of pharmacological-therapeutic research, these approaches have become increasingly important.

OBJECTIVE

An up-to-date overview of the most important non-drug interventions for people with dementia and related recommendations for therapeutic use.

MATERIAL AND METHODS

Narrative review taking into account the current state of research and the recommendations of the Working Group of (German) Scientific Medical Societies (Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, AWMF) S3 guideline "Dementia".

RESULTS AND CONCLUSIONS

The most important interventions from this therapeutic spectrum include cognitive stimulation to maintain cognitive functioning, physical activation and creative therapeutic activities to promote communication skills and social participation. In the meantime, access to these diverse psychosocial interventions has also been supplemented by digital technology. What these interventions have in common is that they are based on the individual cognitive and physical resources of those affected, improve quality of life and mood, and promote participation and self-efficacy. In addition to psychosocial interventions, nutrition-related approaches ("medical food") and non-invasive neurostimulation have recently also shown potential in the context of non-drug therapy for people with dementia.

Effectiveness of exercise and physical activity interventions to improve long-term patient-relevant cognitive and non-cognitive outcomes in people living with mild cognitive impairment: a protocol of a systematic review and meta-analysis

INTRODUCTION

Mild cognitive impairment (MCI) is a clinical syndrome characterised by persistent cognitive deficits that do not yet fulfil the criteria of dementia. Delaying the onset of dementia using secondary preventive measures such as physical activity and exercise can be a safe way of reducing the risk of further cognitive decline and maintaining independence and improving quality of life. The aim is to systematically review the literature to assess the effectiveness of physical activity and exercise interventions to improve long-term patient-relevant cognitive and non-cognitive outcomes in people living with MCI, including meta-analyses if applicable.

METHODS AND ANALYSIS

We will systematically search five electronic databases from 1995 onward to identify trials reporting on the effectiveness of physical activity and exercise interventions to improve long-term (12+ months) patient-relevant cognitive and non-cognitive outcomes in adults (50+ years) with MCI. Screening procedures, selection of eligible full-texts, data extraction and risk of bias assessment will be performed in dual-review mode. Additionally, the reporting quality of the exercise interventions will be assessed using the Consensus on Exercise Reporting Template. A quantitative synthesis will only be conducted if studies are homogeneous enough for effect sizes to be pooled. Where quantitative analysis is not applicable, data will be represented in a tabular form and synthesised narratively. People living with MCI will be involved in defining outcome measures most relevant to them in order to assess in how far randomised controlled trials report endpoints that matter to those concerned.

ETHICS AND DISSEMINATION

Results will be disseminated to both scientific and lay audiences by creating a patient-friendly video abstract. This work will inform professionals in primary care about the effectiveness of physical activity and exercise interventions and support them to make evidence-based exercise recommendations for the secondary prevention of dementia in people living with MCI. No ethical approval required.

PROSPERO REGISTRATION NUMBER

CRD42021287166.

[Non-pharmacological interventions in dementia: an overview with special consideration of digital offerings]

Non-pharmacological interventions such as cognitive therapy, physical activity, and creative art approaches are important components of appropriate care for persons with dementia and their relatives. Although relationships and interpersonal interactions undoubtedly play an important role in all these activities, digital technologies have increasingly established themselves in this area in recent years. The following article describes non-pharmacological interventions for people with dementia (based on the German AWMF S3 dementia guideline), and additionally provides examples of selected digital approaches for this particular target group. As the aim of the interventions is to support persons with dementia in living autonomously and maintaining societal and cultural participation, all the interventions share a consideration for individual resources and the promotion of available potential. Empirical evidence on digital activities remains scarce, so it is not yet possible to make clear recommendations. When using them, it should therefore be borne in mind that although they may represent a valuable supplement, they can never replace human attention. Furthermore, limitations in their practical application, such as unfamiliarity when using digital technologies or excessive demands of cognitively limited users, as well as important ethical aspects (e. g., data protections, personality rights, dignity and self-determination in old age) should not be ignored.

Person-environment fit of environmental support provided during medical consultations with older patients

As some cognitive functions decline in old age, the ability to decide about important life events such as medical treatment is endangered. Environmental support to improve the comprehension of health-related information is therefore necessary. With a small-scale explorative approach, the present survey study aimed at investigating person-environment fit (PE-fit) of support provided during medical consultations. This fit was calculated by assessing the match between aids provided by five medical practitioners during medical consultations and aids most appreciated by the geriatric patients (N = 88). The results showed that the largest discrepancies of used and appreciated aids could be found concerning the opportunity to discuss decisions with relatives, the possibility to take notes, the use of objects, pictures and a keyword list. Female patients indicated a lower PE-fit. These findings highlight discrepancies between the use of specific aids and the wishes of patients and call for thoughtful use of aids during consultations with geriatric patients.

[Capacity to consent of people with dementia : Insights into the S2k AWMF guidelines 108-001]

People with dementia often require medical and nursing care and are regularly confronted with the need to make decisions in this respect; however, in practice uncertainty often exists as to whether a person with dementia is capable of providing consent, what procedures should be used to obtain informed consent, how to provide the necessary information and how capacity to consent can be assured. By providing structured practical recommendations, the S2k guidelines "Consent of persons with dementia to medical treatment" (coordinated by the Association of the Scientific Medical Societies of Germany, AWMF, registration number 108-001) provide a first attempt to summarize and update the relevant medical, legal, ethical and psychological requirements that should be satisfied in this respect. This article enables insights into the guidelines and an overview of the most important recommendations.

[Design and evaluation of a preclinical medical elective titled "Safety culture in healthcare: Every error counts!"]

INTRODUCTION

The World Health Organization has called for more importance to be attached to the subject of patient safety in medical studies. However, teaching staff are unsure when the right time is to include this topic in existing medical school curricula. The aim of this article is to present the learning objectives, design and evaluation of a two-day elective on patient safety offered in the preclinical phase of medical studies at the Faculty of Medicine, University of Frankfurt am Main. To the best of our knowledge, no existing elective on safety culture has been provided at such an early stage of medical studies in Germany.

METHODS

After defining learning objectives and teaching methods, the safety culture elective was offered in the winter term 2019/20. Based on a questionnaire, a quantitative and qualitative evaluation of the students' acceptance of the elective was carried out. We also sought to investigate whether group role-play was considered an effective means of communicating the teaching content. Acceptance and rejection of the elective were evaluated on a six-point Likert scale.

RESULTS

The resulting elective, consisting of topical input via film, an introductory speech, role-play and discussions, is presented. Nineteen students in the preclinical phase of their medical studies took part. Overall, the quantitative and qualitative evaluation delivered positive results (1.2±0.5), and the topic was perceived to very important. The students considered the didactic implementation and the learning objectives to be very good, and they became acquainted with different sources of error.

DISCUSSION

The preclinical elective would appear to be suitable for demonstrating the importance of medical safety to medical students and teaching them how to deal with the topic constructively. It can be viewed as a best-practice example for the development of comparable learning formats at medical faculties.

CONCLUSION

The results show that the preclinical phase is a suitable time to illustrate the importance of the subject of patient safety during medical studies.

[Capacity to consent of people with dementia : Insights into the S2k AWMF guidelines 108-001]

People with dementia often require medical and nursing care and are regularly confronted with the need to make decisions in this respect; however, in practice uncertainty often exists as to whether a person with dementia is capable of providing consent, what procedures should be used to obtain informed consent, how to provide the necessary information and how capacity to consent can be assured. By providing structured practical recommendations, the S2k guidelines "Consent of persons with dementia to medical treatment" (coordinated by the Association of the Scientific Medical Societies of Germany, AWMF, registration number 108-001) provide a first attempt to summarize and update the relevant medical, legal, ethical and psychological requirements that should be satisfied in this respect. This article enables insights into the guidelines and an overview of the most important recommendations.

Depression in the nursing home: a cluster-randomized stepped-wedge study to probe the effectiveness of a novel case management approach to improve treatment (the DAVOS project)

Background

Depression is the second most common psychiatric illness in old people. Up to 30% of nursing home residents have minor or major depression. Although depressive disorders in old age can be improved and even cured with adequate therapy, they often go unnoticed in nursing home residents and remain untreated. This highlights a striking deficit in health care and might result not only in lower quality of life among those concerned but also in poor physical functioning, premature mortality, and increased hospitalization rates.

Methods

The aims of the interdisciplinary research project DAVOS are to implement an innovative and stepped structural case management program to improve depression treatment for nursing home residents by a modularized intervention and to assess it in terms of its effectiveness. Intervention modules are in line with recommendations given by the German national treatment guidelines for depression (S3 guidelines). Ten nursing homes in Frankfurt, Germany, will participate in the project, which aims to recruit a study population of 380. The recruitment will continue throughout the trial (open cohort). Persons (>60 years) who live in a nursing home, have no medical diagnosis of dementia, and can provide their informed consent to participate are eligible for inclusion in the study. Residents with a clinical diagnosis of dementia, alcohol or substance-related disorders, or other serious psychiatric illnesses will be excluded. DAVOS is a controlled cluster-randomized study that employs a stepped-wedge design.

Discussion

Our main hypothesis is that the implementation of the intervention will lead to a decline in the prevalence of depression and a reduction in depression symptoms among the home residents. In addition, we expect the intervention to have a positive impact on secondary outcomes such as level of functioning, quality of life, and social participation. The project’s results can make an important contribution toward improving the health care of nursing home residents who have late-life depression.

Trial registration

DRKS, DRKS00015686, Oct. 10, 2018.

Art museum-based intervention to promote emotional well-being and improve quality of life in people with dementia: The ARTEMIS project

ARTEMIS (ART Encounters: Museum Intervention Study) is an art-based intervention designed especially for people with dementia and their care partners that involves a combination of museum visits and artistic activity. This paper reports the results of a randomized wait-list controlled study on the influence of the ARTEMIS intervention on the emotional state, well-being, and quality of life of dementia patients. People with mild-to-moderate dementia (n = 44) and their care partners (n = 44) visited the Frankfurt Städel Museum once a week on six pre-arranged occasions. The intervention consisted of six different guided art tours (60 minutes), followed by art-making in the studio (60 minutes). Independent museum visits served as a control condition. A mixed-methods design was used to assess several outcomes including cognitive status, emotional well-being, self-rated aspects of quality of life, and subjective evaluations by informal caregivers. In a pre-post-assessment, we found significant improvements in participants’ self-rated quality of life (t = −3.15, p < .05). In a situational assessment of emotional well-being immediately before and after each of the museum sessions, we were able to demonstrate statistically significant positive changes with medium effect sizes (dcorr = .74–.77). Furthermore, the total Neuropsychiatric Inventory score as well as the affective (depressed mood and anxiety) and apathy subscales were significantly lower after the ARTEMIS intervention (tNPI total = 2.43; tNPI affective = 2.24; tNPI apathy = 2.52; p < .05). The results show that art museum-based art interventions are able to improve the subjective well-being, mood, and quality of life in people with dementia. This promising psychosocial approach deserves further attention in future studies and consideration in community-based dementia care programs.

Feasibility and first results of a group program to increase the frequency of cognitively stimulating leisure activities in people with mild cognitive impairment (AKTIVA-MCI)

AKTIVA-MCI is a program for patients with mild cognitive impairment (MCI) that aims to enhance participation in cognitively stimulating leisure activities. Participation in cognitively stimulating activities seems to be a potential strategy for people with MCI delaying cognitive decline for a while. In total, 35 MCI patients were enrolled in the pilot study of whom 29 completed the whole program (16 female, 71.1±7.5 years; Mini Mental Status Examination score: 28±2.2). Daily activity protocols were used to measure the frequency of participation in cognitively stimulating activities during the program (12 sessions). Additional standardized psychometric tests and questionnaires were used to assess cognition, mood, and subjective memory decline. Analyses of the daily activity protocols showed that during the intervention participants increased the frequency of several cognitively stimulating leisure activities. Comparison of pre-post data indicates no changes in cognitive status, mood, and subjective memory decline. These findings indicate that the program is suitable for patients with MCI.

Effects of aerobic exercise on brain metabolism and grey matter volume in older adults: results of the randomised controlled SMART trial

There is mounting evidence that aerobic exercise has a positive effect on cognitive functions in older adults. To date, little is known about the neurometabolic and molecular mechanisms underlying this positive effect. The present study used magnetic resonance spectroscopy and quantitative MRI to systematically explore the effects of physical activity on human brain metabolism and grey matter (GM) volume in healthy aging. This is a randomised controlled assessor-blinded two-armed trial (n=53) to explore exercise-induced neuroprotective and metabolic effects on the brain in cognitively healthy older adults. Participants (age >65) were allocated to a 12-week individualised aerobic exercise programme intervention (n=29) or a 12-week waiting control group (n=24). The main outcomes were the change in cerebral metabolism and its association to brain-derived neurotrophic factor (BDNF) levels as well as changes in GM volume. We found that cerebral choline concentrations remained stable after 12 weeks of aerobic exercise in the intervention group, whereas they increased in the waiting control group. No effect of training was seen on cerebral N-acetyl-aspartate concentrations, nor on markers of neuronal energy reserve or BDNF levels. Further, we observed no change in cortical GM volume in response to aerobic exercise. The finding of stable choline concentrations in the intervention group over the 3 month period might indicate a neuroprotective effect of aerobic exercise. Choline might constitute a valid marker for an effect of aerobic exercise on cerebral metabolism in healthy aging.

Impact of Resveratrol on Glucose Control, Hippocampal Structure and Connectivity, and Memory Performance in Patients with Mild Cognitive Impairment

In healthy older adults, resveratrol supplementation has been shown to improve long-term glucose control, resting-state functional connectivity (RSFC) of the hippocampus, and memory function. Here, we aimed to investigate if these beneficial effects extend to individuals at high-risk for dementia, i.e., patients with mild cognitive impairment (MCI). In a randomized, double-blind interventional study, 40 well-characterized patients with MCI (21 females; 50-80 years) completed 26 weeks of resveratrol (200 mg/d; n = 18) or placebo (1,015 mg/d olive oil; n = 22) intake. Serum levels of glucose, glycated hemoglobin A1c and insulin were determined before and after intervention. Moreover, cerebral magnetic resonance imaging (MRI) (3T) (n = 14 vs. 16) was conducted to analyze hippocampus volume, microstructure and RSFC, and neuropsychological testing was conducted to assess learning and memory (primary endpoint) at both time points. In comparison to the control group, resveratrol supplementation resulted in lower glycated hemoglobin A1c concentration with a moderate effect size (ANOVA_RMp = 0.059, Cohen's d = 0.66), higher RSFC between right anterior hippocampus and right angular cortex (p < 0.001), and led to a moderate preservation of left anterior hippocampus volume (ANOVA_RMp = 0.061, Cohen's d = 0.68). No significant differences in memory performance emerged between groups. This proof-of-concept study indicates for the first-time that resveratrol intake may reduce glycated hemoglobin A1c, preserves hippocampus volume, and improves hippocampus RSFC in at-risk patients for dementia. Larger trials with longer intervention time should now determine if these benefits can be validated and extended to cognitive function.

Impact of leptin on memory function and hippocampal structure in mild cognitive impairment

Metabolic changes have been suggested to contribute to dementia and its precursor mild cognitive impairment (MCI), yet previous results particularly for the "satiety hormone" leptin are mixed. Therefore, we aimed to determine if MCI patients show systematic differences in leptin, independent of sex, adipose mass, age, and glucose and lipid metabolism, and whether leptin levels correlated with memory performance and hippocampal integrity. Forty MCI patients (20 females, aged 67 years ± 7 SD) were compared to 40 healthy controls (HC) that were pair-wise matched for sex, age, and body fat. Memory performance was assessed using the auditory verbal learning test. Volume and microstructure of the hippocampus were determined using 3T-neuroimaging. Fasting serum markers of leptin, glucose and lipid metabolism, and other confounding factors were assayed. MCI patients, compared with HC, showed lower serum leptin, independent of sex, age, and body fat (P < 0.001). Glucose and lipid markers did not attenuate these results. Moreover, MCI patients exhibited poorer memory and lower volume and microstructural integrity within hippocampal subfields. While leptin and memory were not significantly correlated, mediation analyses indicated that lower leptin contributed to poorer memory through its negative effect on right hippocampus volume and left hippocampus microstructure. We demonstrated that MCI is associated with lower serum leptin independent of sex, age, body fat, glucose, and lipid metabolism. Our data further suggest that inefficient leptin signaling could partly contribute to decreases in memory performance through changes in hippocampus structure, a hypothesis that should now be verified in longitudinal studies. Hum Brain Mapp 37:4539-4549, 2016. © 2016 Wiley Periodicals, Inc.

Vitamin B-12 concentration, memory performance, and hippocampal structure in patients with mild cognitive impairment

BACKGROUND

Low-normal concentrations of vitamin B-12 (VitB12) may be associated with worse cognition. However, previous evidence has been mixed, and the underlying mechanisms remain unclear.

OBJECTIVE

We determined whether serum VitB12 concentrations within the normal range were linked to memory functions and related neuronal structures in patients with mild cognitive impairment (MCI).

DESIGN

In a cross-sectional design, we assessed 100 amnestic MCI patients (52 women; age range: 50-80 y) with low- and high-normal VitB12 concentration (median split: 304 pmol/L) for memory functions with the use of the Auditory Verbal Learning Test. MRI was performed at 3 tesla (n= 86) for the estimation of the volume and microstructure of the hippocampus and its subfields as indicated by the mean diffusivity on diffusion-weighted images. With the use of a mediation analysis, we examined whether the relation between VitB12 and memory performance was partially explained by volume or microstructure.

RESULTS

MCI patients with low-normal VitB12 showed a significantly poorer learning ability (P= 0.014) and recognition performance (P= 0.008) than did patients with high-normal VitB12. Also, the microstructure integrity of the hippocampus was lower in patients with low-normal VitB12, mainly in the cornu ammonis 4 and dentate gyrus region (P= 0.029), which partially mediated the effect of VitB12 on memory performance (32-48%). Adjustments for age, sex, education, apolipoprotein E e4 status, and total homocysteine, folate, and creatinine did not attenuate the effects.

CONCLUSIONS

Low VitB12 concentrations within the normal range are associated with poorer memory performance, which is an effect that is partially mediated by the reduced microstructural integrity of the hippocampus. Future interventional trials are needed to assess whether supplementation of VitB12 may improve cognition in MCI patients even in the absence of clinically manifested VitB12 deficiency. This trial was registered at clinicaltrials.gov as NCT01219244.

SMART: physical activity and cerebral metabolism in older people: study protocol for a randomised controlled trial

Background

Physical activity exerts a variety of long-term health benefits in older adults. In particular, it is assumed to be a protective factor against cognitive decline and dementia.

Methods/design

Randomised controlled assessor blinded 2-armed trial (n = 60) to explore the exercise- induced neuroprotective and metabolic effects on the brain in cognitively healthy older adults. Participants (age ≥ 65), recruited within the setting of assisted living facilities and newspaper advertisements are allocated to a 12-week individualised aerobic exercise programme intervention or a 12-week waiting control group. Total follow-up is 24 weeks. The main outcome is the change in cerebral metabolism as assessed with Magnetic Resonance Spectroscopic Imaging reflecting changes of cerebral N-acetyl-aspartate and of markers of neuronal energy reserve. Imaging also measures changes in cortical grey matter volume. Secondary outcomes include a broad range of psychometric (cognition) and movement-related parameters such as nutrition, history of physical activity, history of pain and functional diagnostics. Participants are allocated to either the intervention or control group using a computer-generated randomisation sequence. The exercise physiologist in charge of training opens sealed and opaque envelopes and informs participants about group allocation. For organisational reasons, he schedules the participants for upcoming assessments and exercise in groups of five. All assessors and study personal other than exercise physiologists are blinded.

Discussion

Magnetic Resonance Spectroscopic Imaging gives a deeper insight into mechanisms of exercise-induced changes in brain metabolism. As follow-up lasts for 6 months, this study is able to explore the mid-term cerebral metabolic effects of physical activity assuming that an individually tailored aerobic ergometer training has the potential to counteract brain ageing.

Trial registration

NCT02343029 (clinicaltrials.gov; 12 January 2015).

Effects of a Group Program to Increase Cognitive Performance Through Cognitively Stimulating Leisure Activities in Healthy Older Subjects

To investigate the effects of leisure activities on cognitive performance of healthy older subjects, an innovative intervention program was developed. Frequent participation in cognitively stimulating activities (i.e., reading, playing chess, or playing music) is associated with reduced risk of dementia. AKTIVA (active cognitive stimulation – prevention in the elderly) is an intervention program designed to enhance cognitive stimulation in everyday life by increasing cognitive stimulating leisure activities. The present study determines the effects of AKTIVA on cognitive function, mood and attitude toward aging in a sample of older participants from the general population. Several measurement instruments were used including the Alzheimer’s Disease Assessment Scale (ADAS-Cog), the Trail-Making Test (TMT), and the Memory Complaint Questionnaire (MAC-Q). Initially, the sample consisted of 307 older persons (170 female, 72 ± 7 years). The intervention was evaluated with a randomized, controlled pre-post follow-up design. Participants were randomly assigned to one of three conditions: AKTIVA intervention (n = 126), AKTIVA intervention plus nutrition and exercise counseling (n = 84), no-intervention control group (n = 97). The AKTIVA intervention consisted of 8 weekly sessions and two booster sessions after a break of 4 months. Participation in the group program resulted in positive effects on cognitive function and attitude toward aging for subassembly groups. Older persons (≥ 75 years) showed enhanced speed of information processing (by TMT Version A) (F = 4.17*, p < .05); younger participants (< 75 years) showed an improvement in subjective memory decline (by MAC-Q) (F = 2.55*, p < .05). Additionally, AKTIVA enhanced the frequency of activities for leisure activities for subassembly groups. The results of this study suggest that the AKTIVA program can be used to increase cognitively stimulating leisure activities in the elderly. Further research is necessary to identify the long-term effects of this intervention particularly with respect to the prevention of dementia.

Cognitive intervention response is related to habitual physical activity in older adults

BACKGROUND AND AIMS

This study analysed the associations between physical activity and the effects of cognitive training on perceived cognitive functioning and life satisfaction in older adults.

METHODS

A sample of 114 intervention group participants (65-89 yrs) received weekly group sessions of cognitive stimulation for two months. This sample was stratified into groups according to habitual physical activity (PA) and matched with 45 controls. Participants completed the Memory Complaint Questionnaire (MAC-Q), Nuremberg Self-Rating List (NSL) and Alzheimer Disease Assessment Scale - Cognitive Subscale (ADAS-Cog) at three time-points (baseline, 2 months, and 6-month follow-up).

RESULTS

At baseline, groups did not differ in absolute MAC-Q, NSL or ADAS-Cog scores. NSL difference scores (follow-up score minus baseline NSL score) of the three cognitive intervention groups (>6.95h MVPA/ wk; 3.64-6.95h MVPA/wk; <3.64h MVPA/wk) and controls were -3.8±7.3, -2.5±11.0, +0.3±12.0 and +0.1±9.1 over 2 months, and -4.2±7.6, -4.0±14.0, -1.8±7.7 and +0.5±9.7 over 6 months, respectively. MAC-Q difference scores were -1.1±2.9, -1.1±3.4, -0.3±3.9 and +0.3±2.7 over 2 months, and -1.5±3.2, -0.8±2.9, -0.3±2.9 and +0.3±2.2 over 6 months. The groups significantly (p<0.05) differed on NSL and MAC-Q difference scores. Specifically, the more active groups differed from controls, and in some cases from the least active group. Groups did not differ on ADAS-Cog difference scores.

CONCLUSIONS

Our findings indicate a relation between amount of physical activity and the effects of a cognitive stimulation intervention on perceived cognitive functioning and life satisfaction. Physically more active persons may gain more benefit from cognitive stimulation than the physically less active.