Multidomain Intervention for Reversal of Cognitive Frailty, Towards a Personalized Approach (AGELESS Trial): Study Design

Multidomain intervention for delaying aging in community-dwelling older adults (MIDA): study design and protocol

BACKGROUND

The exploration of interventions to delay aging is an emerging topic that promotes healthy aging. The multidomain intervention has the potential to be applied in the field of aging because it concentrates on the functional ability of older adults. There is currently no literature reporting on a multidomain intervention involving cognition, exercise and nutrition for delaying aging.

METHODS

The Multidomain Intervention for Delaying Aging in Community-dwelling Older Adults (MIDA) is a Zelen-design randomized controlled trial with a 6-month intervention duration. The multidomain intervention comprises cognitive training, exercise training, and nutritional guidance, delivered through both group sessions and individual family interventions. A total of 248 participants aged 60 to 85 years will be randomized to the intervention group or control group and followed up for 12 months. The primary outcome is the change in epigenetic age acceleration and pace of aging following the multidomain intervention. The secondary outcomes are the changes in frailty score and intrinsic capacity Z-score. Other outcomes include physical functions, body composition, aging biomarkers, inflammatory markers, haematology and biochemistry parameters, and lifestyle factors.

CONCLUSIONS

This study will explore the effects of the multidomain intervention on delaying aging in community-dwelling older adults. We aim to introduce a new approach to delaying aging and offer a practical multidomain intervention strategy for healthcare institutions.

The cost effectiveness of a multidomain intervention on physical, cognitive, vascular, dietary and psychosocial outcomes among community dwelling older adults with cognitive frailty in Malaysia: The AGELESS Trial

BACKGROUND

Cognitive frailty (CF) in older adults is a potentially reversible syndrome that may benefit from lifestyle-based multidomain interventions. This study assessed the AGELESS intervention's impact on cognitive, physical, vascular, dietary, and psychosocial outcomes, along with its cost-effectiveness, in a Low-Middle-Income Country (LMIC).

METHODS

The AGELESS randomized controlled trial recruited 106 older adults (above 60 years) from Klang Valley, Malaysia, with (pre)-CF (≥ 1 Fried's criteria and Clinical Dementia Rating scale = 0.5). Participants were randomly assigned to a 24-month multidomain intervention (physical activity, cognitive training, nutritional and psychological counselling, cardiovascular care) or control group (educational module). Primary outcomes, assessed at baseline, 12 and 24 months, included the modified Neuropsychological Tests Battery (mNTB) and physical performance measures. Intervention costs were calculated to determine Incremental Cost-Effectiveness Ratios (ICERs). An intention-to-treat analysis was conducted to account for attrition.

RESULTS

The trial occurred during the COVID-19 pandemic. Despite a 50% dropout rate, adherence among remaining participants was over 50% for all intervention components (range 53%-91%). The intervention led to significant improvements in selected parameters of cognitive function, physical performance, anthropometry, and dietary patterns (for all parameters, p < 0.05 for interaction time*group in repeat-measures ANOVA). The cost per participant was RM 1592.74 (≈USD 355.05) in the multidomain arm, and RM 488.21 (≈USD 108.83) in the control arm. The ICER computation indicated the 2-min step test as the most cost-effective measure (ICER RM 149.19 ≈USD33.26).

CONCLUSION

The AGELESS trial demonstrates that a multidomain, lifestyle-based intervention can improve cognitive and physical function in older adults with (pre)-CF. This cost-effective approach highlights CF as a modifiable health condition and supports its potential inclusion in health policy to promote healthy aging and reduce health risks in LMICs, where there is a larger prevention potential due to prevalent lifestyle-related risk factors.

Adherence and intensity in multimodal lifestyle-based interventions for cognitive decline prevention: state-of-the-art and future directions

Preventing dementia and Alzheimer's disease (AD) is a global priority. Multimodal interventions targeting several risk factors and disease mechanisms simultaneously are currently being tested worldwide under the World-Wide FINGERS (WW-FINGERS) network of clinical trials. Adherence to these interventions is crucial for their success, yet there is significant heterogeneity in adherence reporting across studies, hindering the understanding of adherence barriers and facilitators. This article is a narrative review of available evidence from multimodal dementia prevention trials. A literature search was conducted using medical databases (MEDLINE via PubMed and SCOPUS) to select relevant studies: nonpharmacological multimodal interventions (i.e., combining three or more intervention domains), targeting individuals without dementia, and using changes in cognitive performance and/or incident mild cognitive impairment or dementia as primary outcomes. Based on the findings, we propose future adherence reporting to encompass both participation (average attendance to each intervention component) and lifestyle change using dementia risk scores (e.g., the LIBRA index). Moreover, we provide an estimation of the expected intensity of multimodal interventions, defined as the ratio of the expected dose (i.e., the overall amount of the intervention offered specified in the trial protocol) to duration (in months). Adjusting the expected dose by average adherence enables estimation of the observed dose and intensity, which could be informative for identifying optimal dosage thresholds that maximize cognitive benefits across different populations. Finally, this article provides an overview of the determinants of adherence to multimodal interventions, emphasizing the need for improved adherence reporting to inform the design and implementation of precision prevention interventions.

TaiChi-MSS protocol: enhancing cognitive and brain function in MCI patients through Tai Chi exercise combined with multisensory stimulation

Background

The aging population in China is confronted with considerable challenges, with 14.71% of elderly individuals affected by mild cognitive impairment (MCI). The practice of Tai Chi has been demonstrated to enhance cognitive function, while sensory stimulation has been shown to facilitate neural activity. Nevertheless, the combined impact of Tai Chi and sensory stimulation on cognitive, sensory functions, and brain activation in older adults with MCI remains uncertain. This study aims to ascertain whether the integration of Tai Chi with sensory stimulation can facilitate more efficacious interventions for these outcomes.

Methods and analysis

The TaiChi-MSS (Tai Chi and Multisensory Stimulation for Cognitive Function) study is a multi-center, randomized controlled trial (RCT) conducted in Suzhou and Shanghai, enrolling 88 participants aged 60 years or older with MCI. Participants will be randomly assigned to one of four groups: Tai Chi, multisensory stimulation, Tai Chi combined with multisensory stimulation or control. The intervention will last 6 months, with follow-up assessments at 3, 6, and 9 months. Primary outcomes include cognitive and sensory assessments, assessed using the Montreal Cognitive Assessment (MoCA), Mini-Mental State Examination (MMSE), domain-specific cognitive tests, Pure Tone Audiometry (PTA), and Sniffin' Sticks Odor Identification Test. Secondary outcomes involve brain activation, measured through functional Magnetic Resonance Imaging (fMRI) scans. fMRI will be used to assess brain structure and connectivity changes, focusing on neuroplasticity. Data will be analyzed using mixed-effects models. The False Discovery Rate (FDR) will be the correction method for multiple comparisons to control for the expected proportion of false positives.

Ethics and dissemination

This study was approved by the ethics committee of Shanghai University of Sport (No. 102772023RT200). The results of this study will be disseminated in peer-reviewed journals and presented at academic conferences.

Development and Validation of a Nutritional Frailty Phenotype for Older Adults Based on Risk Prediction Model: Results from a Population-Based Prospective Cohort Study

OBJECTIVES

Malnutrition is generally studied to be involved in outlining hazard frailty trajectories, resulting in adverse outcomes. In view of frailty's multidimensional nature, we aimed to assess the contribution of nutritional items in existing frailty tools to adverse outcomes, and develop and validate a nutritional frailty phenotype based on machine learning.

DESIGN

A population-based prospective cohort study.

SETTING AND PARTICIPANTS

A total of 7641 older adults from the China Health and Retirement Longitudinal Study (CHARLS) were included as the training set to develop the nutritional frailty phenotype between 2011 at baseline and 2013 at follow-up, and 8656 older adults between 2013 at baseline and 2015 at follow-up were included for temporally external validation.

METHODS

The important predictors for 2-year incident adverse outcomes including all-cause mortality, disability, and combined outcomes were selected based on the least absolute shrinkage and selection operator. The nutritional frailty phenotype was developed using 2 machine learning models (random forest and eXtreme Gradient Boosting), and modified Poisson regression with the robust (sandwich) estimation of variance.

RESULTS

Slowness (walking speed), lower extremity function (chair-stand test), and upper limb function (grip strength) were selected as important predictors for each outcome using least absolute shrinkage and selection operator. For the training set, the models for predicting all-cause mortality [area under the receiver operating characteristics curves (AUCs), 0.746-0.752; mean AUCs of the 5-fold cross validation: 0.746-0.752] and combined outcome (AUCs, 0.706-0.708; mean AUCs of the 5-fold cross validation, 0.706) showed acceptable discrimination, whereas the models for predicting incident disability had approximately acceptable discrimination (AUCs, 0.681-0.683; mean AUCs of the 5-fold cross validation, 0.681-0.684). For external validation, all models had acceptable discrimination, overall prediction performance, and clinical usefulness, but only the modified Poisson regression model for predicting incident disability had acceptable calibration.

CONCLUSIONS AND IMPLICATIONS

A novel nutritional frailty phenotype may have direct implications for decreasing risk of adverse outcomes in older adults. Weakness and slowness play a major role in the progression of nutritional frailty, emphasizing that nutritional supplementation combined with exercise may be one of the feasible pathways to prevent or delay adverse outcomes.

Motivation, barriers and preferences of lifestyle changes among older adults with frailty and mild cognitive impairments: A scoping review of qualitative analysis

Lifestyle intervention has proven effective in managing older adults' frailty and mild cognitive impairment issues. What remains unclear is how best to encourage lifestyle changes among older adults with frailty and Mild Cognitive Impairment (MCI). We conducted searches in electronic literature searches such as PubMed, Scopus, Cochrane Reviews, ProQuest, and grey resources to find articles published in English between January 2010 and October 2023. This review focused on research using a qualitative study design. We extracted data on publication year, location, the aim of the study, study population, involved intervention, barriers, motivations, and preferences reported in the articles. Out of 5226 retrieved, 253 articles were selected after the deletion of duplicates, title, abstract screening, and. We included fourteen articles for final analysis at the end of the review process. The two main themes generated from this review are intrinsic and extrinsic factors in motivations and barriers to lifestyle changes. The most reported motivators were the perceived benefits of lifestyle intervention and self-efficacy. Among the obstacles participants face are perceived adverse effects of intervention, lack of knowledge, existing impairment (physical or mental), and social support. Lifestyle change motivations and barriers among older adults mainly were intrinsic factors such as the perceived benefit of the intervention, self-efficacy, knowledge, familial commitment, and existing impairments. There is a need to empower older adults to overcome the barriers with support from healthcare professionals, the community, and the family.

A qualitative study on the impact and participation in the AGELESS multidomain intervention: Insights from older adults with cognitive frailty and their caregivers

BACKGROUND

Cognitive frailty (CF) is a major precursor to dementia, and multidomain interventions have the potential to delay, prevent or reverse its early onset. However, the successful translation and sustainability of such interventions in real-life settings remain uncertain. In this study, we aimed to explore the insights of older adults with CF and their caregivers regarding the impact and participation in the AGELESS multidomain intervention.

METHODS

This qualitative study was conducted following the completion of AGELESS multidomain intervention. Semi-structured interviews covering domains such as perceptions, benefits, barriers, facilitators, and program preferences were conducted among 17 older adults with CF and 10 caregivers following the completion of the intervention. The data obtained were transcribed verbatim and analyzed using thematic analysis. Each transcript was reviewed and coded to identify prevailing themes derived from the interview data.

RESULTS

The analysis revealed five distinct themes: (1) impact of the program, (2) facilitators enhancing participation, (3) barriers hindering participation, (4) suggestions for improving participation and (5) challenges to adopt digital platforms. Based on the findings, the AGELESS multidomain intervention had a positive impact on the participants and their caregivers. It was noted that they showed preference for in-person sessions over virtual ones. The study highlighted key factors critical for successful participation, including diversity and inclusivity. It emphasized incorporating a multi-component, group-based approach with social aspects. The intervention should be people-centered, dignified, affordable, and customized to meet the unique needs of each participant.

CONCLUSIONS

The AGELESS multidomain intervention was well received by older adults with CF and their caregivers who participated in this study. Moving forward, it is recommended that future initiatives focus on identifying opportunities to implement existing evidence-based programs on a larger scale for the prevention of dementia in older adults.

Cognitive Frailty and Aging: Clinical Characteristics, Pathophysiological Mechanisms, and Potential Prevention Strategies

Frailty has been conceptualized not only as a physical disease, but also as a multidomain entity that encompasses a multimorbid status, disability, cognitive impairment, psychosocial risk factors, and even geriatric syndromes. In addition to physical ailments and depending on the diagnostic model. Standardized neuropsychological tests can identify cognitive deficiencies along with mild cognitive impairment, a pre-dementia stage characterized by memory and/or other cognitive domain impairments with relatively preserved instrumental activities of daily living. Hence, the possibility of cognitive frailty (CF), a construct that refers to physical frailty in concurrence with non-dementia cognitive decline, is proposed. The estimated prevalence of CF ranges from 10.3 to 42.8%. It is likely that the pathway to overt cognitive impairment, which does not yet involve physical function, begins with the asymptomatic early accumulation of progressive brain damage. Thus, timely detection strategies that target the initial phases of CF are warranted. The pathophysiological components of CF include dysregulation of the hypothalamic-pituitary axis stress response, imbalance in energy metabolism, impaired cardiovascular function, mitochondrial deterioration, and vascular age-related arterial stiffness. Changes that contribute to this disease can also occur at the cellular level, including overexpression of the renin-angiotensin-aldosterone system, activation of proinflammatory pathways, endothelial dysfunction, reduced nitric oxide production, and increased oxidative stress. Non-pharmacological interventions, that range from dietary and nutritional counseling to psychosocial therapy, are currently the main approaches. Both cognitive and physical training programs are considered to be the best researched and most useful multidomain interventions. Clinicians recognize CF as a valid concept that warrants prevention and treatment strategies supported by current research.

The efficacy of a mobile-based multidomain program on cognitive functioning of residents in assisted living facilities

Objectives

The purpose of this study is to test the efficacy of a mobile-based multidomain application, Silvia Program, on cognitive functioning of residents in assisted living facilities (ALFs).

Study design

Pilot randomized controlled trial using a two-group pretest-posttest design.

Methods

Twenty participants living in ALFs were randomized to a Silvia group or usual care group. Silvia group received mobile-based Multidomain lifestyle intervention for 50-60 min, twice weekly, for 12 weeks. We assessed the cognitive functioning using the Montreal Cognitive Assessment (MoCA).

Results

Results are that the total MoCA scores of the Silvia group showed significant improvement while the total scores of the control group declined.

Conclusion

The present study provides suggestive evidence for an overall positive effect of the use of the Silvia Program on the cognitive functioning among residents in ALFs.

Economic evaluations of technology-based interventions used to provide care support for people with mild dementia or mild cognitive impairment and their caregivers: A systematic review

BACKGROUND

The cost-effectiveness of interventions is a key issue owing to the limited resources of healthcare services.

OBJECTIVE

To conduct a systematic review of economic evaluations of technology-based healthcare interventions in care support for people with dementia or mild cognitive impairment (MCI) and their caregivers, and of the tools used to assess effectiveness and costs.

METHODS

The following databases were used: PubMed, National Health Service Economic Evaluation Database, and Health Technology Assessment. A total of 207 articles from 2012 to 2024 were identified and then screened.

RESULTS

Seventeen studies were included, of which nine were study protocols. Almost half (n = 8) the interventions were multicomponent. The most common components used in the interventions were cognitive stimulation, physical functioning and continuing support. Regarding the efficiency results of these interventions, only three studies provided a full economic evaluation. The most frequent tools in the economic evaluations used to measure effectiveness (measured in quality-adjusted life years) and costs were the European Quality of Life-5 Dimensions and Resource Utilization in Dementia instruments, respectively.

CONCLUSIONS

Most of the interventions evaluated were cost-effective. However, these results should be interpreted with caution, given the scarcity of the literature, and further economic evaluations of technology-based healthcare interventions for people with mild dementia or MCI care support and their caregivers are therefore needed. Additionally, a meta-analysis could not be performed due to the heterogeneity of the data.

Limited health literacy increases the likelihood of cognitive frailty among older adults

BACKGROUND

Cognitive frailty is a dual geriatric syndrome that is preventable with lifestyle changes. Lifestyle changes are influenced by literacy level. However, the association between limited health literacy (HL) and cognitive frailty (CF) is yet to be discovered.

OBJECTIVES

This study aims to determine the association between HL and CF among older adults.

METHODS

Data was collected between April 2021 to March 2022 in this cross-sectional study. Citizens aged 60 years and older who can understand Malay and English were selected through purposive sampling from the AGELESS Trial screening sample frame. HLS-M-Q18 was administered to determine HL and CDR, and Fried's Criteria were used to assess the CF status.

RESULTS

A total of 757 participants were included in the analysis. 68.2% of the total participants had a limited HL level. The prevalence of CF among older adults with limited HL was 48.2% as compared to those with adequate HL (28.2%) (p < 0.001). Based on the HLS-M-Q18 index scores, the robust group had a higher HL index score than those in the CF group: 36.1 (SD = 10.5) and 33.4 (SD = 8.6), respectively, p < 0.05. In binary logistic regression, limited HL, increasing age, lower income, lower education level and rural locality were associated with the increase of CF occurrence. Older adults with limited HL have 2.6 times higher odds of having CF.

CONCLUSION

Approximately two-thirds of multiethnic older adults in the study had limited HL, with those with limited HL has 2.6 times higher odds of having CF. These findings emphasize the importance of addressing HL to improve their health outcomes and well-being.

Joint trajectories of physical frailty and social frailty and associations with adverse outcomes: A prospective cohort study

BACKGROUND

We examined joint trajectories of physical frailty and social frailty as well as their associations with adverse outcomes.

METHODS

We conducted a prospective cohort study by using five waves of national data from China Health and Retirement Longitudinal Study (CHARLS 2011-2020), involving 4531 participants aged ≥60 years. We identified 4-year trajectories at three examinations from 2011 to 2015 using parallel process latent class growth analysis. Adverse outcomes were obtained from 2015 to 2020 across two subsequent waves. We calculated hazard ratios (HR) using Cox proportional hazard models. We also conducted analyses by gender.

RESULTS

Three joint trajectories were identified, including persistent absence of physical and social frailty (58.5 %), no physical frailty but social frailty (28.1 %), and persistent combination of physical and social frailty (13.4 %). Compared with persistent absence of physical and social frailty, no physical frailty but social frailty and persistent combination of physical and social frailty were associated with higher risk of instrumental activities of daily living (IADL) disability (HR = 1.182-2.020, 95 % CI: 1.014-2.416) and all-cause mortality (HR = 1.440-2.486, 95 % CI: 1.211-3.009). The persistent combination of physical and social frailty was also associated with ADL disability (HR = 2.412, 95 % CI: 1.999-2.911) and falls (HR = 1.410, 95 % CI: 1.196-1.662). Gender differences were observed in relationships between joint trajectories and adverse outcomes.

CONCLUSION

Community-dwelling older adults exhibit distinct joint trajectories and those with persistent combination of physical and social frailty experience greatest risk of incident adverse outcomes. Clinical and public health measures targeting physical or social frailty should account for both and be gender-specific.

Development and Evaluation of Content Validity and Acceptance of a Multidomain Intervention Module for Reversal of Cognitive Frailty Among Older Adults

Purpose

There is a limited availability of multidomain interventions that target cognitive frailty. Thus, the aim of the present study was to develop and evaluate the content validity and acceptance of the multidomain intervention module to reverse cognitive frailty among older adults (iAGELESS).

Patients and Methods

This study was conducted in two phases: Phase I included the development of the multidomain intervention module iAGELESS and evaluation of content validity, while Phase II consisted of evaluating the acceptance of the module among 18 healthcare and social care providers, 13 older adults with cognitive frailty, and 13 caregivers. Content validity index (CVI) was used to quantify the content validity. Respondents completed a questionnaire which consisted of information on sociodemographic, followed by module acceptance evaluation with respect to content, terminologies, and graphics. The data was then analyzed descriptively.

Results

A multidomain intervention module, iAGELESS was developed. The module was found to have appropriate content validity (overall CVI = 0.83). All the caregivers, 92% of older adults with cognitive frailty and 83% of healthcare and social care providers were satisfied with the overall content of the module. More than 50% of those who accepted the module had satisfactory consensus on the ease of the terminologies, length of sentences, pictures, information, color, and font size included in the module.

Conclusion

The iAGELESS module demonstrated good content validity and was well accepted, thus warranting its utilization in future studies to determine its effectiveness in reversing cognitive frailty among older adults.

Cardiovascular risk factors among older persons with cognitive frailty in middle income country

BACKGROUND

Cognitive frailty, characterized by the coexistence of cognitive impairment and physical frailty, represents a multifaceted challenge in the aging population. The role of cardiovascular risk factors in this complex interplay is not yet fully understood.

AIM

To investigate the relationships between cardiovascular risk factors and older persons with cognitive frailty by pooling data from two cohorts of studies in Malaysia.

METHODS

A comprehensive approach was employed, with a total of 512 community-dwelling older persons aged 60 years and above, involving two cohorts of older persons from previous studies. Datasets related to cardiovascular risks, namely sociodemographic factors, and cardiovascular risk factors, including hypertension, diabetes, hypercholesterolemia, anthropometric characteristics and biochemical profiles, were pooled for analysis. Cognitive frailty was defined based on the Clinical Dementia Rating scale and Fried frailty score. Cardiovascular risk was determined using Framingham risk score. Statistical analyses were conducted using SPSS version 21.

RESULTS

Of the study participants, 46.3% exhibited cognitive frailty. Cardiovascular risk factors including hypertension (OR:1.60; 95%CI: 1.12-2.30), low fat-free mass (OR:0.96; 95%CI: 0.94-0.98), high percentage body fat (OR:1.04; 95%CI: 1.02-1.06), high waist circumference (OR:1.02; 95%CI: 1.01-1.04), high fasting blood glucose (OR:1.64; 95%CI: 1.11-2.43), high Framingham risk score (OR:1.65; 95%CI: 1.17-2.31), together with sociodemographic factors, i.e., being single (OR 3.38; 95%CI: 2.26-5.05) and low household income (OR 2.18; 95%CI: 1.44-3.30) were found to be associated with cognitive frailty.

CONCLUSION

Cardiovascular-risk specific risk factors and sociodemographic factors were associated with risk of cognitive frailty, a prodromal stage of dementia. Early identification and management of cardiovascular risk factors, particularly among specific group of the population might mitigate the risk of cognitive frailty, hence preventing dementia.

Social activities in multidomain dementia prevention interventions: insights from practice and a blueprint for the future

Introduction

Social activities are important for health and act as a driver of cognitive reserve during aging. In this perspective paper, we describe challenges and outline future (research) endeavors to establish better operationalization of social activities in multidomain interventions to prevent dementia.

Body

We first address the lack of conceptual clarity, which makes it difficult to measure engagement in social activities. Second, drawing from our experience with the Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER), we discuss social activities in multidomain dementia prevention interventions. Using qualitative data from the Multimodal Preventive Trial for Alzheimer's Disease (MIND-ADmini), we reflect on participant experiences with social activities. Third, we address the potential and challenges of digital solutions in promoting social activities in interventions for dementia prevention. Finally, we share insights from a workshop on digital technology, where we consulted with individuals with and without cognitive impairment who have been involved in three European projects (i.e., EU-FINGERS, Multi-MeMo, and LETHE).

Discussion

Based on these insights, we advocate for research that strengthens and accelerates the integration of social activities into multidomain interventions for dementia prevention. We propose several ways to achieve this: (a) by conducting mixed methods research to formulate a broadly accepted definition and instructions to measure social activities; (b) by focusing on promoting engagement in social activities beyond the intervention setting; and (c) by exploring the needs and preferences of older adults towards digitally-supported interventions and co-design of new technologies that enrich in-person social activities.

Mapping the landscape: A bibliometric analysis of information and communication technology adoption by older adults with cognitive frailty or impairment

The adoption of information and communication technology (ICT) by older adults with cognitive frailty and impairment is beneficial to support aging in place and promote healthy aging. However, data are scarce regarding the use of ICT by this demographic in comparison with other age groups. This bibliometric analysis was aimed at systematically mapping the literature on ICT-related research on older adults with cognitive frailty and cognitive impairment to provide insights into research trends, patterns and knowledge gaps. Data were extracted from the Web of Science database, which identified 324 publications between 1980 and 2023. Performance analysis and science mapping were carried out using Microsoft® Excel, VOSViewer and Harzing's Publish or Perish. The analysis showed an upsurge in the research output trend over time. Notable journals, authors, citations, nations and research areas have been documented. Four key clusters were identified, including: (i) caregiver concern, support and involvement; (ii) technology as a tool for cognitive training and cognitive rehabilitation; (iii) cognitive improvement; and (iv) the use of technology for prevention and self-management. The findings derived from this analysis provide an appropriate reference for future researchers to bridge the gap in ICT-related studies among this population, and distinguish the relevant articles that are required for further investigation. These include the need for further long-term research, the incorporation of ICT-based approaches to counter cognitive frailty and the importance of multidomain telehealth interventions. Geriatr Gerontol Int 2024; 24: 251-262.

Prevalence of depression and clinical depressive symptoms in community-dwelling older adults with cognitive frailty

AIM

The present study determines the prevalence of depression and the extent of clinical depression symptoms among community-dwelling older adults with cognitive frailty and its associated factors.

METHODS

A total of 755 older adults aged ≥60 years were recruited. Their cognitive performance was determined using the Clinical Dementia Rating. Fried's criteria was applied to identify physical frailty, and the Beck Depression Inventory assessed their mental states.

RESULTS

A total of 39.2% (n = 304) of the participants were classified as cognitive frail. In this cognitive frail subpopulation, 8.6% (n = 26) had clinical depressive symptoms, which were mostly somatic such as disturbance in sleep pattern, work difficulty, fatigue, and lack of appetite. Older adults with cognitive frailty also showed significantly higher depression levels as compared with the noncognitive frail participants (t (622.06) = -3.38; P = 0.001). There are significant associations between depression among older adults with cognitive frailty and multimorbidity (P = 0.009), polypharmacy (P = 0.009), vision problems (P = 0.046), and hearing problems (P = 0.047). The likelihood of older adults with cognitive frailty who experience impairments to their vision and hearing, polypharmacy, and multimorbidity to be depressed also increased by 2, 3, 5, and 7-fold.

CONCLUSIONS

The majority of the Malaysian community-dwelling older adults were in a good mental state. However, older adults with cognitive frailty are more susceptible to depression due to impairments to their hearing and vision, multimorbidity, and polypharmacy. As common clinical depressive symptoms among older adults with cognitive frailty are mostly somatic, it is crucial for health professionals to recognize these and not to disregard them as only physical illness. Geriatr Gerontol Int 2024; 24: 225-233.

Association between maximal oxygen consumption and physical performance tests among older adults with cognitive frailty

INTRODUCTION

Cardiorespiratory fitness has an inverse relationship with cognitive impairment and frailty in older adults. Direct assessment of maximal oxygen consumption (VO2 max) is the gold standard to assess cardiorespiratory fitness. However, it is costly and requires a laboratory setting. Therefore, VO2 max estimation among older adults with cognitive frailty (CF) will allow the assessment of aerobic capacity, which is commonly overlooked due to the complexity of the test.

AIM

This study aims to determine the use of one of three physical performance tests (2-minute step, 2-minute walk, and 1-minute sit to stand) to effectively estimate cardiorespiratory fitness among older adults with CF.

METHODS

In this cross-sectional study, community-dwelling individuals aged 60 years old and above in Klang Valley were screened for CF. The participants performed three physical performance tests (2-minute walk, 2-minute step, and 1-minute sit to stand) followed by treadmill-based maximal exercise testing on another day.

RESULTS

A total of 32 older adults with cognitive frailty (mean age; SD: 67.1;4.7 years) participated in this study. Nearly half of them had hypertension (43.5 %), hypercholesterolemia (43.5 %), and multimorbidity (47.8 %). Among the endurance tests performed, only the 2-minute walk test independently predicted VO2 max by sex-specific with men (R2 = 0.58, p = 0.03) and women (R2 = 0.34, p = 0.01). The 2-minute walk test had good agreement with VO2 max (ICC = 0.77, 95 % CI: -3.1-2.4).

CONCLUSION

The 2-minute walk test is a valid tool for estimating cardiorespiratory fitness among older adults with CF. However, it should be further tested across a larger population.

Calcaneal broadband ultrasound attenuation predicts physical capability: EPIC-Norfolk prospective population-based study

BACKGROUND

Calcaneal ultrasound (broadband ultrasound attenuation - BUA), a marker of bone strength, may predict future physical capability and thus provide a strategy to identify individuals at risk of age-related deterioration of health. This study aims to determine if BUA can predict future physical capability among middle-aged and older adults.

METHODS

Summary performance scores (SPS), an objective quantification of physical capability, were devised using participants' measures of standing balance, gait speed and timed chair rises. Associations between BUA and SPS, measured at least six years apart, were investigated using univariable and multivariate sex-specific linear and logistic regression, adjusting for confounders.

RESULTS

5893 participants were included. In men and women, for every five points lower BUA, there was a 0.2-point decrease in SPS. In women, BUA less than one standard deviation below the mean was associated with low physical capability (defined as SPS 3-6); fully adjusted odds ratio (OR) (95 % confidence interval (CI)) 1.35 (1.01-1.84). No association existed among men; OR (95 % CI) 0.84 (0.59-1.19). Significant risk factors for low physical capability in men with baseline low BUA were: older age [OR 5.77]; high BMI [OR 2.85]; lower social class [OR 1.59]; low physical activity [OR 1.64]. Risk factors among women were: older age [OR 5.54]; high BMI [OR 2.08]; lower education [OR 1.42], low physical activity [OR 1.27]; steroid use [OR 2.05]; and stroke [OR 2.74].

CONCLUSION

BUA may predict future physical capability in older adults. With further validation, BUA could stratify individuals at risk of deterioration in physical health.

Modifiable Risk Factors for Brain Health and Dementia and Opportunities for Intervention: A Brief Review

Maintaining brain health and promoting healthy lifestyle strategies to manage modifiable risk factors is vital to ensuring well-being for all - not only for the individuals with memory challenges but also their family caregivers and professional providers. In this brief review paper, we highlight modifiable risk and protective factors and opportunities for dementia risk reduction (e.g., limited alcohol use and reduced exposure to air pollution, secondhand smoke, and excessive noise); provide an overview of the World-Wide FINGERS Network and its goal to adapt the original Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER) multidomain lifestyle approach in various settings to determine whether the protocol is effective across different populations in varied geographic, cultural, and economic settings and to optimize the model across a continuum of cognitive decline; and, comment on challenges and opportunities for researchers and clinicians including opportunities for risk reduction and intervention in primary care settings and the need to establish linkages across multiple levels of intervention to sustain behavior change in prevention, treatment, and care.

Predictors of incident reversible and potentially reversible cognitive frailty among Taiwanese older adults

BACKGROUND

Few studies emphasize on predictors of incident cognitive frailty (CF) and examine relationships between various gait characteristics and CF. Therefore, we conducted a 2-year prospective study to investigate potential predictors, including gait characteristics, of incident reversible CF (RCF) and potentially RCF (PRCF) among Taiwanese older adults.

METHODS

Eligible participants were individuals aged ≥ 65 years, who could ambulate independently, and did not have RCF/PRCF at the baseline. The baseline assessment collected information on physical frailty and cognitive measures, in addition to sociodemographic and lifestyle characteristics, preexisting comorbidities and medications, gait characteristics, Tinetti's balance, balance confidence as assessed by Activities-specific Balance Confidence (ABC) scale, and the depressive status as assessed by the Geriatric Depression Scale. The Mini-Mental State Examination (MMSE), Mattis Dementia Rating Scale, and Digit Symbol Substitution Test were used to evaluate cognitive functions. Incident RCF and PRCF were ascertained at a 2-year follow-up assessment.

RESULTS

Results of the multinomial logistic regression analysis showed that incident RCF was significantly associated with older age (odds ratio [OR] = 1.05) and lower ABC scores (OR = 0.97). Furthermore, incident PRCF was significantly associated with older age (OR = 1.07), lower ABC scores (OR = 0.96), the presence of depression (OR = 3.61), lower MMSE scores (OR = 0.83), slower gait velocity (OR = 0.97), and greater double-support time variability (OR = 1.09).

CONCLUSIONS

Incident RCF was independently associated with older age and lower balance confidence while incident PRCF independently associated with older age, reduced global cognition, the presence of depression, slower gait velocity, and greater double-support time variability. Balance confidence was the only modifiable factor associated with both incident RCF and PRCF.

Digital technology usage among older adults with cognitive frailty: A survey during COVID-19 pandemic

Objective

The research aimed to study digital divide by determining the usage of digital technology among older adults with cognitive frailty (CF) in Malaysia.

Methods

The dataset was obtained from the AGELESS trial screening phase conducted from October 2021 to March 2022, involving 476 community-dwelling Malaysian older adults (67.7 years old ± 6.1). Digital technology usage was assessed and CF was determined using Fried's criteria and Clinical Dementia Rating. A binary logistic regression was used to determine the sociodemographic factors associated with digital technology use among older adults with CF.

Results

The findings suggest a digital divide between older adults with CF and robust in Malaysia. CF individuals (72.1%) were less likely to utilise digital technology, mainly smartphone than robust older adults (89.6%). More than 70% of older people owned social media on their smartphones, namely, WhatsApp. The most frequent online activities in both groups were family interaction and obtaining current news. CF older adults were less likely to play games on their smart devices. Usage of digital technology was more common among male, younger age, attained formal education more than 6 years, had a higher monthly household income, and robust participants.

Conclusions

The usage of digital technology was inversely related to CF status. CF older adults were less likely to integrate digital technology into their daily living compared to robust even though they were familiar with it. The use of digital technology should be reinforced among female, advanced age, widowers/divorcees without formal education and those from lower- or middle-income statuses, and cognitively frail older people.

Current Evidence on the Association of Micronutrient Malnutrition with Mild Cognitive Impairment, Frailty, and Cognitive Frailty among Older Adults: A Scoping Review

Micronutrient malnutrition is thought to play an important role in the cause of cognitive impairment and physical frailty. The purpose of this scoping review was to map current evidence on the association between micronutrient deficiency in blood and mild cognitive impairment, frailty, and cognitive frailty among older adults. The scoping review was conducted based on the 2005 methodological framework by Arksey and O'Malley. The search strategy for potential literature on micronutrient concentration in blood and cognitive frailty was retrieved based on the keywords using electronic databases (PubMed, Cochrane Library, Google Scholar, Ovid, and Science Direct) from January 2010 to December 2021. Gray literature was also included in the searches. A total of 4310 articles were retrieved and 43 articles were incorporated in the review. Findings revealed a trend of significant association between low levels of B vitamins (folate and vitamin B12), vitamin D, vitamin A, vitamin E, omega 3 fatty acid, and albumin, and high homocysteine levels in blood with an increased risk of mild cognitive impairment among older adults. The results also indicated that low vitamin D levels, albumin, and antioxidants (lutein and zeaxanthin) in blood were significantly associated with frailty among older adults, while β-cryptoxanthin and zeaxanthin in blood were inversely associated with the risk of cognitive frailty. Vitamin D and antioxidants seemed to be targeted nutrients for the prevention of cognitive frailty. In conclusion, a wide range of micronutrient deficiency was associated with either mild cognitive impairment or frailty; however, little evidence exists on the dual impairment, i.e., cognitive frailty. This scoping review can serve as preliminary evidence for the association between micronutrient deficiency in blood and mild cognitive impairment, frailty, and cognitive frailty among older adults and prove the relevancy of the topic for future systematic reviews.

Telephone and Smartphone-Based Interventions for Cognitive and Cardio-Metabolic Health in Middle-Aged and Older Adults: A Systematic Review

PURPOSE

Dementia and cardio-metabolic diseases share many risk factors. Management of these risk factors could contribute to successful aging, including the prevention of cardio-metabolic disease and dementia. The increasing use of smartphones offers an opportunity for remote preventive interventions. We provided a systematic review of telephone and smartphone-based interventions targeting the prevention of cognitive decline, dementia cardio-metabolic diseases or their risk factors among adults aged over 50 years.

PATIENTS AND METHODS

We searched Pubmed and the International Clinical Trials Registry Platform for experimental studies. We used the Cochrane risk-of-bias tool (Version 2) for randomized trials or TREND (Transparent Reporting of Evaluations with Nonrandomized Designs) checklists to assess study quality for completed studies.

RESULTS

We analyzed 21 completed (3 for cognition, 18 for cardio-metabolic outcomes) and 50 ongoing studies (23 for cognition, 27 for cardio-metabolic outcomes). Smartphone interventions were used in 26 studies (3 completed, 23 ongoing). Other interventions involved telephone vocal support and text messaging. Few studies were at low risk of bias. There were heterogeneous cognitive and cardio-metabolic outcomes. The highest quality studies found no significant effects on cognition, and inconsistent results for HbA1c, blood pressure or physical activity. The lower quality-studies found effects on global cognition, working memory, memory and language and inconsistent results for clinical, biological or behavioral cardio-metabolic outcomes.

CONCLUSION AND IMPLICATIONS

Despite the large number of commercially available mobile health applications, the magnitude of the scientific evidence base remains very limited. Based on published studies, the added value of telephone and smartphone tools for the prevention of cardio-metabolic diseases, cognitive decline or dementia is currently uncertain, but, there are several ongoing studies expected to be completed in the coming years.

Exercise interventions for older people with cognitive frailty-a scoping review

BACKGROUND

As the global population ages, the issue of frailty in older people is gaining international attention. As one of the major subtypes of frailty, cognitive frailty is a heterogeneous clinical manifestation characterised by the co-existence of physical decline and cognitive impairment. The occurrence of cognitive frailty increases the risk of adverse health outcomes in older people, affecting their daily functioning and quality of life. However, cognitive frailty is a reversible state, and many interventions have been explored, with exercise interventions playing an important role in the non-pharmacological management of cognitive frailty. This study describes and summarises current exercise interventions for older people with cognitive frailty (including parameters such as mode, frequency and duration of exercise) and identifies the limitations of existing studies to inform future exercise interventions for older people with cognitive frailty.

METHODS

Using a scoping review approach, Chinese and English literature published in PubMed, Web of Science, Cochrane Library, Embase, China Knowledge Network, Wanfang Database, China Biomedical Literature Database (SinoMed) and Vipshop from April 2013, when the definition of cognitive frailty first appeared, to August 2021 was searched to select studies related to exercise interventions for this group, extract information from the included literature, and summarise and report the findings.

RESULTS

Nine RCT trial studies and one quasi-experiment study were included, for a total of 10 articles. The exercise modalities involved walking, brisk walking, Otago exercise, resistance exercise, balance training, flexibility training and Baduanjin, etc.; the intensity of exercise was based on individualised guidance and graded exercise intensity; the frequency of exercise was mostly 3-4 times/week; the duration of exercise was mostly 30-60 min/time; compared to the control group, the included studies showed statistically significant improvements in cognitive function, frailty status, and depression with the exercise intervention.

CONCLUSION

There is a paucity of evidence on exercise interventions for older people with cognitive frailty. The evidence provided in this study suggests that exercise interventions may be beneficial for older people with cognitive frailty. However, the existing studies suffer from small sample sizes, short intervention periods, inadequate monitoring of the entire exercise process, and non-uniformity in the assessment of exercise effects. More randomized controlled trials should be conducted in the future to explore the most effective, low-cost and simple interventions to meet the needs of the older people with cognitive frailty.

Global Research on Cognitive Frailty: A Bibliometric and Visual Analysis of Papers Published during 2013–2021

This study analyzed the current status, hotspots, and emerging trends of global research on cognitive frailty, in order to provide new research ideas for researchers. Articles and reviews related to cognitive frailty, published from 2013 to 2021, were retrieved from the Web of Science Core Collection (WoSCC) database on 26 November 2021. CiteSpace 5.8.R3 was employed for data analyses. A total of 2077 publications were included. There has been a rapid growth of publications on cognitive frailty research since 2016. The United States, Italy, England, and Australia have been the leading research centers of cognitive frailty; however, China has also recently focused on this topic. The National Center for Geriatrics and Gerontology, and Shimada H. were found to be the most prolific institution and author, respectively. Co-citation analysis identified 16 clusters, of which the largest was cognitive frailty. The keywords which occurred most frequently were “older adult”, followed by “cognitive impairment”, “frailty”, “risk”, “dementia”, “prevalence”, “mortality”, “health”, and “Alzheimer’s disease”. Burst keyword detection revealed a rising interest in cognitive frailty models. By analyzing these publications from recent years, this study provides a comprehensive analysis of cognitive frailty research.

Lifestyle modification and cognitive function among individuals with resistant hypertension: cognitive outcomes from the TRIUMPH trial

BACKGROUND

Resistant hypertension is associated with increased risk of cognitive decline, stroke, and dementia. Lifestyle modification has been suggested to improve cognitive function through its salutary effects on vascular function.

METHODS

Participants included 140 patients with resistant hypertension participating in the TRIUMPH trial. Participants were randomized to a cardiac rehabilitation-based lifestyle program (C-LIFE) or a standardized education and physician advice condition (SEPA). Participants completed a 45-min cognitive test battery consisting of tests of Executive Functioning and Learning, Memory, and Processing Speed. Biomarkers of vascular [flow mediated dilation of the brachial artery (FMD)], microvascular, and cerebrovascular function were also collected, in addition to weight, fitness, and ambulatory blood pressure.

RESULTS

Participants averaged 63 years of age, 48% women, 59% black, and obese [mean BMI = 36 kg/m 2 (SD = 4)]. Cognitive performance improved across the entire cohort during the 4-month trial [ t -scores pretreatment = 48.9 (48, 50) vs. posttreatment = 50.0 (49, 51), P  < 0.001]. Postintervention Executive Function/Learning composite performance was higher for participants in C-LIFE compared to SEPA ( d  = 0.37, P  = 0.039). C-LIFE intervention effects on Memory and Processing Speed were moderated by sex and baseline stroke risk, respectively ( P  = 0.026 and P  = 0.043 for interactions), such that males and participants with greater stroke risk showed the greatest cognitive changes. FMD [C-LIFE: +0.3% (-0.3, 1.0) vs. SEPA: -1.4% (-2.5, -0.3), P  = 0.022], and microvascular function [C-LIFE: 97 (65, 130) vs. SEPA: 025 (-75, 23), P  < 0.001] were improved in C-LIFE compared with SEPA, whereas cerebrovascular reactivity was not [C-LIFE: -0.2 (-0.4, 0) vs. SEPA: 0.1 (-0.2, 0.4), P  = 0.197). Mediation analyses suggested that increased executive function/learning was associated with reduced ambulatory SBP levels secondary to weight loss [indirect effect: B  = 0.25 (0.03, 0.71)].

CONCLUSION

Lifestyle modification individuals with resistant hypertension improves cognition, which appeared to be associated with reduced ambulatory SBP changes through weight loss. Cognitive improvements were accompanied by parallel improvements in endothelial and microvascular function.

The Flexibility of Physio-Cognitive Decline Syndrome: A Longitudinal Cohort Study

The mutual presence of impairments in physical and cognitive functions in older adults has been reported to predict incident disability, dementia, and mortality. The longitudinal transitions of phenotypes between these functional impairments, either individually or in combination, remain unclear. To investigate the natural course and prevalence of physical and/or cognitive impairments (CIs), we enrolled participants from a community-based population. Data were retrieved from the first (August 2011 and December 2012) and second wave (August 2013 and June 2015) of the I-Lan Longitudinal Aging Study (ILAS). All participants were classified into four groups: robust, mobility impairment (MI), CI, and physio-cognitive decline syndrome (PCDS). MI was diagnosed with weakness and/or slowness. CI was diagnosed if a subject met a cutoff below 1.5 standard deviations (SDs) of age-, sex-, and education-matched norms of any neuropsychological assessments. PCDS was combined with MI and CI. Our results showed that 38, 14, 30, and 18% of the participants were on the robust, MI, CI, and PCDS at the first wave, respectively. After 2.5 years, 17% robust, 29% MI, and 37% CI progressed to PCDS. In contrast, 33% of PCDS was reversed to non-PCDS. Predictors of conversion to PCDS included worse memory and language functions, older age, lower muscle mass, and the presence of diabetes. In PCDS, a stronger hand-grip strength, younger age, and better memory functions predicted reversion to non-PCDS status. In summary, we probed the transition of PCDS. The skeletal muscle mass/function and memory function are crucial factors associated with PCDS reversion or progression.

Efficacy and Sustainability of Diabetes-Specific Meal Replacement on Obese and Overweight Type-2 Diabetes Mellitus Patients: Study Approaches for a Randomised Controlled Trial and Impact of COVID-19 on Trial Progress

Meal replacement (MR) is widely used in weight and diabetes management programs due to its ease of compliance and handling. However, little is known about its impact on outcomes other than glycaemic control and weight loss. Furthermore, not many studies evaluate its cost-effectiveness and sustainability. This study aimed to evaluate the efficacy of a diabetes-specific MR for the weight reduction and glycaemic controls of overweight and obese T2DM patients, as compared to routine dietary consultation. Other health outcomes, the cost effectiveness, and the sustainability of the MR will also be evaluated. Materials and Methods: This randomised controlled clinical trial will involve 156 participants who have been randomised equally into the intervention and control groups. As a baseline, both groups will receive diet consultation. Additionally, the intervention group will receive an MR to replace one meal for 5 days a week. The duration of intervention will be 12 weeks, with 36 weeks of follow-up to monitor the sustainability of the MR. The primary endpoints are weight and Hemoglobin A1c (HbA1c) reduction, while the secondary endpoints are anthropometry, biochemical measurements, satiety, hormone changes, quality of life, and cost-effectiveness. The impact of the COVID-19 pandemic on study design is also discussed in this paper. This study has obtained human ethics approval from RECUKM (JEP-2019-566) and is registered at the Thai Clinical Trials Registry (TCTR ID: TCTR20210921004).

A Scoping Review for Usage of Telerehabilitation among Older Adults with Mild Cognitive Impairment or Cognitive Frailty

Older adults are vulnerable towards cognitive frailty that can lead to adverse health outcomes and telerehabilitation appears to be a potential platform to reverse cognitive frailty among older adults. The aim of this coping review is to identify the usage of telerehabilitation and its common platform of delivery among older adults with mild cognitive impairment (MCI) or cognitive frailty (CF). Articles published from January 2015 until October 2020 were selected. Out of the 1738 articles retrieved, six studies were identified. Two articles were randomized controlled trials, one was a pilot study and three were qualitative studies. The outcome suggests that telerehabilitation may improve the quality of life among participants as well as it can be a useful and supportive digital platform for health care. Some types of technologies commonly used were smartphones or telephones with internet, television-based assistive integrated technology, mobile application and videoconference. Telerehabilitation utilization in managing cognitive frailty among older adults is still limited and more research is required to evaluate its feasibility and acceptability. Although telerehabilitation appears to be implemented among older adults with MCI and CF, some social support is still required to improve the adherence and effectiveness of telerehabilitation. Future research should focus on the evaluation of acceptance and participants' existing knowledge towards telerehabilitation to achieve its target.

Prevalence and Risk Factors for Cognitive Frailty in Aging Hypertensive Patients in China

Hypertension is one of the most common chronic diseases and a major risk factor for stroke, myocardial infarction and cardiovascular death. Cognitive frailty is an important predictor of all-cause mortality and dementia in aging individuals. Hypertension is closely related to cognitive frailty and these two conditions often coexist in aging individuals. Few studies have explored the relationship between hypertension and cognitive frailty in the Chinese population. This study investigates the epidemiological characteristics of and factors related to cognitive frailty in aging Chinese patients with hypertension. In total, cognitive function, weakness, social support, depression and sociodemographic were assessed in 305 participants aged 60 and over. Univariate and multivariate logistic regression models were constructed. The prevalence of cognitive frailty in aging Chinese hypertensive patients was 9.8% (95% CI = 6.4–13.2%). After adjusting for confounding variables, logistic regression showed that the course of hypertension (6–10 years, OR = 8.588, 95% CI = 1.608–45.859;course of more than 10 years, OR = 9.020, 95%CI = 1.854–43.892), multimorbidity (OR = 11.231, 95% CI = 2.912–43.322), depression (OR = 6.917, 95% CI = 2.424–19.738) and social support (OR = 0.187, 95% CI = 0.071–0.492) were independently associated with cognitive frailty. The prevalence of cognitive frailty in aging patients with hypertension in China should not be ignored. The course of hypertension, multimorbidity and depression are the risk factors of cognitive frailty in the aging population and a better level of social support is the protective factor for cognitive frailty.