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Matsuishi Y, Hoshino H, Enomoto Y, Shimojo N, Ikeda M, Kotani M, Kobayashi S, Kido T, Mathis BJ, Nakamura K, Nakano H, Okubo N, Inoue Y. Verifying the Japanese version of the Healthy Aging Brain Care Monitor self-report tool for evaluating post-intensive care syndrome. Aust Crit Care 2023; 36:989-996. [PMID: 36934045 DOI: 10.1016/j.aucc.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 01/17/2023] [Accepted: 02/03/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Post-intensive care syndrome (PICS) requires the use of multiple assessment tools because it affects multiple domains: Cognitive, Functional, and Behavioural/Psychological. Therefore, this study translated the self-report (SR) version of the Healthy Aging Brain Care Monitor (HABC-M), spanning multiple domains, into Japanese and analysed its reliability and validity in a post-intensive care setting. METHODS Patients aged 20 years or older and admitted to the adult intensive care unit from August 2019 to January 2021 were included and surveyed by questionnaire. The 21-item Dementia Assessment Sheet for the Regional Comprehensive Care System was used to validate cognitive and physical aspects, and the Patient Health Questionnaire-9, the Generalized Anxiety Disorder-7, and the Post Traumatic Stress Disorder Checklist for Diagnostic and Statistical Manual of Mental Disorders 5th edition were used to validate emotional aspects. Reliability was assessed by Cronbach's alpha, and congruent validity by correlation analysis. Multivariate linear regression models were used to identify potential factors for PICS. RESULTS A total of 104 patients (mean age: 64 ± 14 years) with 3 median mechanical ventilation days (interquartile range: 2-5) were enrolled. The Cognitive domain of the HABC-M SR was highly correlated with memory and disorientation (r = 0.77 for each), while the Functional domain was highly correlated with Instrumental Activities of Daily Living Scale (r = 0.75-0.79). The Behavioural/Psychological domain highly correlated with the Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, and Post Traumatic Stress Disorder Checklist for Diagnostic and Statistical Manual of Mental Disorders 5th edition (r = 0.75-0.76). Multivariate analysis revealed longer ICU stays associated with lower Cognitive and Functional (p = 0.03 for each) domains and longer mechanical ventilation days with a lower Behavioural/Psychological domain (p < 0.01). CONCLUSION The translated Japanese HABC-M SR showed high validity for assessment of the Cognitive, Functional, and Behavioural/Psychological domains of PICS. Therefore, we recommend that the Japanese version of the HABC-M SR be routinely used in the assessment of PICS.
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Affiliation(s)
- Yujiro Matsuishi
- Neuroscience Nursing, St. Luke's International University, Tokyo, Japan.
| | - Haruhiko Hoshino
- Adult Health Nursing, Department of Nursing, International University of Health and Welfare, Narita, Japan
| | - Yuki Enomoto
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; University of Tsukuba Hospital, Department of Pediatrics, Tsukuba, Ibaraki, Japan
| | - Nobutake Shimojo
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Mitsuki Ikeda
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Misaki Kotani
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Shunsuke Kobayashi
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takahiro Kido
- University of Tsukuba Hospital, Department of Pediatrics, Tsukuba, Ibaraki, Japan
| | - Bryan J Mathis
- Medical English Communication Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kensuke Nakamura
- Department of Emergency and Critical Care Medicine, Hitachi General Hospital, 2-1-1, Jonan-cho, Hitachi, Ibaraki, 317-0077, Japan
| | - Hidehiko Nakano
- Department of Emergency and Critical Care Medicine, Hitachi General Hospital, 2-1-1, Jonan-cho, Hitachi, Ibaraki, 317-0077, Japan
| | - Nobuko Okubo
- Neuroscience Nursing, St. Luke's International University, Tokyo, Japan
| | - Yoshiaki Inoue
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Krafft J, Barisch-Fritz B, Krell-Roesch J, Trautwein S, Scharpf A, Woll A. A Tablet-Based App to Support Nursing Home Staff in Delivering an Individualized Cognitive and Physical Exercise Program for Individuals With Dementia: Mixed Methods Usability Study. JMIR Aging 2023; 6:e46480. [PMID: 37606974 PMCID: PMC10481225 DOI: 10.2196/46480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/26/2023] [Accepted: 07/05/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND The promotion of physical activity in individuals with dementia living in nursing homes is crucial for preserving physical and cognitive functions and the associated quality of life. Nevertheless, the implementation of physical activity programs in this setting is challenging, as the time and expertise of nursing home staff are limited. This situation was further exacerbated by the COVID-19 pandemic. Mobile health apps may be a sustainable approach to overcome these challenges in the long term. Therefore, the Individualized Cognitive and Physical Exercise-App (the InCoPE-App) was developed to support nursing home staff in delivering and implementing tailored cognitive and physical exercise training for individuals with dementia. OBJECTIVE This study aims to assess the usability of the InCoPE-App in terms of user performance and user perception in a laboratory setting using a mixed methods approach. METHODS Nursing home staff were encouraged to perform 5 basic tasks within the InCoPE-App. Their thoughts while using the app were captured by implementing a think aloud protocol. Then, participants completed the System Usability Scale questionnaire. The think aloud transcripts were qualitatively evaluated to unveil usability issues. All identified issues were rated in terms of their necessity to be fixed. Task completion (ie, success rate and time) and perceived usability were evaluated descriptively. RESULTS A total of 14 nursing home employees (mean age 53.7, SD 10.6 years; n=13, 93% women) participated in the study. The perceived usability of the InCoPE-App, as assessed by the System Usability Scale questionnaire, can be rated as "good." The main usability issues concerned navigation logic and comprehensibility of app content. CONCLUSIONS The InCoPE-App is a user-friendly app that enables nursing home staff to deliver and implement cognitive and physical exercise training for individuals with dementia in nursing homes. The InCoPE-App can be used with little training, even by people aged ≥50 years, who may have low digital literacy. To achieve sustainable use and high user satisfaction of the InCoPE-App in the long term, it should be implemented and evaluated in a field study.
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Affiliation(s)
- Jelena Krafft
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Bettina Barisch-Fritz
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Janina Krell-Roesch
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Sandra Trautwein
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Andrea Scharpf
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Alexander Woll
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany
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3
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van der Putten GJ, de Baat C. An Overview of Systemic Health Factors Related to Rapid Oral Health Deterioration among Older People. J Clin Med 2023; 12:4306. [PMID: 37445340 DOI: 10.3390/jcm12134306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/12/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
The oral health of older individuals can be negatively impacted by various systemic health factors, leading to rapid oral health deterioration. This paper aims to present an overview of the published evidence on systemic health factors that contribute to rapid oral health deterioration in older individuals, and to explore the implications of these factors for both general healthcare and oral healthcare provision. Older people are at risk of experiencing adverse reactions to medications due to multimorbidity, polypharmacy, and changes in pharmacokinetics and pharmacodynamics. Hyposalivation, a significant side effect of some medications, can be induced by both the type and number of medications used. Frailty, disability, sarcopenia, care dependency, and limited access to professional oral healthcare can also compromise the oral health of older people. To prevent rapid oral health deterioration, a comprehensive approach is required that involves effective communication between oral healthcare providers, other healthcare providers, and informal caregivers. Oral healthcare providers have a responsibility to advocate for the importance of maintaining adequate oral health and to raise awareness of the serious consequences of weakened oral health. By doing so, we can prevent weakened oral health from becoming a geriatric syndrome.
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Affiliation(s)
- Gert-Jan van der Putten
- Orpea Dagelijks Leven, 7327 AA Apeldoorn, The Netherlands
- Department of Dentistry, Radboud University Nijmegen Medical Centre, 6525 GA Nijmegen, The Netherlands
| | - Cees de Baat
- Fresh Unieke Mondzorg, 2411 NT Bodegraven, The Netherlands
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4
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Zeng Y, Wang J, Cai X, Zhang X, Zhang J, Peng M, Xiao D, Ouyang H, Yan F. Effects of physical activity interventions on executive function in older adults with dementia: A meta-analysis of randomized controlled trials. Geriatr Nurs 2023; 51:369-377. [PMID: 37127013 DOI: 10.1016/j.gerinurse.2023.04.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND To date quantitative meta-analysis with large samples to investigate the effects and potential moderators of physical activity (PA) on executive function (EF) in older adults with dementia is insufficient. Therefore, we conducted this meta-analysis. DESIGN Meta-analysis of randomized controlled trials (RCTs). PARTICIPANTS Old people with Alzheimer's disease (AD) or related dementia of varying types and severity as the primary diagnosis. METHODS PubMed, Web of Science, the Cochrane Library and Embase databases were searched for relevant studies published from 01 January, 2010 to 01 March, 2022. The results of executive function were reported in all RCTs. Random-effects meta-analysis was used to calculate the size of effects. Subgroup analyses of three moderators (including the specific sub-domains of EF, exercise prescription variables, and sample characteristics) were performed. RESULTS Eighteen RCTs were included with a combined sample size of 1366. Overall, PA interventions improved overall EF (standardized mean difference [SMD]=0.23, 95% confidence interval [CI] 0.05 to 0.41, p<0.05). The EF sub-domain "planning" was significant moderator (SMD=0.31, 95%CI 0.11 to 1.51, p<0.01), but inhibitory control, working memory and cognitive flexibility were not significant. Regarding exercise prescription variables, type of resistance training; moderate intensity; total duration ≤24 weeks and short (once or twice a week) frequency improved overall EF performance. Session length may be a moderator. Regarding sample characteristics, old-old, AD and both dementia and AD had significant benefits. CONCLUSIONS AND IMPLICATIONS EF in older adults with AD or related dementia benefited from physical activity, and the benefit was affected by the type, intensity, total duration, frequency of exercise. Physical activity can be an alternative intervention in aging patients with dementia, to improve EF performance or prevent or EF decline.
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Affiliation(s)
- Yuena Zeng
- School of Nursing, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jinying Wang
- Department of Rehabilitation, Shenzhen Longgang District Maternity and Child Healthcare Hospital, Shenzhen, Guangdong 518172, China
| | - Xiaoyan Cai
- School of Nursing, Jinan University, Guangzhou, Guangdong 510632, China
| | - Xiaoying Zhang
- School of Medicine, Xizang Minzu University, Xianyang 712082, China
| | - Jiahui Zhang
- School of Nursing, Jinan University, Guangzhou, Guangdong 510632, China
| | - Mingmei Peng
- School of Nursing, Jinan University, Guangzhou, Guangdong 510632, China; Hemodialysis Center, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Duan Xiao
- Department of Rehabilitation, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Hui Ouyang
- Department of Rehabilitation, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China.
| | - Fengxia Yan
- School of Nursing, Jinan University, Guangzhou, Guangdong 510632, China.
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Mitoma T, Maki J, Ooba H, Eto E, Takahashi K, Kondo T, Ikeda T, Sakamoto Y, Mitsuhashi T, Masuyama H. Protocol for a randomised, placebo-controlled, double-blinded clinical trial on the effect of oestrogen replacement on physical performance to muscle resistance exercise for older women with osteoarthritis of knee joint: the EPOK trial. BMC Geriatr 2023; 23:104. [PMID: 36800940 PMCID: PMC9938988 DOI: 10.1186/s12877-023-03828-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/15/2023] [Indexed: 02/20/2023] Open
Abstract
BACKGROUND Knee osteoarthritis (KOA) is highly prevalent in older women, and previous studies suggest the involvement of hormonal factors play a role in the pathogenesis of osteoarthritis. KOA causes musculoskeletal impairment, resulting in decreased physical activity, muscle mass, and strength, which leads to sarcopenia and further increases the burden on healthcare systems. Oestrogen replacement therapy (ERT) improves joint pain and muscle performance in early menopausal women. Muscle resistance exercise (MRE) is a non-pharmacological method that preserves the physical functions of patients with KOA. However, data on short-term oestrogen administration combined with MRE in postmenopausal women, especially in those aged > 65 years, are limited. Therefore, this study presents a protocol of a trial aimed to examine the synergistic effect of ERT and MRE on lower-limb physical performance in older women with KOA. METHODS We will conduct a double-blinded, randomised placebo-controlled trial in 80 Japanese women aged > 65 years living independently with knee pain. The participants will be randomly categorised into two groups: (1) 12-week MRE programme with transdermal oestrogen gel containing 0.54 mg oestradiol per push and (2) 12-week MRE programme with placebo gel. The primary outcome measured using the 30-s chair stand test, and secondary outcomes (body composition, lower-limb muscle strength, physical performance, self-reported measure of knee pain, and quality of life) will be measured at baseline, 3 months, and 12 months, and these outcomes will be analysed based on the intention-to-treat. DISCUSSION The EPOK trial is the first study to focus on the efficacy of ERT on MRE among women aged > 65 years with KOA. This trial will provide an effective MRE to prevent KOA-induced lower-limb muscle weakness, confirming the benefit of short-term oestrogen administration. TRIAL REGISTRATION Japan Registry of Clinical Trials: jRCTs061210062. Registered 17th December 2021, https://jrct.niph.go.jp/en-latest-detail/jRCTs061210062 .
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Affiliation(s)
- Tomohiro Mitoma
- grid.261356.50000 0001 1302 4472Department of Obstetrics and Gynecology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Jota Maki
- grid.261356.50000 0001 1302 4472Department of Obstetrics and Gynecology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hikaru Ooba
- grid.261356.50000 0001 1302 4472Department of Obstetrics and Gynecology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Eriko Eto
- grid.261356.50000 0001 1302 4472Department of Obstetrics and Gynecology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kasumi Takahashi
- Department of Obstetrics and Gynecology, Ochiai Hospital, Okayama, Japan
| | - Tsunemasa Kondo
- Department of Obstetrics and Gynecology, Ochiai Hospital, Okayama, Japan
| | - Tomohiro Ikeda
- grid.261356.50000 0001 1302 4472Department of Rehabilitation Medicine, Okayama University, Okayama, Japan
| | - Yoko Sakamoto
- grid.261356.50000 0001 1302 4472Center for Innovative Clinical Medicine, Okayama University, Okayama, Japan
| | - Toshiharu Mitsuhashi
- grid.261356.50000 0001 1302 4472Center for Innovative Clinical Medicine, Okayama University, Okayama, Japan
| | - Hisashi Masuyama
- Department of Obstetrics and Gynecology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.
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Sue K, Hirabayashi H, Osawa M, Komatsu T. Relationship between neuropsychological test scores and hippocampal atrophy in non-demented Japanese older adults. INTERDISCIPLINARY NEUROSURGERY 2022. [DOI: 10.1016/j.inat.2022.101605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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7
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Hairu R, Close JCT, Lord SR, Delbaere K, Wen W, Jiang J, Taylor ME. The association between white matter hyperintensity volume and cognitive/physical decline in older people with dementia: A one-year longitudinal study. Aging Ment Health 2022; 26:2503-2510. [PMID: 34569854 DOI: 10.1080/13607863.2021.1980859] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES Understanding the relationship between white matter hyperintensities (WMHs) and cognitive and physical decline in people with dementia will assist in determining potential treatment strategies. Currently there is conflicting evidence describing the association between WMHs and cognitive decline and, WMHs association with declines in objective measures of physical function have not been examined. We examined the relationship between baseline WMH volume and physical/cognitive decline over one-year in older people with dementia. METHODS Twenty-six community-dwelling older people with dementia (mean age = 81 ± 8 years; 35% female) were assessed at baseline and follow-up (one-year) using the Addenbrooke's Cognitive Examination-Revised (including verbal fluency), Trail Making Test A, the Physiological Profile Assessment (PPA), timed-up-and-go (TUG) and gait speed. WMH volumes were quantified using a fully automated segmentation toolbox, UBO Detector. RESULTS In analyses adjusted for baseline performance, higher baseline WMH volume was associated with decline in executive function (verbal fluency), sensorimotor function (PPA) and mobility (TUG). Executive function (semantic/category fluency) was the only domain association that withstood adjustment for age, and additionally hippocampal volume. CONCLUSIONS In unadjusted analyses, WMH volume was associated with one-year declines in cognitive and physical function in older people with dementia. The association with executive function decline withstood adjustment for age. More research is needed to confirm these findings and explore whether vascular risk reduction strategies can reduce WMH volume and associated cognitive and physical impairments in this group.
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Affiliation(s)
- Rismah Hairu
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.,Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia
| | - Jacqueline C T Close
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.,Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia
| | - Stephen R Lord
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.,School of Public Health and Community Medicine, Medicine, UNSW, Sydney, NSW, Australia
| | - Kim Delbaere
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.,School of Public Health and Community Medicine, Medicine, UNSW, Sydney, NSW, Australia
| | - Wei Wen
- Neuropsychiatric Institute, Prince of Wales Hospital, Randwick, NSW, Australia.,Centre for Healthy Brain Ageing, School of Psychiatry, Medicine, UNSW, Sydney, NSW, Australia
| | - Jiyang Jiang
- Neuropsychiatric Institute, Prince of Wales Hospital, Randwick, NSW, Australia.,Centre for Healthy Brain Ageing, School of Psychiatry, Medicine, UNSW, Sydney, NSW, Australia
| | - Morag E Taylor
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.,Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia
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Latest Trends in Outcome Measures in Dementia and Mild Cognitive Impairment Trials. Brain Sci 2022; 12:brainsci12070922. [PMID: 35884729 PMCID: PMC9313078 DOI: 10.3390/brainsci12070922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 11/20/2022] Open
Abstract
Disease modification trials in dementia and mild cognitive impairment (MCI) have not met with success. One potential criticism of these trials is the lack of sensitive outcome measures. A large number of outcome measures have been employed in dementia and MCI trials. This review aims to describe and analyze the utility of cognitive/clinical outcome measures in Alzheimer’s disease (AD) and MCI trials. Methods: A PubMed search was conducted using relevant MeSH terms and exploded keywords. The search was confined to English language publications of human studies from the last five years which describe the latest trends in the use of outcome measures. Results: Despite broad use, the outcome measures employed are heterogeneous, with little data on correlations between scales. Another problem is that most studies are over-reliant on clinician/researcher assessment and cognitive outcomes, and there is a definite lack of stakeholder input. Finetuning of the paradigm is also required for people with early-stage disease, mild to moderate disease, and advanced dementia, as the outcome measures in these subgroups have varying relevance. Disease modification/prevention is an appropriate goal in early disease, whereas palliation and freedom from discomfort are paramount in later stages. The outcome measures selected must be suitable for and sensitive to these particular care goals. Although there is a shift to enrich MCI cohorts using a biomarker-based approach, the clinical relevance of such outcome measures remains uncertain. Conclusions: Outcome measures in dementia/MCI trials remain inhomogeneous and diverse, despite extensive use. Outcome measures fall within several paradigms, including cognitive, functional, quality-of-life, biomarker-based, and patient-reported outcome measures. The success of future disease-modifying trials is reliant to a large extent on the selection of outcome measures which combine all outcomes of clinical relevance as well as clinical meaning. Outcome measures should be tied to the type and stage of dementia and to the specific interventions employed.
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Liang N, Chen Y, Yang S, Liang C, Gao L, Wang S, Wang Y, Zhang Z, Shi N. Chinese Herbal Medicine for Mild Cognitive Impairment: A Systematic Review of Randomized Controlled Trials. Front Neurol 2022; 13:903224. [PMID: 35847214 PMCID: PMC9279622 DOI: 10.3389/fneur.2022.903224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/10/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives This study aims to explore the benefits and harms of Chinese Herbal Medicine (CHM) for mild cognitive impairment (MCI). Methods Electronic searching was conducted in two English and four Chinese databases till 2021 December. Randomized clinical trials on CHM compared to no intervention, placebo or other therapies for MCI were included. Results Forty-nine RCTs (48 finished trials and 1 protocol) were identified. The overall methodological quality of included trials was relatively low. This review found that compared to no intervention or placebo, CHM can significantly decrease the number of patients who progressed to dementia (RR 0.36, 95% CI 0.22-0.58) and increase the cognitive function assessed by MMSE (MD 1.96, 95% CI 1.41-2.50) and MoCA (MD 2.44, 95% CI 1.57-3.31). The subgroup analysis of different CHM showed that Ginko leaf tablets can significantly improve the cognitive function compared to no intervention or placebo when assessed by MMSE (MD 2.03, 95% CI 1.18-2.88) and MoCA (MD 3.11, 95% CI 1.90-4.33). Compared to western medicine, CHM can significantly increase the score of MMSE (MD 0.88 95% CI 0.46-1.30) and MoCA (MD 0.87, 95% CI 0.33-1.41), but there was no significant difference on the score of ADL (SMD -0.61, 95% CI -1.49 to 0.27). None of the RCTs reported on the quality of life. Of 22 RCTs that reported adverse events, there was no statistical difference between the CHM and the control group. Conclusions CHM, Ginko leaf extracts in particular, could help to prevent progression into dementia and to improve cognitive function and ability of daily living activities. More qualified RCTs were needed to confirm the conclusion due to the low quality of current trials. Systematic Review Registration Unique Identifier: CRD42020157148.
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Affiliation(s)
- Ning Liang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yaxin Chen
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Sihong Yang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Changhao Liang
- Center for Evidence-Based Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Lidong Gao
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shang Wang
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yanping Wang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhanjun Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
| | - Nannan Shi
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
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Yu D, Li X, Lai FHY. The effect of virtual reality on executive function in older adults with mild cognitive impairment: a systematic review and meta-analysis. Aging Ment Health 2022; 27:663-673. [PMID: 35635486 DOI: 10.1080/13607863.2022.2076202] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
OBJECTIVES This review aimed to summarize the currently available premium evidence to determine the effect of virtual reality (VR) on executive function (EF) in older adults with mild cognitive impairment (MCI), and to detect what level of immersive VR would be the most beneficial. METHOD Five electronic databases, namely, PubMed, Embase, PsycINFO, CINAHL, and Cochrane Library were searched. Our research team screened the studies and extracted data according to our inclusion criteria. The methodological quality of each study was rated using the PEDro scale. When three or more studies reported the same outcome, a meta-analysis was conducted using Review Manager 5.4.1. RESULTS Finally, 14 randomized controlled trials with a total of 518 participants were included. VR training had an overall positive effect on cognitive flexibility, global cognitive function, attention, and short-term memory compared to the control groups. Additionally, semi-immersive VR was more effective in improving cognitive flexibility compared to the other two types of VR. The application of non-immersive level of VR had a significant effect on global cognitive function, attention, short-term memory, and cognitive flexibility. CONCLUSION VR may be effective in improving EF in older adults with MCI. However, the level of immersive VR that would be the most beneficial on EF still needs to be investigated with a greater number of well-designed studies.
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Affiliation(s)
- Dan Yu
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China.,Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai, China
| | - Xun Li
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Frank Ho-Yin Lai
- Department of Social Work, Education and Community Wellbeing, Faculty of Health & Life Sciences, The Northumbria Newcastle University, United Kingdom
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Kirvalidze M, Hodkinson A, Storman D, Fairchild TJ, Bała M, Beridze G, Zuriaga A, Brudasc NI, Brini S. The role of glucose on cognition, risk of dementia, and related biomarkers in individuals without type 2 diabetes mellitus or the metabolic syndrome: a systematic review of observational studies. Neurosci Biobehav Rev 2022; 135:104551. [DOI: 10.1016/j.neubiorev.2022.104551] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 01/14/2023]
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Borges-Machado F, Barros D, Teixeira L, Ribeiro Ó, Carvalho J. Health-related physical indicators and self-rated quality of life in older adults with neurocognitive disorder. Qual Life Res 2021; 30:2255-2264. [PMID: 33778911 DOI: 10.1007/s11136-021-02828-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2021] [Indexed: 01/23/2023]
Abstract
PURPOSE This study aimed to identify the association between health-related physical indicators-sarcopenia-related factors, physical fitness, independence in activities of daily living (ADL) and habitual physical activity-and self-rated quality of life (QoL) in people with neurocognitive disorder (NCD). METHODS This cross-sectional study included 115 participants (78.22 ± 7.48 years; 74.8% female) clinically diagnosed with NCD. Self-rated QoL was evaluated using The Quality of Life-Alzheimer's Disease (QoL-AD). Dual energy X-ray Absorptiometry, handgrip strength, Short Physical Performance Battery, and the 6-m Walk test were used to assess sarcopenia-related factors. Senior Fitness Test and One Leg Balance test, Barthel Index, Baecke Modified Habitual Physical Activity Questionnaire were used to determine physical fitness, independence in ADL and physical activity, respectively. Regressions analyses were performed to examine associations between these variables and QoL-AD. RESULTS Data from univariable linear regression analysis revealed that self-rated QoL was associated with sarcopenia-related factors (lower body function, handgrip strength, gait speed, and appendicular skeletal muscle mass index-ASMI), physical fitness (upper-and-lower-body strength, agility/dynamic balance, cardiorespiratory fitness and body mass index), habitual physical activity and independence in ADL. Results from multivariable regression analysis showed that ASMI (B = 1.846, 95% CI 0.165-3.527, p = 0.032) and lower body function (B = 0.756, 95% CI 0.269-1.242, p = 0.003) were positively associated with self-rated QoL. These variables explained 20.1% of the variability seen in self-rated QoL, controlling for age, sex, marital status and education. CONCLUSION Sarcopenia-related factors, namely lower body function and ASMI, should be acknowledged in future research studies as critical health-related indicators associated with QoL in people with NCD. TRIAL REGISTRATION ClinicalTrials.gov-identifier number NCT04095962.
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Affiliation(s)
- Flávia Borges-Machado
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Porto, Portugal
| | - Duarte Barros
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Porto, Portugal
| | - Laetitia Teixeira
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.,CINTESIS, Centro de Investigação em Tecnologias e Serviços de Saúde, Porto, Portugal
| | - Óscar Ribeiro
- Departamento de Educação e Psicologia, Universidade de Aveiro, Aveiro, Portugal
| | - Joana Carvalho
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Porto, Portugal. .,Faculdade de Desporto, Universidade do Porto, Porto, Portugal.
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Chan WLS, Cheung YT, Lee YW, Teo AM, Wo HK, Wong Y. Reliability, Validity, and Minimal Detectable Change of Backward Walk Test in Older Adults With Dementia. J Geriatr Phys Ther 2021; 45:145-153. [PMID: 33782361 DOI: 10.1519/jpt.0000000000000306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND PURPOSE The backward walk test (BWT) has been used to evaluate the balance, gait, and fall risk for older adults, but its psychometric properties in older adults with dementia have not been investigated. This study aims at examining the test-retest and interrater reliability, construct and known-group validity, and absolute and relative minimal detectable changes at the 95% level of confidence (MDC95) of the BWT in older adults with dementia. METHODS This study was a cross-sectional study with repeated measures. Thirty older adults with a mean age of 83.3 years and a diagnosis of dementia who were able to walk backward independently for at least 3 m were recruited from day care and residential care units. The BWT was conducted on 3 separate testing occasions within 2 weeks under 2 independent raters using a modified progressive cueing system. The 10-m walk test (10MWT), Berg Balance Scale (BBS), and Timed Up and Go test (TUG) were used to assess the gait, balance, and mobility performances of the participants. RESULTS AND DISCUSSION The BWT had excellent test-retest reliability-intraclass correlation coefficient (ICC) = 0.96-and interrater reliability (ICC = 0.97-0.97) in the participants. Moderate correlations between the BWT and BBS (Spearman's ρ = 0.60) and strong correlations between the BWT and 10MWT (ρ = 0.84) and TUG (ρ = -0.82) were found. The BWT could distinguish between the participants who ambulated with walking aids and those who did not (P = .005). The participants who had experienced a fall in the past year did not differ significantly in the BWT compared with those who had not fallen (P = .36). The absolute and relative MDC95 of the BWT in the participants were 0.10 m/s and 39.3%, respectively. CONCLUSIONS The BWT is reliable and valid in assessing balance and gait performances in older adults with dementia. Further investigation is needed to determine whether the BWT can identify those with an increased risk of falls.
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Affiliation(s)
- Wayne L S Chan
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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Carvalho J, Borges-Machado F, Barros D, Sampaio A, Marques-Aleixo I, Bohn L, Pizarro A, Teixeira L, Magalhães J, Ribeiro Ó. "Body & Brain": effects of a multicomponent exercise intervention on physical and cognitive function of adults with dementia - study protocol for a quasi-experimental controlled trial. BMC Geriatr 2021; 21:156. [PMID: 33663414 PMCID: PMC7934383 DOI: 10.1186/s12877-021-02104-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Dementia is a leading cause of death and disability that was declared as one of the greatest health and social care challenges of the twenty-first century. Regular physical activity and exercise have been proposed as a non-pharmacological strategy in disease prevention and management. Multicomponent Training (MT) combines aerobic, strength, balance and postural exercises and might be an effective training to improve both functional capacity and cognitive function in individuals with dementia (IwD). Nevertheless, data on the effects of MT in IwD are still limited and the extent to which IwD can retain improvements after an exercise intervention still needs to be elucidated. The aim of "Body & Brain" study is to investigate the effects of a 6-month MT intervention and 3-month detraining on the physical and cognitive function of IwD. Additionally, we aim to explore the impact of this intervention on psychosocial factors and physiologic markers related to dementia. METHODS This study is a quasi-experimental controlled trial using a parallel-group design. The study sample consists of community-dwelling individuals aged ≥60 years who are clinically diagnosed with dementia or major neurocognitive disorder. Participants will be either allocated into the intervention group or the control group. The intervention group will participate in MT biweekly exercise sessions, whereas the control group will receive monthly sessions regarding physical activity and health-related topics for 6 months. The main outcomes will be physical function as measured by the Short Physical Performance Battery (SPPB) and cognitive function evaluated using the Alzheimer Disease Assessment Scale - Cognitive (ADAS-Cog) at baseline, after 6-months and 3-months after the end of intervention. Secondary outcomes will be body composition, physical fitness, daily functionality, quality of life, neuropsychiatric symptoms and caregiver's burden. Cardiovascular, inflammatory and neurotrophic blood-based biomarkers, and arterial stiffness will also be evaluated in subsamples. DISCUSSION If our hypothesis is correct, this project will provide evidence regarding the efficacy of MT training in improving physical and cognitive function and give insights about its impact on novel molecular biomarkers related to dementia. This project may also contribute to provide guidelines on exercise prescription for IwD. TRIAL REGISTRATION ClinicalTrials.gov - identifier number NCT04095962 ; retrospectively registered on 19 September 2019.
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Affiliation(s)
- Joana Carvalho
- Faculdade de Desporto da Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
| | - Flávia Borges-Machado
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal.
| | - Duarte Barros
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
| | - Arnaldina Sampaio
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
| | - Inês Marques-Aleixo
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
- Faculdade de Educação Física e Desporto, Universidade Lusófona, Rua de Augusto Rosa 24, 4000-098, Porto, Portugal
| | - Lucimere Bohn
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
- Faculdade de Educação Física e Desporto, Universidade Lusófona, Rua de Augusto Rosa 24, 4000-098, Porto, Portugal
| | - Andreia Pizarro
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
| | - Laetitia Teixeira
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - José Magalhães
- Faculdade de Desporto da Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
- CIAFEL, Centro de Investigação em Atividade Física, Saúde e Lazer, Universidade do Porto, Rua Dr. Plácido Costa 91, 4200-450, Porto, Portugal
| | - Óscar Ribeiro
- CINTESIS, Centro de Investigação em Tecnologias e Serviços de Saúde, Departamento de Educação e Psicologia, Universidade de Aveiro - Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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Responsiveness and interpretability of commonly used outcome assessments of mobility capacity in older hospital patients with cognitive spectrum disorders. Health Qual Life Outcomes 2021; 19:68. [PMID: 33648508 PMCID: PMC7923341 DOI: 10.1186/s12955-021-01690-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 01/25/2021] [Indexed: 02/06/2023] Open
Abstract
Background In older hospital patients with cognitive spectrum disorders (CSD), mobility should be monitored frequently with standardised and psychometrically sound measurement instruments. This study aimed to examine the responsiveness, minimal important change (MIC), floor effects and ceiling effects of commonly used outcome assessments of mobility capacity in older patients with dementia, delirium or other cognitive impairment. Methods In a cross-sectional study that included acute older hospital patients with CSD (study period: 02/2015–12/2015), the following mobility assessments were applied: de Morton Mobility Index (DEMMI), Hierarchical Assessment of Balance and Mobility (HABAM), Performance Oriented Mobility Assessment, Short Physical Performance Battery, 4-m gait speed test, 5-times chair rise test, 2-min walk test, Timed Up and Go test, Barthel Index mobility subscale, and Functional Ambulation Categories. These assessments were administered shorty after hospital admission (baseline) and repeated prior to discharge (follow-up). Global rating of mobility change scales and a clinical anchor of functional ambulation were used as external criteria to determine the area under the curve (AUC). Construct- and anchor-based approaches determined responsiveness. MIC values for each instrument were established from different anchor- and distribution-based approaches. Results Of the 63 participants (age range: 69–94 years) completing follow-up assessments with mild (Mini Mental State Examination: 19–24 points; 67%) and moderate (10–18 points; 33%) cognitive impairment, 25% were diagnosed with dementia alone, 13% with delirium alone, 11% with delirium superimposed on dementia and 51% with another cognitive impairment. The follow-up assessment was performed 10.8 ± 2.5 (range: 7–17) days on average after the baseline assessment. The DEMMI was the most responsive mobility assessment (all AUC > 0.7). For the other instruments, the data provided conflicting evidence of responsiveness, or evidence of no responsiveness. MIC values for each instrument varied depending on the method used for calculation. The DEMMI and HABAM were the only instruments without floor or ceiling effects. Conclusions Most outcome assessments of mobility capacity seem insufficiently responsive to change in older hospital patients with CSD. The significant floor effects of most instruments further limit the monitoring of mobility alterations over time in this population. The DEMMI was the only instrument that was able to distinguish clinically important changes from measurement error. Trial registration German Clinical Trials Register (DRKS00005591). Registered February 2, 2015.
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Association between Sour Taste SNP KCNJ2-rs236514, Diet Quality and Mild Cognitive Impairment in an Elderly Cohort. Nutrients 2021; 13:nu13030719. [PMID: 33668367 PMCID: PMC7996326 DOI: 10.3390/nu13030719] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 12/18/2022] Open
Abstract
Differences in sour-taste thresholds have been identified in cognition-related diseases. Diet is a modulator of cognitive health, and taste perception influences dietary preferences and habits. Heritable genetics and polymorphisms in the KCNJ2 gene involved in the transduction of sour taste have been linked to variations in sour taste and non-gustatory functions. However, relationships between sour taste genetics, mild cognitive impairment, and diet quality are yet to be elucidated. This study investigated the associations between the presence of the KCNJ2-rs236514 variant (A) allele, diet quality indices, and mild cognitive impairment evaluated by the Mini-Mental State Examination (MMSE), in a secondary cross-sectional analysis of data from the Retirement Health & Lifestyle Study. Data from 524 elderly Australians (≥65y) were analyzed, using standard least squares regression and nominal logistic regression modeling, with demographic adjustments applied. Results showed that the presence of the KCNJ2-A allele is associated with increased proportions of participants scoring in the range indicative of mild or more severe cognitive impairment (MMSE score of ≤26) in the total cohort, and males. These associations remained statistically significant after adjusting for age, sex, and diet quality indices. The absence of association between the KCNJ2-A allele and cognitive impairment in women may be related to their higher diet quality scores in all indices. The potential link between sour taste genotype and cognitive impairment scores may be due to both oral and extra-oral functions of sour taste receptors. Further studies are required on the role and relationship of neurotransmitters, sour taste genotypes and sour taste receptors in the brain, and dietary implications, to identify potential risk groups or avenues for therapeutic or prophylactic interventions.
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Sui SX, Hordacre B, Pasco JA. Are Sarcopenia and Cognitive Dysfunction Comorbid after Stroke in the Context of Brain-Muscle Crosstalk? Biomedicines 2021; 9:biomedicines9020223. [PMID: 33671531 PMCID: PMC7926475 DOI: 10.3390/biomedicines9020223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 02/18/2021] [Accepted: 02/18/2021] [Indexed: 02/07/2023] Open
Abstract
Stroke is a leading cause of death and disability and is responsible for a significant economic burden. Sarcopenia and cognitive dysfunction are common consequences of stroke, but there is less awareness of the concurrency of these conditions. In addition, few reviews are available to guide clinicians and researchers on how to approach sarcopenia and cognitive dysfunction as comorbidities after stroke, including how to assess and manage them and implement interventions to improve health outcomes. This review synthesises current knowledge about the relationship between post-stroke sarcopenia and cognitive dysfunction, including the physiological pathways, assessment tools, and interventions involved.
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Affiliation(s)
- Sophia X. Sui
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Deakin University, Victoria, VIC 3220, Australia;
- Correspondence: ; Tel.: +61-3-42153306 (ext. 53306); Fax: +61-3-42153491
| | - Brenton Hordacre
- IIMPACT in Health, Allied Health and Human Performance, University of South Australia, Adelaide, SA 5000, Australia;
| | - Julie A. Pasco
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, Deakin University, Victoria, VIC 3220, Australia;
- Department of Medicine–Western Health, The University of Melbourne, St Albans, VIC 3021, Australia
- Barwon Health, University Hospital Geelong, Geelong, VIC 3220, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Prahran, VIC 3181, Australia
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Russell B, McDaid A, Toscano W, Hume P. Moving the Lab into the Mountains: A Pilot Study of Human Activity Recognition in Unstructured Environments. SENSORS 2021; 21:s21020654. [PMID: 33477828 PMCID: PMC7832872 DOI: 10.3390/s21020654] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 12/22/2022]
Abstract
Goal: To develop and validate a field-based data collection and assessment method for human activity recognition in the mountains with variations in terrain and fatigue using a single accelerometer and a deep learning model. Methods: The protocol generated an unsupervised labelled dataset of various long-term field-based activities including run, walk, stand, lay and obstacle climb. Activity was voluntary so transitions could not be determined a priori. Terrain variations included slope, crossing rivers, obstacles and surfaces including road, gravel, clay, mud, long grass and rough track. Fatigue levels were modulated between rested to physical exhaustion. The dataset was used to train a deep learning convolutional neural network (CNN) capable of being deployed on battery powered devices. The human activity recognition results were compared to a lab-based dataset with 1,098,204 samples and six features, uniform smooth surfaces, non-fatigued supervised participants and activity labelling defined by the protocol. Results: The trail run dataset had 3,829,759 samples with five features. The repetitive activities and single instance activities required hyper parameter tuning to reach an overall accuracy 0.978 with a minimum class precision for the one-off activity (climbing gate) of 0.802. Conclusion: The experimental results showed that the CNN deep learning model performed well with terrain and fatigue variations compared to the lab equivalents (accuracy 97.8% vs. 97.7% for trail vs. lab). Significance: To the authors knowledge this study demonstrated the first successful human activity recognition (HAR) in a mountain environment. A robust and repeatable protocol was developed to generate a validated trail running dataset when there were no observers present and activity types changed on a voluntary basis across variations in terrain surface and both cognitive and physical fatigue levels.
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Affiliation(s)
- Brian Russell
- Sports Performance Institute, Auckland University of Technology, Auckland 0632, New Zealand;
- Correspondence:
| | - Andrew McDaid
- Department of Mechanical Engineering, University of Auckland, Auckland 1142, New Zealand;
| | - William Toscano
- National Aeronautics and Space Administration, Ames Research Center, Moffett Field, CA 94043, USA;
| | - Patria Hume
- Sports Performance Institute, Auckland University of Technology, Auckland 0632, New Zealand;
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Pasco JA, Stuart AL, Sui SX, Holloway-Kew KL, Hyde NK, Tembo MC, Rufus-Membere P, Kotowicz MA, Williams LJ. Dynapenia and Low Cognition: A Cross-Sectional Association in Postmenopausal Women. J Clin Med 2021; 10:jcm10020173. [PMID: 33418963 PMCID: PMC7825045 DOI: 10.3390/jcm10020173] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/31/2020] [Accepted: 01/04/2021] [Indexed: 12/03/2022] Open
Abstract
Dynapenia is a key contributor to physical frailty. Cognitive impairment and dementia accompany frailty, yet links between skeletal muscle and neurocognition are poorly understood. We examined the cross-sectional relationship between lower limb muscle strength and global cognitive function. Participants were 127 women aged 51–87 years, from the Geelong Osteoporosis Study. Peak eccentric strength of the hip-flexors and hip abductors was determined using a hand-held dynamometer, and dynapenia identified as muscle strength t-scores < −1. Cognition was assessed using the Mini-Mental State Examination (MMSE), and MMSE scores below the median were rated as low. Associations between dynapenia and low cognition were examined using logistic regression models. Hip-flexor dynapenia was detected in 38 (71.7%) women with low cognition and 36 (48.7%) with good cognition (p = 0.009); for hip abductor dynapenia, the pattern was similar (21 (39.6%) vs. 9 (12.2%); p < 0.001). While the observed difference for hip-flexor strength was attenuated after adjusting for age and height (adjusted Odds Ratio (OR) 1.95, 95%CI 0.86–4.41), low cognition was nearly 4-fold more likely in association with hip abductor dynapenia (adjusted OR 3.76, 95%CI 1.44–9.83). No other confounders were identified. Our data suggest that low strength of the hip abductors and low cognition are associated and this could be a consequence of poor muscle function contributing to cognitive decline or vice versa. As muscle weakness is responsive to physical interventions, this warrants further investigation.
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Affiliation(s)
- Julie A. Pasco
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
- Department of Medicine-Western Health, The University of Melbourne, St Albans, VIC 3021, Australia
- Barwon Health, Geelong, VIC 3220, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
- Correspondence: ; Tel.: +61-3-421-53331
| | - Amanda L. Stuart
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Sophia X. Sui
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Kara L. Holloway-Kew
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Natalie K. Hyde
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Monica C. Tembo
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Pamela Rufus-Membere
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
| | - Mark A. Kotowicz
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
- Department of Medicine-Western Health, The University of Melbourne, St Albans, VIC 3021, Australia
- Barwon Health, Geelong, VIC 3220, Australia
| | - Lana J. Williams
- IMPACT—The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, VIC 3220, Australia; (A.L.S.); (S.X.S.); (K.L.H.-K.); (N.K.H.); (M.C.T.); (P.R.-M.); (M.A.K.); (L.J.W.)
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Effects of 6-Month Multimodal Physical Exercise Program on Bone Mineral Density, Fall Risk, Balance, and Gait in Patients with Alzheimer's Disease: A Controlled Clinical Trial. Brain Sci 2021; 11:brainsci11010063. [PMID: 33419016 PMCID: PMC7825330 DOI: 10.3390/brainsci11010063] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
We aimed to determine the short- and medium-term effects of a multimodal physical exercise program (MPEP) on bone health status, fall risk, balance, and gait in patients with Alzheimer’s disease. A single-blinded, controlled clinical trial was performed where 72 subjects were allocated in a 3:1 ratio to an intervention group (IG; n = 53) and control group (CG; n = 19), where the IG’s subjects were admitted to live in a State Reference Center of Alzheimer’s disease, which offers the targeted exercise program, while the CG’s subjects resided in independent living. A multidisciplinary health team assessed all patients before allocation, and dependent outcomes were again assessed at one, three, and six months. During the study, falls were recorded, and in all evaluations, bone mineral density was measured using a calcaneal quantitative ultrasound densitometer; balance and gait were measured using the performance-oriented mobility assessment (POMA), the timed up and go test (TUG), the one-leg balance test (OLB), and the functional reach test (FR). There were no differences between groups at baseline for all outcome measures. The prevalence of falls was significantly lower in the IG (15.09%) than in the CG (42.11%) (χ2 = 5.904; p = 0.015). We also found that there was a significant time*group interaction, with a post hoc Šidák test finding significant differences of improved physical function, especially in gait, for the IG, as assessed by POMA-Total, POMA-Gait, and TUG with a large effect size (ƞ2p = 0.185–0.201). In balance, we found significant differences between groups, regardless of time, and a medium effect size as assessed by POMA-Balance and the OLB (ƞ2p = 0.091–0.104). Clinically relevant effects were observed, although without significant differences in bone health, with a slowing of bone loss. These results show that a multimodal physical exercise program reduces fall risk and produces an improvement in gait, balance, and bone mineral density in the short and medium term in institutionalized patients with Alzheimer’s disease.
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Skeletal Muscle Health and Cognitive Function: A Narrative Review. Int J Mol Sci 2020; 22:ijms22010255. [PMID: 33383820 PMCID: PMC7795998 DOI: 10.3390/ijms22010255] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/15/2020] [Accepted: 12/22/2020] [Indexed: 12/20/2022] Open
Abstract
Sarcopenia is the loss of skeletal muscle mass and function with advancing age. It involves both complex genetic and modifiable risk factors, such as lack of exercise, malnutrition and reduced neurological drive. Cognitive decline refers to diminished or impaired mental and/or intellectual functioning. Contracting skeletal muscle is a major source of neurotrophic factors, including brain-derived neurotrophic factor, which regulate synapses in the brain. Furthermore, skeletal muscle activity has important immune and redox effects that modify brain function and reduce muscle catabolism. The identification of common risk factors and underlying mechanisms for sarcopenia and cognition may allow the development of targeted interventions that slow or reverse sarcopenia and also certain forms of cognitive decline. However, the links between cognition and skeletal muscle have not been elucidated fully. This review provides a critical appraisal of the literature on the relationship between skeletal muscle health and cognition. The literature suggests that sarcopenia and cognitive decline share pathophysiological pathways. Ageing plays a role in both skeletal muscle deterioration and cognitive decline. Furthermore, lifestyle risk factors, such as physical inactivity, poor diet and smoking, are common to both disorders, so their potential role in the muscle-brain relationship warrants investigation.
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22
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Dockx YJC, Molenaar EALM, Barten DJJA, Veenhof C. Discriminative validity of the Core outcome set functional independence in a population of older adults. BMC Geriatr 2020; 20:309. [PMID: 32847518 PMCID: PMC7450554 DOI: 10.1186/s12877-020-01705-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/12/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Clinicians are currently challenged to support older adults to maintain a certain level of Functional Independence (FI). FI is defined as "functioning physically safely and independent from another person, within one's own context". A Core Outcome Set was developed to measure FI. The purpose of this study was to assess discriminative validity of the Core Outcome Set FI (COSFI) in a population of Dutch older adults (≥ 65 years) with different levels of FI. Secondary objective was to assess to what extent the underlying domains 'coping', 'empowerment' and 'health literacy' contribute to the COSFI in addition to the domain 'physical capacity'. METHODS A population of 200 community-dwelling older adults and older adults living in residential care facilities were evaluated by the COSFI. The COSFI contains measurements on the four domains of FI: physical capacity, coping, empowerment and health literacy. In line with the COSMIN Study Design checklist for Patient-reported outcome measurement instruments, predefined hypotheses regarding prediction accuracy and differences between three subgroups of FI were tested. Testing included ordinal logistic regression analysis, with main outcome prediction accuracy of the COSFI on a proxy indicator for FI. RESULTS Overall, the prediction accuracy of the COSFI was 68%. For older adults living at home and depending on help in (i)ADL, prediction accuracy was 58%. 60% of the preset hypotheses were confirmed. Only physical capacity measured with Short Physical Performance Battery was significantly associated with group membership. Adding health literacy with coping or empowerment to a model with physical capacity improved the model significantly (p < 0.01). CONCLUSIONS The current composition of the COSFI, did not yet meet the COSMIN criteria for discriminative validity. However, with some adjustments, the COSFI potentially becomes a valuable instrument for clinical practice. Context-related factors, like the presence of a spouse, also may be a determining factor in this population. It is recommended to include context-related factors in further research on determining FI in subgroups of older people.
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Affiliation(s)
- Yvonne J C Dockx
- Physical Therapy Sciences, program in clinical Health Sciences, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
| | - Esther A L M Molenaar
- Department Innovation of Human Movement Care, Utrecht University of Applied Sciences, Utrecht, The Netherlands
- Department of Rehabilitation, Physiotherapy Science and Sport, UMC Utrecht Brain Center, Utrecht, The Netherlands
| | - Di-Janne J A Barten
- Department Innovation of Human Movement Care, Utrecht University of Applied Sciences, Utrecht, The Netherlands
- Department of Rehabilitation, Physiotherapy Science and Sport, UMC Utrecht Brain Center, Utrecht, The Netherlands
| | - Cindy Veenhof
- Department Innovation of Human Movement Care, Utrecht University of Applied Sciences, Utrecht, The Netherlands
- Department of Rehabilitation, Physiotherapy Science and Sport, UMC Utrecht Brain Center, Utrecht, The Netherlands
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23
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Baker J, de Laat D, Kruger E, McRae S, Trung S, Zottola C, Omaña H, Hunter SW. Reliable and valid measures for the clinical assessment of balance and gait in older adults with dementia: a systematic review. EUROPEAN JOURNAL OF PHYSIOTHERAPY 2020. [DOI: 10.1080/21679169.2020.1788638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Jacqueline Baker
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Danielle de Laat
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Emily Kruger
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Sarah McRae
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Sabrina Trung
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Carly Zottola
- School of Physical Therapy, University of Western Ontario, London, Canada
| | - Humberto Omaña
- Faculty of Health Sciences, University of Western Ontario, London, Canada
| | - Susan W. Hunter
- School of Physical Therapy, University of Western Ontario, London, Canada
- Faculty of Health Sciences, University of Western Ontario, London, Canada
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24
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Sui SX, Holloway-Kew KL, Hyde NK, Williams LJ, Leach S, Pasco JA. Muscle strength and gait speed rather than lean mass are better indicators for poor cognitive function in older men. Sci Rep 2020; 10:10367. [PMID: 32587294 PMCID: PMC7316855 DOI: 10.1038/s41598-020-67251-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 06/02/2020] [Indexed: 01/14/2023] Open
Abstract
We aimed to examine muscle strength, function and mass in relation to cognition in older men. This cross-sectional data-set included 292 men aged ≥60 yr. Handgrip strength (kg) was measured by dynamometry, gait speed by 4-metre walk (m/s) and appendicular lean mass (kg) by dual-energy x-ray absorptiometry. Cognition was assessed across four domains: psychomotor function, attention, visual learning and working memory. Composite scores for overall cognition were calculated. Bivariate analyses indicated that handgrip strength and gait speed were positively associated with cognitive function. After accounting for confounders, positive associations between individual muscle (or physical) measures and cognitive performance were sustained for handgrip strength and psychomotor function, gait speed and psychomotor function, gait speed and attention, handgrip strength and overall cognition, and gait speed and overall cognition. In multivariable models, handgrip strength and gait speed independently predicted psychomotor function and overall cognition. No associations were detected between lean mass and cognition after adjusting for confounders. Thus, low muscle strength and slower gait speed, rather than low lean mass, were associated with poor cognition in older men.
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Affiliation(s)
| | | | | | | | | | - Julie A Pasco
- Deakin University, Geelong, VIC, Australia
- Department of Medicine-Western Campus, The University of Melbourne, St Albans, VIC, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia
- University Hospital Geelong, Barwon Health, Geelong, VIC, Australia
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25
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Holczer A, Németh VL, Vékony T, Vécsei L, Klivényi P, Must A. Non-invasive Brain Stimulation in Alzheimer's Disease and Mild Cognitive Impairment-A State-of-the-Art Review on Methodological Characteristics and Stimulation Parameters. Front Hum Neurosci 2020; 14:179. [PMID: 32523520 PMCID: PMC7261902 DOI: 10.3389/fnhum.2020.00179] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022] Open
Abstract
Background: Transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) have been proposed as a new therapeutic way to enhance the cognition of patients with dementia. However, serious methodological limitations appear to affect the estimates of their efficacy. We reviewed the stimulation parameters and methods of studies that used TMS or tDCS to alleviate the cognitive symptoms of patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI). Moreover, we evaluated the risk of bias in these studies. Our aim was to highlight the current vulnerabilities of the field and to formulate recommendations on how to manage these issues when designing studies. Methods: Electronic databases and citation searching were used to identify studies administering TMS or tDCS on patients with AD or MCI to enhance cognitive function. Data were extracted by one review author into summary tables with the supervision of the authors. The risk of bias analysis of randomized-controlled trials was conducted by two independent assessors with version 2 of the Cochrane risk-of-bias tool for randomized trials. Results: Overall, 36 trials were identified of which 23 randomized-controlled trials underwent a risk of bias assessment. More than 75% of randomized-controlled trials involved some levels of bias in at least one domain. Stimulation parameters were highly variable with some ranges of effectiveness emerging. Studies with low risk of bias indicated TMS to be potentially effective for patients with AD or MCI while questioned the efficacy of tDCS. Conclusions: The presence and extent of methodical issues affecting TMS and tDCS research involving patients with AD and MCI were examined for the first time. The risk of bias frequently affected the domains of the randomization process and selection of the reported data while missing outcome was rare. Unclear reporting was present involving randomization, allocation concealment, and blinding. Methodological awareness can potentially reduce the high variability of the estimates regarding the effectiveness of TMS and tDCS. Studies with low risk of bias delineate a range within TMS parameters seem to be effective but question the efficacy of tDCS.
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Affiliation(s)
- Adrienn Holczer
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Viola Luca Németh
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Teodóra Vékony
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - László Vécsei
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
- MTA-SZTE Neuroscience Research Group, Szeged, Hungary
- Interdisciplinary Centre of Excellence, University of Szeged, Szeged, Hungary
| | - Péter Klivényi
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Health Center, University of Szeged, Szeged, Hungary
| | - Anita Must
- MTA-SZTE Neuroscience Research Group, Szeged, Hungary
- Faculty of Arts, Institute of Psychology, University of Szeged, Szeged, Hungary
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26
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Talwar N, Churchill NW, Hird MA, Tam F, Graham SJ, Schweizer TA. Functional magnetic resonance imaging of the trail-making test in older adults. PLoS One 2020; 15:e0232469. [PMID: 32396540 PMCID: PMC7217471 DOI: 10.1371/journal.pone.0232469] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 04/15/2020] [Indexed: 11/19/2022] Open
Abstract
The trail-making test (TMT) is a popular neuropsychological test, which is used extensively to measure cognitive impairment associated with neurodegenerative disorders in older adults. Behavioural performance on the TMT has been investigated in older populations, but there is limited research on task-related brain activity in older adults. The current study administered a naturalistic version of the TMT to a healthy older-aged population in an MRI environment using a novel, MRI-compatible tablet. Functional MRI was conducted during task completion, allowing characterization of the brain activity associated with the TMT. Performance on the TMT was evaluated using number of errors and seconds per completion of each link. Results are reported for 36 cognitively healthy older adults between the ages of 52 and 85. Task-related activation was observed in extensive regions of the bilateral frontal, parietal, temporal and occipital lobes as well as key motor areas. Increased age was associated with reduced brain activity and worse task performance. Specifically, older age was correlated with decreased task-related activity in the bilateral occipital, temporal and parietal lobes. These results suggest that healthy older aging significantly affects brain function during the TMT, which consequently may result in performance decrements. The current study reveals the brain activation patterns underlying TMT performance in a healthy older aging population, which functions as an important, clinically-relevant control to compare to pathological aging in future investigations.
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Affiliation(s)
- Natasha Talwar
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Nathan W. Churchill
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Megan A. Hird
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Fred Tam
- Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
| | - Simon J. Graham
- Physical Sciences Platform, Sunnybrook Research Institute, Toronto, Canada
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Tom A. Schweizer
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
- Division of Neurosurgery, St. Michael’s Hospital, Toronto, Canada
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Hoffman L, Hutt R, Yi Tsui CK, Zorokong K, Marfeo E. Meditation-Based Interventions for Adults With Dementia: A Scoping Review. Am J Occup Ther 2020; 74:7403205010p1-7403205010p14. [PMID: 32365307 DOI: 10.5014/ajot.2020.037820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IMPORTANCE With the high prevalence and cost of dementia care worldwide, a need exists to develop cost-effective and evidence-based treatment for people with dementia. Meditation, which has been demonstrated to have positive effects on brain health, may be a viable intervention option. OBJECTIVE To investigate how meditation-based interventions affect health and quality-of-life (QOL) outcomes for adults with dementia. DATA SOURCES Articles were located by using the keywords meditation, mindfulness, mind-body, dementia, and Alzheimer's to search the following electronic databases: PubMed, CINAHL, Embase, Cochrane, and JumboSearch at Tufts University. STUDY SELECTION AND DATA COLLECTION Using Arksey and O'Malley's methodology, a scoping review was conducted to examine scientific and gray literature published between 1997 and 2018. Data were abstracted and assessed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Only articles that included a meditation-based intervention and at least 1 participant with dementia were included. FINDINGS Nineteen articles met inclusion criteria. The four main outcomes that emerged from the literature were improvement in QOL, mental health, cognition, and functional abilities after participation in a meditation-based intervention. The outcome with the strongest support was the effectiveness of meditation-based interventions in maintaining cognitive function in people living with dementia. Significant gaps in the research were identified, including weak research design, inconsistency in measurement of outcomes, small sample sizes, and a lack of standardized meditation protocols for people with dementia. CONCLUSIONS AND RELEVANCE Our findings suggest that incorporating meditation into interventions for clients with dementia can have beneficial results. Opportunities exist for occupational therapy practitioners to advocate for the continuation of research in this field. Notable gaps in the literature highlight the need for randomized controlled trials and the development of standardized meditation protocols for people with dementia. WHAT THIS ARTICLE ADDS Meditation-based interventions for people with dementia are associated with improved quality of life and cognition and may be viable treatment options for occupational therapists to implement in their practice.
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Affiliation(s)
- Lindsey Hoffman
- Lindsey Hoffman, MSOT, OTR/L, is Alumna, Boston School of Occupational Therapy, Tufts University, Medford, MA;
| | - Rebecca Hutt
- Rebecca Hutt, MSOT, OTR, is Alumna, Boston School of Occupational Therapy, Tufts University, Medford, MA
| | - Celine Kin Yi Tsui
- Celine Kin Yi Tsui, OT/s, is Student, Boston School of Occupational Therapy, Tufts University, Medford, MA
| | - Kim Zorokong
- Kimberly Zorokong, OT/s, is Student, Boston School of Occupational Therapy, Tufts University, Medford, MA
| | - Elizabeth Marfeo
- Elizabeth Marfeo, PhD, MPH, OT, is Assistant Professor, Boston School of Occupational Therapy, Tufts University, Medford, MA
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28
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McSween MP, Coombes JS, MacKay CP, Rodriguez AD, Erickson KI, Copland DA, McMahon KL. The Immediate Effects of Acute Aerobic Exercise on Cognition in Healthy Older Adults: A Systematic Review. Sports Med 2020; 49:67-82. [PMID: 30560422 DOI: 10.1007/s40279-018-01039-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Age-related cognitive decline is a worldwide challenge, highlighting the need for safe, effective interventions that benefit cognition in older adults. Harnessing the immediate and long-term pleiotropic effects of aerobic exercise is one approach that has gained increasing interest. OBJECTIVE The aim of this review is to provide knowledge on the immediate effects of acute aerobic exercise on cognitive function of healthy older adults and to assess the methodological quality of studies investigating these effects. METHODS A database search in PubMed, CINAHL, Cochrane Central Register of Controlled Trials, Embase, PsycINFO, Web of Science, ClinicalTrials.gov and Google Scholar was conducted using a systematic search strategy. RESULTS Fifteen studies were identified and cognitive domains investigated included executive function and visual perception. Results from 14 of 15 studies showed that an acute bout of aerobic exercise can enhance at least one subsequent cognitive performance of healthy older adults when measured within 15 min post-exercise. CONCLUSION The small number of studies available, the limited domains of cognition investigated, the great variability between research protocols, and the low overall quality rating limits the conclusions that can be drawn. More comprehensive randomised controlled trials are needed to address these limitations and verify the potential benefits of acute aerobic exercise.
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Affiliation(s)
- Marie-Pier McSween
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia. .,UQ Centre for Clinical Research, The University of Queensland, Herston, QLD, Australia. .,School of Clinical Sciences and Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.
| | - Jeff S Coombes
- School of Human Movement and Nutrition Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Christopher P MacKay
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Amy D Rodriguez
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia.,Department of Veterans Affairs, Centre for Visual and Neurocognitive Rehabilitation, Atlanta, GA, USA
| | - Kirk I Erickson
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David A Copland
- School of Health and Rehabilitation Sciences, The University of Queensland, St Lucia, QLD, Australia.,UQ Centre for Clinical Research, The University of Queensland, Herston, QLD, Australia
| | - Katie L McMahon
- School of Clinical Sciences and Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
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29
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Sanders LMJ, Hortobágyi T, Karssemeijer EGA, Van der Zee EA, Scherder EJA, van Heuvelen MJG. Effects of low- and high-intensity physical exercise on physical and cognitive function in older persons with dementia: a randomized controlled trial. Alzheimers Res Ther 2020; 12:28. [PMID: 32192537 PMCID: PMC7082953 DOI: 10.1186/s13195-020-00597-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 03/11/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND Potential moderators such as exercise intensity or apolipoprotein-E4 (ApoE4) carriership may determine the magnitude of exercise effects on physical and cognitive functions in patients with dementia (PwD). We determined the effects of a 24-week aerobic and strength training program with a low- and high-intensity phase on physical and cognitive function. METHODS In an assessor-blinded randomized trial, 91 PwD (all-cause dementia, recruited from daycare and residential care facilities, age 82.3 ± 7.0 years, 59 women, Mini-Mental State Examination 20.2 ± 4.4) were allocated to the exercise or control group. In the exercise group, PwD participated in a walking and lower limb strength training program with 12 weeks low- and 12 weeks high-intensity training offered three times/week. Attention-matched control participants performed flexibility exercises and recreational activities. We assessed adherence, compliance, and exercise intensity for each session. We assessed physical (endurance, gait speed, mobility, balance, leg strength) and cognitive (verbal memory, visual memory, executive function, inhibitory control, psychomotor speed) functions with performance-based tests at baseline and after 6, 12, 18, 24, and 36 weeks (follow-up). ApoE4 carriership was determined post-intervention. RESULTS Sixty-nine PwD were analyzed. Their mean attendance was ~ 60% during the study period. There were no significant effects of the exercise vs. control intervention on endurance, mobility, balance, and leg strength in favor of the exercise group (Cohen's d = 0.13-0.18). Gait speed significantly improved with ~ 0.05 m/s after the high-intensity phase for exercise participants (Cohen's d = 0.41) but declined at follow-up. There were no significant effects of the exercise vs. control intervention on any of the cognitive measures (Cohen's d ~ - 0.04). ApoE4 carriership did not significantly moderate exercise effects on physical or cognitive function. CONCLUSIONS Exercise was superior to control activities for gait speed in our sample of PwD. However, the training effect provided no protection for mobility loss after detraining (follow-up). There were no beneficial effects of the exercise vs. control group on cognitive function. Exercise intensity moderated the effects of exercise on gait speed. ApoE4 carriership moderated the effect of exercise on global cognition only (trend level). TRIAL REGISTRATION Netherlands Trial Register, NTR5035. Registered on 2 March 2015.
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Affiliation(s)
- L. M. J. Sanders
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - T. Hortobágyi
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - E. G. A. Karssemeijer
- Department of Geriatric Medicine, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
| | - E. A. Van der Zee
- Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - E. J. A. Scherder
- Department of Clinical Neuropsychology, VU University Amsterdam, Van der Boechorststraat 1, 1081 BT Amsterdam, The Netherlands
| | - M. J. G. van Heuvelen
- Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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30
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McGough EL, Lin SY, Belza B, Becofsky KM, Jones DL, Liu M, Wilcox S, Logsdon RG. A Scoping Review of Physical Performance Outcome Measures Used in Exercise Interventions for Older Adults With Alzheimer Disease and Related Dementias. J Geriatr Phys Ther 2020; 42:28-47. [PMID: 29210934 DOI: 10.1519/jpt.0000000000000159] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND PURPOSE There is growing evidence that exercise interventions can mitigate functional decline and reduce fall risk in older adults with Alzheimer disease and related dementias (ADRD). Although physical performance outcome measures have been successfully used in older adults without cognitive impairment, additional research is needed regarding their use with individuals who have ADRD, and who may have difficulty following instructions regarding performance of these measures. The purpose of this scoping review was to identify commonly used physical performance outcome measures, for exercise interventions, that are responsive and reliable in older adults with ADRD. Ultimately, we aimed to provide recommendations regarding the use of outcome measures for individuals with ADRD across several domains of physical performance. METHODS A scoping review was conducted to broadly assess physical performance outcome measures used in exercise interventions for older adults with ADRD. Exercise intervention studies that included at least 1 measure of physical performance were included. All physical performance outcome measures were abstracted, coded, and categorized into 5 domains of physical performance: fitness, functional mobility, gait, balance, and strength. Criteria for recommendations were based on (1) the frequency of use, (2) responsiveness, and (3) reliability. Frequency was determined by the number of studies that used the outcome measure per physical performance domain. Responsiveness was assessed via calculated effect size of the outcome measures across studies within physical performance domains. Reliability was evaluated via published studies of psychometric properties. RESULTS AND DISCUSSION A total of 20 physical performance outcome measures were extracted from 48 articles that met study inclusion criteria. The most frequently used outcome measures were the 6-minute walk test, Timed Up and Go, repeated chair stand tests, short-distance gait speed, the Berg Balance Scale, and isometric strength measures. These outcome measures demonstrated a small, medium, or large effect in at least 50% of the exercise intervention studies. Good to excellent reliability was reported in samples of older adults with mild to moderate dementia. Fitness, functional mobility, gait, balance, and strength represent important domains of physical performance for older adults. The 6-minute walk test, Timed Up and Go, repeated chair stand tests, short-distance gait speed, Berg Balance Scale, and isometric strength are recommended as commonly used and reliable physical performance outcome measures for exercise interventions in older adults with mild to moderate ADRD. Further research is needed on optimal measures for individuals with severe ADRD. CONCLUSIONS The results of this review will aid clinicians and researchers in selecting reliable measures to evaluate physical performance outcomes in response to exercise interventions in older adults with ADRD.
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Affiliation(s)
- Ellen L McGough
- Department of Rehabilitation Medicine, University of Washington, Seattle, Washington
| | - Shih-Yin Lin
- School of Nursing, University of Washington, Seattle, Washington
| | - Basia Belza
- School of Nursing, University of Washington, Seattle, Washington.,Health Promotion Research Center, University of Washington, Seattle, Washington
| | - Katie M Becofsky
- Department of Kinesiology, University of Massachusetts Amherst, Amherst, Massachusetts
| | - Dina L Jones
- Department of Orthopaedics, Division of Physical Therapy, and Injury Control Research Center, West Virginia University, Morgantown, West Virginia
| | - Minhui Liu
- School of Nursing, University of Washington, Seattle, Washington.,Center for Innovative Care in Aging School of Nursing, Johns Hopkins University, Baltimore, Maryland
| | - Sara Wilcox
- Department of Exercise Science and Prevention Research Center, University of South Columbia, South Carolina
| | - Rebecca G Logsdon
- School of Nursing, University of Washington, Seattle, Washington.,Health Promotion Research Center, University of Washington, Seattle, Washington
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31
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Henskens M, Nauta IM, Vrijkotte S, Drost KT, Milders MV, Scherder EJA. Mood and behavioral problems are important predictors of quality of life of nursing home residents with moderate to severe dementia: A cross-sectional study. PLoS One 2019; 14:e0223704. [PMID: 31860641 PMCID: PMC6924675 DOI: 10.1371/journal.pone.0223704] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 09/26/2019] [Indexed: 01/28/2023] Open
Abstract
Objectives To examine the predictors associated with quality of life of nursing home residents with dementia, in order to identify which predictors are most important and hold most promise for future intervention studies. Methods/Design This cross-sectional analysis of data collected in two intervention trials included 143 participants with moderate to severe dementia who resided in 40 psychogeriatric wards in 13 nursing homes. The outcome measure quality of life was assessed with the Qualidem. Predictors examined were demographic factors, cognition, mood, behavioral problems, and comorbid conditions. Results Linear mixed regression analyses showed that all nine domains of quality of life showed independent (negative) associations with either depression, agitation, apathy, or a combination of these predictors. Agitation, apathy, depression, and the presence of neurological disease explained 50% of the variance in total quality of life. Male gender, psychiatric/mood disorders, and having one or more comorbid conditions was associated with worse social relations, while the presence of comorbid neurological diseases was associated with more social isolation and a worse care relationship. The presence of endocrine/metabolic disorders and pulmonary disorders was associated with less restless tense behavior. Conclusions Different domains of quality of life showed different associations, confirming the multidimensionality of quality of life in nursing home residents with dementia. Quality of life is independently associated with mood and behavioral problems, comorbid conditions, and gender. This knowledge may help to identify older persons at risk of a lower quality of life, and to offer targeted interventions to improve quality of life. Trial registration Dutch Trial registration NTR5641
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Affiliation(s)
- Marinda Henskens
- Department of Clinical Neuropsychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- * E-mail:
| | - Ilse M. Nauta
- Department of Neurology, MS Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | | | | | - Maarten V. Milders
- Department of Clinical Neuropsychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Erik J. A. Scherder
- Department of Clinical Neuropsychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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Ferreira JV, Araujo NBD, Oliveira FD, Plácido J, Anna PS, Monteiro-Junior RS, Marinho V, Laks J, Deslandes A. Dual task in healthy elderly, depressive and Alzheimer’s disease patients. JORNAL BRASILEIRO DE PSIQUIATRIA 2019. [DOI: 10.1590/0047-2085000000247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Objective To investigate whether the DT performance can be affected by the diagnosis of major depressive disorder (MDD) and Alzheimer’s disease (AD). Methods Cross-sectional data with 108 individuals [Healthy (HE) = 56, MDD =19, AD = 33] aged 60 and older of both sexes diagnosis with AD, MDD, and HE without a clinical diagnosis of mental disorders, residents of the city of Rio de Janeiro. DT performance, was measured by mean velocity (m/s), DT cost and the number of evoked words (DTanimals). One-way ANOVA was used to compare groups. In addition, a logistic regression was used to verify the association between the performance in the DT variables and the risk of MD and AD, controlled by age and scholarity. Results There was a significant difference between the HE and AD groups in the DT variables. The worst performance in the DTC and DTanimals variables increased risk of AD, regardless of age and scholarity (DTC, OR = 5.6, 95% CI = 1.4-22.2, p = 0.01 and DTanimals, OR = 3.6, 95% CI = 0.97-14.0, p = 0.05). Conclusion The ability to perform two tasks simultaneously appears to be impaired in patients with Alzheimer’s disease, and unaffected by the major depressive disorder.
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Affiliation(s)
| | | | | | | | | | | | | | - Jerson Laks
- Federal University of Rio de Janeiro, Brazil
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Van Ooteghem K, Musselman K, Gold D, Marcil MN, Keren R, Tartaglia MC, Flint AJ, Iaboni A. Evaluating Mobility in Advanced Dementia: A Scoping Review and Feasibility Analysis. THE GERONTOLOGIST 2019; 59:e683-e696. [PMID: 29982355 DOI: 10.1093/geront/gny068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Mobility decline is a symptom of advanced dementia that affects function, safety, caregiving, and quality of life. Monitoring mobility status is essential for initiating timely and targeted interventions aimed at preventing excess disability in people with dementia (PWD). The physical, cognitive, and behavioral symptoms of dementia however, present unique challenges for mobility assessment. The goals of this review were to (a) identify and describe measures of mobility used for PWD and (b) assess measures' feasibility for use in people with advanced dementia; a group whose degree of cognitive impairment results in severe functional deficits. RESEARCH DESIGN AND METHODS Electronic searches of Medline, Embase, CINAHL, and PsychInfo databases were conducted using keywords related to dementia, mobility, measurement, and validation. Descriptive characteristics were extracted and measures coded for mobility components. Tools were also evaluated for feasibility of use in advanced dementia and those deemed feasible, screened for psychometric strength. RESULTS Thirty-eight measures were included and 68% of these tools were performance-based. Elements of mobility evaluated were walking (53% of measures), postural transitions (42%), standing (40%), mobility-related behavioral/psychological symptoms (24%), transfers (10%), bed mobility (5%), and wheeled mobility (3%). 36% of studies included people with advanced dementia. Only 18% of tools received high scores for feasibility. DISCUSSION AND IMPLICATIONS Existing measures provide only partial information regarding mobility and few target elements that become relevant as dementia progresses. Most measures are not feasible for people with advanced dementia, and the psychometric evaluation of these measures is limited. Further research is needed to develop a comprehensive, dementia-specific, mobility assessment tool.
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Affiliation(s)
| | - Kristin Musselman
- Toronto Rehabilitation Institute, University Health Network, Canada
- Department of Physical Therapy, Faculty of Medicine, University of Toronto, Canada
| | - David Gold
- Neuropsychology Clinic, Krembil Neuroscience Centre-Toronto Western Hospital, University Health Network, Canada
- Department of Psychiatry, University of Toronto, Canada
| | - Meghan N Marcil
- Toronto Rehabilitation Institute, University Health Network, Canada
| | - Ron Keren
- Toronto Rehabilitation Institute, University Health Network, Canada
- Department of Psychiatry, University of Toronto, Canada
- Centre for Mental Health, University Health Network, Toronto, Canada
| | - Maria Carmela Tartaglia
- Memory Clinic, University Health Network, Toronto, Canada
- Tanz Centre for Research in Neurodegenerative Diseases, Faculty of Medicine, University of Toronto, Canada
| | - Alastair J Flint
- Department of Psychiatry, University of Toronto, Canada
- Centre for Mental Health, University Health Network, Toronto, Canada
| | - Andrea Iaboni
- Toronto Rehabilitation Institute, University Health Network, Canada
- Department of Psychiatry, University of Toronto, Canada
- Centre for Mental Health, University Health Network, Toronto, Canada
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Trautwein S, Maurus P, Barisch-Fritz B, Hadzic A, Woll A. Recommended motor assessments based on psychometric properties in individuals with dementia: a systematic review. Eur Rev Aging Phys Act 2019; 16:20. [PMID: 31700552 PMCID: PMC6825725 DOI: 10.1186/s11556-019-0228-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 10/18/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Motor assessments are important to determine effectiveness of physical activity in individuals with dementia (IWD). However, inappropriate and non-standardised assessments without sound psychometric properties have been used. This systematic review aims to examine psychometric properties of motor assessments in IWD combined with frequency of use and effect sizes and to provide recommendations based on observed findings.We performed a two-stage systematic literature search using Pubmed, Web of Science, Cochrane Library, ALOIS, and Scopus (inception - July/September 2018, English and German). The first search purposed to identify motor assessments used in randomised controlled trials assessing effectiveness of physical activity in IWD and to display their frequency of use and effect sizes. The second search focused on psychometric properties considering influence of severity and aetiology of dementia and cueing on test-retest reliability. Two reviewers independently extracted and analysed findings of eligible studies in a narrative synthesis. RESULTS Literature searches identified 46 randomised controlled trials and 21 psychometric property studies. While insufficient information was available for validity, we observed sufficient inter-rater and relative test-retest reliability but unacceptable absolute test-retest reliability for most assessments. Combining these findings with frequency of use and effect sizes, we recommend Functional Reach Test, Groningen Meander Walking Test (time), Berg Balance Scale, Performance Oriented Mobility Assessment, Timed Up & Go Test, instrumented gait analysis (spatiotemporal parameters), Sit-to-Stand assessments (repetitions> 1), and 6-min walk test. It is important to consider that severity and aetiology of dementia and cueing influenced test-retest reliability of some assessments. CONCLUSION This review establishes an important foundation for future investigations. Sufficient relative reliability supports the conclusiveness of recommended assessments at group level, while unacceptable absolute reliability advices caution in assessing intra-individual changes. Moreover, influences on test-retest reliability suggest tailoring assessments and instructions to IWD and applying cueing only where it is inevitable. Considering heterogeneity of included studies and insufficient examination in various areas, these recommendations are not comprehensive. Further research, especially on validity and influences on test-retest reliability, as well as standardisation and development of tailored assessments for IWD is crucial.This systematic review was registered in PROSPERO (CRD42018105399).
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Affiliation(s)
- Sandra Trautwein
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Philipp Maurus
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
- Faculty of Kinesiology, University of Calgary, Calgary, Alberta Canada
| | - Bettina Barisch-Fritz
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Anela Hadzic
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Alexander Woll
- Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
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de Oliveira Silva F, Ferreira JV, Plácido J, Chagas D, Praxedes J, Guimarães C, Batista LA, Marinho V, Laks J, Deslandes AC. Stages of mild cognitive impairment and Alzheimer’s disease can be differentiated by declines in timed up and go test: A systematic review and meta-analysis. Arch Gerontol Geriatr 2019; 85:103941. [DOI: 10.1016/j.archger.2019.103941] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 08/07/2019] [Accepted: 08/23/2019] [Indexed: 10/26/2022]
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Mansukhani MP, Kolla BP, Somers VK. Hypertension and Cognitive Decline: Implications of Obstructive Sleep Apnea. Front Cardiovasc Med 2019; 6:96. [PMID: 31355211 PMCID: PMC6636426 DOI: 10.3389/fcvm.2019.00096] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
Hypertension and dementia are highly prevalent in the general population. Hypertension has been shown to be a risk factor for Alzheimer's dementia and vascular dementia. Sleep apnea, another common disorder, is strongly associated with hypertension and recent evidence suggests that it may also be linked with cognitive decline and dementia. It is possible that sleep apnea is the final common pathway linking hypertension to the development of dementia. This hypothesis merits further exploration as sleep apnea is readily treatable and such therapy could foreseeably delay or prevent the onset of dementia. At present, there is a paucity of therapeutic modalities that can prevent or arrest cognitive decline. In this review, we describe the associations between hypertension, dementia and sleep apnea, the pathophysiologic mechanisms underlying these associations, and the literature examining the impact of treatment of hypertension and sleep apnea on cognition. Potential areas of future investigation that may help advance our understanding of the magnitude and direction of the interaction between these conditions and the effects of treatment of high blood pressure and sleep apnea on cognition are highlighted.
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Affiliation(s)
| | - Bhanu Prakash Kolla
- Center for Sleep Medicine, Mayo Clinic, Rochester, MN, United States.,Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Virend K Somers
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, United States
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Trautwein S, Barisch-Fritz B, Scharpf A, Bossers W, Meinzer M, Steib S, Stein T, Bös K, Stahn A, Niessner C, Altmann S, Wittelsberger R, Woll A. Recommendations for assessing motor performance in individuals with dementia: suggestions of an expert panel - a qualitative approach. Eur Rev Aging Phys Act 2019; 16:5. [PMID: 31015865 PMCID: PMC6463628 DOI: 10.1186/s11556-019-0212-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/31/2019] [Indexed: 12/02/2022] Open
Abstract
Background Recommendations for assessing motor performance in individuals with dementia (IWD) are rare, and most existing assessment tools previously applied in IWD were initially developed for healthy older adults. However, IWD and their healthy counterparts differ in motor and cognitive capabilities, which needs to be considered when designing studies for this population. This article aims to give recommendations for motor assessments for IWD and to promote standardisation based on a structured discussion of identified assessment tools used in previous trials. Methods Appropriateness and standardisation of previously applied motor assessments for IWD were intensively discussed using a qualitative approach during an expert panel. Furthermore, the use of external cues and walking aids, as well as psychometric properties were considered. Starting with a comprehensive overview of current research practice, the discussion was gradually specified and resulted in the elaboration of specific recommendations. Results The superior discussion emphasised the need for tailoring motor assessments to specific characteristics of IWD and attaching importance to standardised assessment procedures. Specific recommendations include the use of sequential approaches, which incorporate a gradual increase of complexity from simple to more difficult tasks, a selection of motor assessments showing sufficient relative reliability and appropriateness for IWD, as well as allowing external cues and walking aids when restricted to repeated instructions and commonly used devices, respectively. Conclusions These are the first recommendations for assessing motor performance in IWD based on a comprehensive qualitative approach. Due to limited evidence, it was not possible to address all existing questions. It is therefore important to evaluate these recommendations in studies with IWD. Besides tailoring and evaluating available assessments, future research should focus on developing specific tools for IWD. Moreover, further progress in standardisation is necessary to enhance comparability between different trials. This article provides initial approaches for overcoming existing limitations in trials with IWD by giving recommendations and identifying future research questions, and therefore contributes to enhancing evidence regarding efficacy and effectiveness of physical activity interventions.
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Affiliation(s)
- Sandra Trautwein
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Bettina Barisch-Fritz
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Andrea Scharpf
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Willem Bossers
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marcus Meinzer
- 3Centre for Clinical Research, University of Queensland, Brisbane, Australia.,4Department of Neurology, Greifswald University Medicine, Greifswald, Germany
| | - Simon Steib
- 5Department of Sport Science and Sport, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Thorsten Stein
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Klaus Bös
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Alexander Stahn
- 6Unit of Experimental Psychiatry, Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA.,Institute of Physiology, Charité - Universitätsmedizin Berlin, a corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Claudia Niessner
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Stefan Altmann
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Rita Wittelsberger
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
| | - Alexander Woll
- 1Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Engler-Bunte-Ring 15, 76131 Karlsruhe, Germany
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Cognitive Function Is Associated With Mobility in Community Dwelling Older Adults With a History of Cardiovascular Disease. Cardiopulm Phys Ther J 2019. [DOI: 10.1097/cpt.0000000000000095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Braun T, Thiel C, Schulz RJ, Grüneberg C. Reliability of mobility measures in older medical patients with cognitive impairment. BMC Geriatr 2019; 19:20. [PMID: 30674278 PMCID: PMC6343264 DOI: 10.1186/s12877-019-1036-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 01/14/2019] [Indexed: 01/06/2023] Open
Abstract
Background Mobility is a key indicator of physical functioning in older people, but there is limited evidence of the reliability of mobility measures in older people with cognitive impairment. This study aimed to examine the test-retest reliability and measurement error of common measurement instruments of mobility and physical functioning in older patients with dementia, delirium or other cognitive impairment. Methods A cross-sectional study was performed in a geriatric hospital. Older acute medical patients with cognitive impairment, indicated by a Mini-Mental State Examination (MMSE) score of ≤24 points, were assessed twice within 1 day by a trained physiotherapist. The following instruments were applied: de Morton Mobility Index, Hierarchical Assessment of Balance and Mobility, Performance-Oriented Mobility Assessment, Short Physical Performance Battery, 4-m gait speed, 5-times chair rise test, 2-min walk test, timed up and go test, Barthel Index mobility subscale and Functional Ambulation Categories. As appropriate, the intraclass correlation coefficient (ICC), Cohen’s kappa, standard error of measurement, limits of agreement and minimal detectable change (MDC) values were estimated. Results Sixty-five older acute medical patients with cognitive impairment participated in the study (mean age: 82 ± 7 years; mean MMSE: 20 ± 4, range: 10 to 24 points). Some participants were physically or cognitively unable to perform the gait speed (46%), 2-min walk (46%), timed up and go (51%) and chair rise (75%) tests. ICC and kappa values were above 0.9 in all instruments except for the gait speed (ICC = 0.86) and chair rise (ICC = 0.72) measures. Measurement error is reported for each instrument. The absolute limits of agreement ranged from 11% (de Morton Mobility Index and Hierarchical Assessment of Balance and Mobility) to 35% (chair rise test). Conclusions The test-retest reliability is sufficient (> 0.7) for group-comparisons in all examined instruments. Most mobility measurements have limited use for individual monitoring of mobility over time in older hospital patients with cognitive impairment because of the large measurement error (> 20% of scale width), even though relative reliability estimations seem sufficient (> 0.9) for this purpose. Trial registration German Clinical Trials Register (DRKS00005591). Registered 2 February 2015. Electronic supplementary material The online version of this article (10.1186/s12877-019-1036-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tobias Braun
- Department of Applied Health Sciences, Division of Physiotherapy, Hochschule für Gesundheit (University of Applied Sciences), Gesundheitscampus 6-8, 44801, Bochum, Germany.
| | - Christian Thiel
- Department of Applied Health Sciences, Division of Physiotherapy, Hochschule für Gesundheit (University of Applied Sciences), Gesundheitscampus 6-8, 44801, Bochum, Germany.,Faculty of Sports Science, Training and Exercise Science, Ruhr-University Bochum, Bochum, Germany
| | - Ralf-Joachim Schulz
- Department of Geriatric Medicine, St. Marien-Hospital, Kunibertskloster 11-13, 50668, Cologne, Germany
| | - Christian Grüneberg
- Department of Applied Health Sciences, Division of Physiotherapy, Hochschule für Gesundheit (University of Applied Sciences), Gesundheitscampus 6-8, 44801, Bochum, Germany
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Kolanowski A, Gilmore-Bykovskyi A, Hill N, Massimo L, Mogle J. Measurement Challenges in Research With Individuals With Cognitive Impairment. Res Gerontol Nurs 2019; 12:7-15. [PMID: 30653646 PMCID: PMC6500490 DOI: 10.3928/19404921-20181212-06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This State of the Science Commentary responds to the preliminary recommendation from the National Research Summit on Dementia Care, Services and Supports for Persons with Dementia and Their Caregivers to develop and identify a broad array of outcome measures (objective and subjective) that are meaningful to different stakeholders. Five significant measurement challenges that nurse scientists confront when conducting research with individuals with cognitive impairment are presented: (a) assessment of subjective memory complaints; (b) validity of self-report; (c) ecological validity of cognitive performance measures; (d) use of biomarkers (neuroimaging) for describing the biological dynamics of symptoms; and (e) effect of high variability in measurement on statistical significance. Methods for addressing these challenges are offered. [Res Gerontol Nurs. 2019; 12(1):7-15.].
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Taylor ME, Butler AA, Lord SR, Delbaere K, Kurrle SE, Mikolaizak AS, Close JC. Inaccurate judgement of reach is associated with slow reaction time, poor balance, impaired executive function and predicts prospective falls in older people with cognitive impairment. Exp Gerontol 2018; 114:50-56. [DOI: 10.1016/j.exger.2018.10.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/26/2018] [Accepted: 10/25/2018] [Indexed: 12/12/2022]
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Sanders LMJ, Hortobágyi T, Balasingham M, Van der Zee EA, van Heuvelen MJG. Psychometric Properties of a Flanker Task in a Sample of Patients with Dementia: A Pilot Study. Dement Geriatr Cogn Dis Extra 2018; 8:382-392. [PMID: 30483304 PMCID: PMC6243949 DOI: 10.1159/000493750] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 09/13/2018] [Indexed: 01/08/2023] Open
Abstract
Background/Aims Reliable and valid neuropsychological tests for patients with dementia are scarce. To improve the assessment of attention and inhibitory control in dementia, we determined the feasibility, test-retest reliability, and validity of a Flanker task. Methods Participants with all-cause diagnosed dementia (n = 22, mean age 84 years; mean Mini-Mental State Examination [MMSE] score = 19.4) performed a computerized Flanker task twice within 7 days. The Flanker task required participants to indicate the direction of target arrows flanked by congruent or incongruent arrows. Number of completed trials, accuracy, and reaction times (RTs) were recorded, and interference scores were calculated from basic scores. We examined the psychometric properties of the Flanker task and its relationship with the MMSE and Stroop test. Results The Flanker task was feasible. Test-retest reliability was good for number of correct answers and RTs, and fair to poor for accuracy and the interference scores. The correlation of the Flanker task with Stroop and MMSE performance was fair to poor. Conclusion The Flanker task appears to be feasible, and a reliable and valid measure of selective attention. Although the test-retest reliability for the Flanker RT interference measure was fair, future studies need to confirm its validity to measure inhibitory control in patients with dementia.
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Affiliation(s)
- Lianne M J Sanders
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands
| | - Tibor Hortobágyi
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands
| | - Mala Balasingham
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands
| | - Eddy A Van der Zee
- University of Groningen, Groningen Institute for Evolutionary Life Sciences (GELIFES), Groningen, the Netherlands
| | - Marieke J G van Heuvelen
- University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands
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Henskens M, Nauta IM, van Eekeren MC, Scherder EJ. Effects of Physical Activity in Nursing Home Residents with Dementia: A Randomized Controlled Trial. Dement Geriatr Cogn Disord 2018; 46:60-80. [PMID: 30145595 PMCID: PMC6187838 DOI: 10.1159/000491818] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/03/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND/AIMS There is no consensus regarding the optimal nonpharmacological intervention to slow down dementia-related decline. We examined whether physical stimulation interventions were effective in reducing cognitive, physical, mood, and behavioral decline in nursing home residents with dementia. METHODS Eighty-seven nursing home residents with dementia were randomly assigned to 3 physical activity interventions: activities of daily living (ADL) training, multicomponent exercise training, or combined multicomponent exercise and ADL training. Outcomes were measured at baseline, and after 3 and 6 months. RESULTS A 6-month ADL training benefitted executive functions, physical endurance, and depression among men. Exercise training benefitted only grip strength of participants with mild-to-moderate cognitive impairment. A combined training benefitted functional mobility compared to ADL training, depressive symptoms and agitation compared to exercise training, and physical endurance compared to no physical stimulation. CONCLUSIONS ADL training appears to be effective for nursing home residents with moderately severe dementia. It remains unclear whether exercise training is an effective type of stimulation.
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Affiliation(s)
- Marinda Henskens
- Department of Clinical Neuropsychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Ilse M. Nauta
- Department of Neurology, MS Center Amsterdam, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | | | - Erik J.A. Scherder
- Department of Clinical Neuropsychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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Bilgel M, Koscik RL, An Y, Prince JL, Resnick SM, Johnson SC, Jedynak BM. Temporal Order of Alzheimer's Disease-Related Cognitive Marker Changes in BLSA and WRAP Longitudinal Studies. J Alzheimers Dis 2018; 59:1335-1347. [PMID: 28731452 DOI: 10.3233/jad-170448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Investigation of the temporal trajectories of currently used neuropsychological tests is critical to identifying earliest changing measures on the path to dementia due to Alzheimer's disease (AD). We used the Progression Score (PS) method to characterize the temporal trajectories of measures of verbal memory, executive function, attention, processing speed, language, and mental status using data spanning normal cognition, mild cognitive impairment, and AD from 1,661 participants with a total of 7,839 visits (age at last visit 77.6 SD 9.2) in the Baltimore Longitudinal Study of Aging (BLSA) and 1510 participants with a total of 3,473 visits (age at last visit 59.5 SD 7.4) in the Wisconsin Registry for Alzheimer's Prevention (WRAP). This method aligns individuals in time based on the similarity of their longitudinal measurements to reveal temporal trajectories. As a validation of our methodology, we explored the associations between the individualized cognitive progression scores (Cog-PS) computed by our method and clinical diagnosis. Digit span tests were the first to show declines in both data sets, and were detected mainly among cognitively normal individuals. These were followed by tests of verbal memory, which were in turn followed by Trail Making Tests, Boston Naming Test, and Mini-Mental State Examination. Differences in Cog-PS across the clinical diagnosis and APOEɛ4 groups were statistically significant, highlighting the potential use of Cog-PS as individualized indicators of disease progression. Identifying cognitive measures that are changing in preclinical AD can lead to the development of novel cognitive tests that are finely tuned to detecting earliest changes.
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Affiliation(s)
- Murat Bilgel
- Laboratory of Behavioral Neuroscience, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Rebecca L Koscik
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, USA, Madison, WI, USA
| | - Yang An
- Laboratory of Behavioral Neuroscience, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Jerry L Prince
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Susan M Resnick
- Laboratory of Behavioral Neuroscience, Intramural Research Program, National Institute on Aging, Baltimore, MD, USA
| | - Sterling C Johnson
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, USA, Madison, WI, USA.,Geriatric Research Education and Clinical Center, Wm. S. Middleton Veterans Hospital, Madison, WI, USA.,Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Waisman Laboratory for Brain Imaging and Behavior, University of Wisconsin-Madison, Madison, WI, USA
| | - Bruno M Jedynak
- Department of Mathematics and Statistics, Portland State University, Portland, OR, USA
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Application and Interpretation of Functional Outcome Measures for Testing Individuals With Cognitive Impairment. TOPICS IN GERIATRIC REHABILITATION 2018. [DOI: 10.1097/tgr.0000000000000171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
The aim of this study was to verify the effects of functional-task training on cognitive function, activities of daily living (ADL) performance, and functional fitness in community-dwelling older adults with diagnosis of Alzheimer's disease (AD). A total of 57 participants (22 functional-task training group [FTG], 21 social gathering group [SGG], 14 control group [CG]) were recruited. Participants in both intervention groups carried out three 1-hr sessions per week of a functional-task program and social gathering activities for 12 weeks. Significant improvements were observed in executive functions (TMT, t-test, p = .03) in the SGG and in upper limb strength (arm curl, t-test, p = .01) in the FTG. Functional-task training has no significant effect on cognitive function, ADL, and functional fitness among people with AD, although it may contribute to slowing down the process of deterioration this illness causes.
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Sanders LMJ, Hortobágyi T, van Staveren G, Taxis K, Boersma F, Klein HC, Bossers WJR, Blankevoort CG, Scherder EJA, Van der Zee EA, van Heuvelen MJG. Relationship between drug burden and physical and cognitive functions in a sample of nursing home patients with dementia. Eur J Clin Pharmacol 2017; 73:1633-1642. [PMID: 28921380 PMCID: PMC5684292 DOI: 10.1007/s00228-017-2319-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/03/2017] [Indexed: 11/24/2022]
Abstract
Purpose The Drug Burden Index (DBI) is a tool to quantify the anticholinergic and sedative load of drugs. Establishing functional correlates of the DBI could optimize drug prescribing in patients with dementia. In this cross-sectional study, we determined the relationship between DBI and cognitive and physical functions in a sample of patients with dementia. Methods Using performance-based tests, we measured physical and cognitive functions in 140 nursing home patients aged over 70 with all-cause dementia. We also determined anticholinergic DBI (AChDBI) and sedative DBI (SDBI) separately and in combination as total drug burden (TDB). Results Nearly one half of patients (48%) used at least one DBI-contributing drug. In 33% of the patients, drug burden was moderate (0 < TDB < 1) whereas in 15%, drug burden was high (TDB ≥ 1). Multivariate models yielded no associations between TDB, AChDBI, and SDBI, and physical or cognitive function (all p > 0.05). Conclusions A lack of association between drug burden and physical or cognitive function in this sample of patients with dementia could imply that drug prescribing is more optimal for patients with dementia compared with healthy older populations. However, such an interpretation of the data warrants scrutiny as several dementia-related factors may confound the results of the study. Electronic supplementary material The online version of this article (10.1007/s00228-017-2319-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- L M J Sanders
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.
| | - T Hortobágyi
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - G van Staveren
- Emergency Department, Medical Center Leeuwarden, Henri Dunantweg 2, 8934 AD, Leeuwarden, The Netherlands
| | - K Taxis
- Groningen Research Institute of Pharmacy (GRIP), University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - F Boersma
- Department of General Practice, Elderly Care Medicine, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - H C Klein
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - W J R Bossers
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
| | - C G Blankevoort
- Department of Geriatric Psychiatry, Lentis, Hereweg 80, 9725 AG, Groningen, The Netherlands
| | - E J A Scherder
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands.,Department of Clinical Neuropsychology, VU University Amsterdam, Van der Boechorstraat 1, 1081 BT, Amsterdam, The Netherlands
| | - E A Van der Zee
- Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - M J G van Heuvelen
- Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV, Groningen, The Netherlands
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Walker KA, Power MC, Gottesman RF. Defining the Relationship Between Hypertension, Cognitive Decline, and Dementia: a Review. Curr Hypertens Rep 2017; 19:24. [PMID: 28299725 DOI: 10.1007/s11906-017-0724-3] [Citation(s) in RCA: 257] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hypertension is a highly prevalent condition which has been established as a risk factor for cardiovascular and cerebrovascular disease. Although the understanding of the relationship between cardiocirculatory dysfunction and brain health has improved significantly over the last several decades, it is still unclear whether hypertension constitutes a potentially treatable risk factor for cognitive decline and dementia. While it is clear that hypertension can affect brain structure and function, recent findings suggest that the associations between blood pressure and brain health are complex and, in many cases, dependent on factors such as age, hypertension chronicity, and antihypertensive medication use. Whereas large epidemiological studies have demonstrated a consistent association between high midlife BP and late-life cognitive decline and incident dementia, associations between late-life blood pressure and cognition have been less consistent. Recent evidence suggests that hypertension may promote alterations in brain structure and function through a process of cerebral vessel remodeling, which can lead to disruptions in cerebral autoregulation, reductions in cerebral perfusion, and limit the brain's ability to clear potentially harmful proteins such as β-amyloid. The purpose of the current review is to synthesize recent findings from epidemiological, neuroimaging, physiological, genetic, and translational research to provide an overview of what is currently known about the association between blood pressure and cognitive function across the lifespan. In doing so, the current review also discusses the results of recent randomized controlled trials of antihypertensive therapy to reduce cognitive decline, highlights several methodological limitations, and provides recommendations for future clinical trial design.
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Affiliation(s)
- Keenan A Walker
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446D 600 North Wolfe St., Baltimore, MD, 21287, USA
| | - Melinda C Power
- Department of Epidemiology and Biostatistics, George Washington University Milken Institute School of Public Health, Washington, DC, USA
| | - Rebecca F Gottesman
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446D 600 North Wolfe St., Baltimore, MD, 21287, USA. .,Department of Epidemiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Taylor ME, Lasschuit DA, Lord SR, Delbaere K, Kurrle SE, Mikolaizak AS, Kvelde T, Close JCT. Slow gait speed is associated with executive function decline in older people with mild to moderate dementia: A one year longitudinal study. Arch Gerontol Geriatr 2017; 73:148-153. [PMID: 28818760 DOI: 10.1016/j.archger.2017.07.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 01/28/2023]
Abstract
OBJECTIVES This study aimed to document change in neuropsychological, physical and functional performance over one year and to investigate the relationship between baseline gait speed and cognitive decline in this period in older people with dementia. METHODS One hundred and seventy-seven older people with dementia (Mini-Mental State Examination 11-23; Addenbrooke's Cognitive Examination-Revised <83) residing in the community or low level care facility completed baseline neuropsychological, physical and functional assessments. Of these, 134 participants agreed to reassessment of the above measures one year later. RESULTS Overall, many neuropsychological, physical and functional performance measures declined significantly over the one year study period. Baseline gait speed was significantly associated with decline in verbal fluency (B(109)=2.893, p=0.046), specifically phonemic/letter fluency (B(109)=2.812, p=0.004) while controlling for age, education, dementia drug use and baseline cognitive performance. There was also a trend for an association between baseline gait speed and decline in clock drawing performance (B(107)=0.601, p=0.071). CONCLUSIONS Older people with mild to moderate dementia demonstrate significant decline in neuropsychological, physical and functional performance over one year. Baseline gait speed is associated with decline in executive function over one year, suggesting shared pathways/pathology between gait and cognition.
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Affiliation(s)
- Morag E Taylor
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia; Cognitive Decline Partnership Centre, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia; Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia.
| | - Danielle A Lasschuit
- Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia; Department of Geriatric Medicine, Prince of Wales Hospital, South East Sydney Local Health District, Sydney, NSW, Australia.
| | - Stephen R Lord
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia; School of Public Health and Community Medicine, Medicine, UNSW, Sydney, NSW, Australia.
| | - Kim Delbaere
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia; School of Public Health and Community Medicine, Medicine, UNSW, Sydney, NSW, Australia.
| | - Susan E Kurrle
- Cognitive Decline Partnership Centre, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia.
| | - A Stefanie Mikolaizak
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.
| | - Tasha Kvelde
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia.
| | - Jacqueline C T Close
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, UNSW, Sydney, NSW, Australia; Prince of Wales Clinical School, Medicine, UNSW, Sydney, NSW, Australia.
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50
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Taylor ME, Lord SR, Delbaere K, Kurrle SE, Mikolaizak AS, Close JCT. Reaction Time and Postural Sway Modify the Effect of Executive Function on Risk of Falls in Older People with Mild to Moderate Cognitive Impairment. Am J Geriatr Psychiatry 2017; 25:397-406. [PMID: 28063853 DOI: 10.1016/j.jagp.2016.10.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/20/2016] [Accepted: 10/21/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To explore the relationship between cognitive performance and falls in older people with mild to moderate cognitive impairment (CI) by investigating the mediational effects of medical, medication, neuropsychological, and physiological factors. DESIGN Secondary analysis, prospective cohort study. SETTING Community and low-level care. PARTICIPANTS 177 older people (aged 82 ± 7 years) with mild to moderate CI (MMSE 11-23; ACE-R < 83). MEASUREMENTS Global cognition and six neuropsychological domains (memory, language, visuospatial, processing speed, executive function [EF], and affect) were assessed. Participants also underwent sensorimotor and balance assessments. Falls were recorded prospectively for 12 months. RESULTS The EF domain was most strongly associated with multiple falls (relative risk [RR]: 1.50, 95% CI: 1.18-1.91). Global cognition was not associated with falls (RR: 1.09, 95% CI: 0.92-1.30). Additional analyses showed that participants with poorer EF (median cutpoint) were more likely to be taking centrally acting medications and were less physically active. They also had significantly worse vision, reaction time, knee extension strength, balance (postural sway, controlled leaning balance), and higher physiological fall risk scores. Participants with poorer EF were 1.5 times (RR: 1.50, 95% CI: 1.03-2.18) more likely to have multiple falls. Mediational analyses demonstrated that reaction time and postural sway reduced the relative risk of EF on multiple falls by 31% (RR: 1.19, 95% CI: 0.81-1.74). CONCLUSIONS Within this sample of older people with mild to moderate CI, poorer EF increased the risk of multiple falls. This relationship was mediated by reaction time and postural sway,suggesting cognitively impaired older people with poorer EF may benefit from fall prevention programs targeting these mediating factors.
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Affiliation(s)
- Morag E Taylor
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Australia; Cognitive Decline Partnership Centre, Sydney Medical School, University of Sydney, Australia; Department of Medicine, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia.
| | - Stephen R Lord
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Australia; School of Public Health and Community Medicine, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
| | - Kim Delbaere
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Australia; School of Public Health and Community Medicine, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
| | - Susan E Kurrle
- Cognitive Decline Partnership Centre, Sydney Medical School, University of Sydney, Australia
| | - A Stefanie Mikolaizak
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Australia
| | - Jacqueline C T Close
- Falls, Balance and Injury Research Center, Neuroscience Research Australia, Australia; Department of Medicine, Prince of Wales Clinical School, University of New South Wales, Sydney, Australia
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