Alzheimer's Disease, MCI Due to AD, Dementia Alzheimers
Conditions
Keywords
Alzheimer's disease, MCI due to AD, Language, Speech, Motor, Gait, Hand grip strength, Fluency
Brief summary
The goal of this observational cross-sectional study is to explore the characteristics of language, speech, and motor function in persons with Mild Cognitive Impairment due to Alzheimer's disease (MCI due to AD) and persons with mild and moderate Alzheimer's disease (AD). This study aims to: * Explore motor, speech, and language functions in MCI due to AD and mild and moderate AD. * Combine the characteristics of motor, language, and speech functions to gain more insight into the association of language, speech, and motor changes during MCI due to AD and mild and moderate AD. Researchers will compare the outcomes to an age-matched control group without cognitive impairment. Participants will undergo: * Two motor function tests to assess gait and hand grip strength. * Four language and speech function tests to assess spontaneous speech and verbal fluency..
Interventions
BEHAVIORALGAITRite walkway system OR 4-meter walking speed test
Gait will be assessed by the GAITRite walkway system OR the 4-meter walking speed test
BEHAVIORALJamar hand dynamometer
Hand grip strength will be assessed by a Jamar hand dynamometer
BEHAVIORALPicture description task
Characteristics Dutch/Frisian language Language and speech will be assessed by the Cookie Theft Picture-task (a picture description task from Berube et al., 2019)
BEHAVIORALAutobiographical semi-structured conversation
Characteristics Dutch/Frisian language and speech will be assessed by an autobiographical semi-structured conversation
BEHAVIORALVerbal fluency
The mental lexicon of Dutch/Frisian language will be assessed by a two verbal fluency tests, including letter fluency and categorical fluency
Sponsors
University of Groningen
Hanze University of Applied Sciences Groningen
Study design
Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
A subject with MCI with a likelihood of underlying AD pathophysiology must meet the following criteria: * Established diagnosis of MCI due to AD with a likelihood according to NIA-AA criteria (Albert et al., 2011). * A score of stage three on the Global Deterioration Scale (GDS) (Reisberg et al., 1982). A subject with AD must meet the following criteria: * Established diagnosis of AD (amnestic or non-amnestic) or etiologically mixed presentation of AD according to DSM-5 (American Psychiatric Association, 2013) or NINCDS-ARDRA criteria (Jack et al., 2018; McKann et al., 2011). * The following scores on the Global Deterioration Scale (GDS): four for mild AD, five for moderate AD (Reisberg et al., 1982). All subjects of the control group must meet the following criteria: * A score of stage one or two on the Global Deterioration Scale (GDS) (Reisberg et al., 1982). * They are age-matched with the MCI due to AD or AD patients included in the study. All subjects must meet the following criteria: * First language is Dutch and/or Frisian. * Able to walk independently with or without walking aid. * Able to squeeze with each hand.
Exclusion criteria
A subject with MCI due to AD or AD who meets the following criteria will be excluded from participation in this study: * Having a neurological or neurodegenerative disease or disorder that may be contributing to cognitive impairment above and beyond that caused by AD or mixed AD; Down's syndrome, other subtypes of dementia, autism spectrum disorder. * Having an established diagnosis of a psychiatric disorder, e.g. schizophrenia, depression. All subjects in the control group who meets following criteria will be excluded from participation in this study: ● Suffers from a neurological, neurodegenerative or psychiatric disease or disorder. All subjects in any group who meet any of the following criteria will be excluded from participation in this study: * Hearing loss (with or without hearing aid) that affects communication. * Vision loss (with or without glasses or lenses) that affects communication. * History of language problems, speech problems or dyslexia. * Suffers from additional disorders or diseases which may limit gait, hand grip strength, language and/or speech. * Medication use that influence gait, hand grip strength, speech or language performance at time of testing. * Being terminally ill (i.e., life expectancy < 2 weeks according to the attending physician).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Hand grip strength | 4 months | Jamar hand dynamometer |
| Language and speech characteristics of spontaneous speech | 4 months | Autobiographical semi-structured interview and a picture description task (The Cookie Theft Picture (Berube et al., 2019)) |
| Verbal fluency | 4 months | Naming animals and professions |
| Letter fluency | 4 months | Naming letters starting with the letters D and A |
| Temporal and spatial parameters of gait | 4 months | Gaitrite walkway system (GAITRite) or 4-meter walking speed test |
Countries
Netherlands
Contacts
Primary ContactMarlies Oegema, Master
Outcome results
None listed