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Active+: Physical exercise and cognition


- candidate number26939
- NTR NumberNTR6503
- ISRCTNISRCTN no longer applicable
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR21-mrt-2017
- Secondary IDsU2017/01979/FRO Commissie Ethische Toetsing Onderzoek van de Open Universiteit
- Public TitleActive+: Physical exercise and cognition
- Scientific TitleThe Active+ physical activity program for elderly with limited mobility: effectiveness on cognitive functioning
- ACRONYM
- hypothesisIt is hypothesized that Active+ improves cognitive functioning in elderly with limited mobility through improvements in physical activity. As the literature is inconclusive on characteristics a PA program minimally needs to have in terms of type and intensity of PA, and whether type and intensity of PA matter, this study will make a detailed assessment of PA (type and intensity) and test moderating and mediating paths of PA on cognitive functioning.
- Healt Condition(s) or Problem(s) studiedChronic medically ill, COPD, Physical functioning, Chronic Heart Failure, Osteoporosis
- Inclusion criteria age ≥ 65
 having mobility limitations (Mobility limitations are defined as having a chronic condition (e.g. musculoskeletal and back disorder, COPD, rheumatism, osteoporosis, chronic heart disease) or other physical conditions (e.g. visual or hearing impaired) that impede.)
 able to read and speak Dutch
- Exclusion criteria no brain disorder and/or condition that could influence cognitive functioning or partaking in Active+.
- mec approval receivedno
- multicenter trialno
- randomisedno
- groupParallel
- Type2 or more arms, randomized
- Studytypeintervention
- planned startdate 1-jan-2018
- planned closingdate31-dec-2019
- Target number of participants540
- InterventionsThe research focuses on the effect of the Active + intervention on physical activity and cognitive function. The Active + intervention consists of several parts: (1) Active + intervention offers three computer-tailored physical activity advices (online or in writing) that aim to raise awareness of the participants amount of physical activity and motivates physical activity with options for physical activity planning and monitoring of progress. The exercise advice is tailor-made, based on personal characteristics (e.g. age and physical complaints), the actual exercise behavior, and psychological determinants of physical activity behavior. (2) The intervention will be integrated into a website where additional information can be found, as well as a user forum, examples of physical activity exercises and a possibility to ask an expert questions. The intervention aims to raise awareness of the subject of his own (lack of) physical activity, and encourage them to increase physical activity and maintain it. Participants thus have the choice of what they pick up from the program and what they do with it. The waiting list control group receives access to the Active + program after a year.
- Primary outcomeCognitive Functioning: Concept Shifting Test, Stroop Color Word, Auditory Verbal Learning Task
- Secondary outcomeCognitive Functioning: Letter Digit Substitution Test. Physical activity behavior (objectively: accelerometer; subjectively SQUASH). Also Quality of Life will be assessed with the SF-36 and Activities of Daily Living with the Katz’ ADL index.
- TimepointsAll participants are measured at baseline and after 6 and 12 months.
- Trial web site
- statusplanned
- CONTACT FOR PUBLIC QUERIESMSc Esmee Volders
- CONTACT for SCIENTIFIC QUERIESProf. Dr. L. Lechner
- Sponsor/Initiator Open University Nederland, Faculty of Psychology and Educational Sciences
- Funding
(Source(s) of Monetary or Material Support)
Hersenstichting Nederland, Open University, The Netherlands
- Publications
- Brief summaryResearch questions:
1) What are cognitive effects of the proven effective physical activity program ‘Active+’ in elderly with limited mobility?
2) How do type and intensity of physical activity, measured objectively by accelerometry, influence the magnitude of the cognitive effects?

Background: Although more and more evidence arises that physical activity (PA) has a positive effect on cognitive function (CF) of elderly people with mobility restrictions (ELM) (Colcombe & Kramer, 2013), there is still no suitable PA program that affects CF for ELM. Active + is a proven effective eHealth intervention that encourages moderate to vigorous PA in people over 50 (van Stralen, 2010; Peels, 2013; Peels, 2015). Participants will be given advice on the benefits of exercise, and get tips and examples of accessible exercises. Active+ does not impose behavior and does not organize activities itself. The intervention just motivates participants to get enough exercise and keep this level. The goal of this project is to understand the effects of the intervention on physical activity and CF. And to what extent the type and intensity of PA have an influence on the size of the cognitive effects.

Targetgroup: Inclusion criteria are: (a) age ≥ 65 (b) having mobility limitations; (c) able to read and speak Dutch (d) no brain disorder and/or condition that could influence cognitive functioning. Mobility limitations are defined as having a chronic condition (e.g. musculoskeletal and back disorder, COPD, rheumatism, osteoporosis, chronic heart disease) or other physical conditions (e.g. visual or hearing impaired) that impede mobility. This group was because it has hardly been studied, while it concerns a relatively large group in the Netherlands. Besides that, we expect that they also have positive effects from specific forms of physical activity on CF.

Design and power analysis: Phase 1: Project preparation: adapt Active+ to target group. Phase 2: Small scale feasibility test: 10 ELM and 4 intermediaries test Active+ materials and procedures. Phase 3: RCT: Active+ will be tested in a RCT with an intervention group receiving Active+ ( 3 PA advises in 4 months) and a waiting list control group (access to Active+ after a year). A baseline measurement and post-tests (6 and 12 months after baseline) are conducted. In both the intervention group and the control group ± 3850 persons will be invited. We expect that 10% of the invited persons will participate. Next to that we expect that only 70 percent is eligible. Therefore we need to include 270 participants per group (G*power: ES=.3; power=.8; ICC=.01 and drop-out 30%). Fase 4: Analysis en completion project.

Measurements: Phase 2: Participants will answer questions about the materials and procedures. Phase 3: Participants will be visited at home during the measurements by the researcher. A cognitive test battery is assessed (primary: Concept Shifting Test, Stroop Color Words, Verbal Learning Task, secondary Letter Digit Substitution Test). This will take ± 40 minutes. They also receive an accelerometer that they wear for a week on their waist. They also receive a questionnaire containing the SQUASH, a validated questionnaire for measuring physical activity. Moreover, questions are asked on personal preferences and barriers because they are necessary for the forming of the advice. In addition, also Quality of Life as measured by the SF-36 and Activities of Daily Living with the Katz ADL index are assessed. Completing the questionnaire will take approximately 30 minutes.

Expected results: It is expected that Active + will improve CF of ELM by increasing the level of PA. Also the moderating and mediating pathways of PA on CF will be examined. The results of the study are displayed in English-language articles that will lead to a dissertation. The results will be presented at several (inter) national congresses.
- Main changes (audit trail)
- RECORD21-mrt-2017 - 15-jul-2017


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