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Exercise Environment and Cognitive Performance in Older AdultsNCT07728786

Outdoor vs. Indoor Exercises and Cognitive Functions in Older Adults

An observational study of Exercise Environment and Cognitive Performance in Older Adults, run by Muğla Sıtkı Koçman University.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This observational, cross-sectional study aims to comparatively investigate the effects of outdoor versus indoor exercise environments on overall cognitive performance and its specific sub-domains (attention, memory, and executive functions) in older adults with similar physical capacities. Read more about this study

Who is it for?
Ages 60 years and olderHealthy volunteers can take part
How many people
100 participants
Where
No sites listed yet
Study dates
1 Sep 2026to 31 Dec 2026
How long will I take part?
1 Year
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The study population consists of older adults aged 60 and over who are actively enrolled as students at Köyceğiz Tazelenme University and Erzurum Tazelenme University in Türkiye. This population represents a unique cohort of older individuals engaged in lifelong learning and structured active aging programs. To investigate the specific role of the exercise environment on cognitive reserve, the sample will be drawn from this population using purposive sampling, selecting individuals who regularly participate in either structured outdoor or indoor physical activities. The population is structurally characterized by functionally independent older adults who exhibit homogeneous physical baseline capacities-verified via objective clinical performance benchmarks-and are free from advanced neurological or debilitating physical conditions.

Who may be able to join

  • Must be aged 60 years or older.
  • Must be currently enrolled as a student at Köyceğiz Tazelenme University or Erzurum Tazelenme University.
  • Must participate regularly in either structured outdoor or indoor physical exercises.
  • Must possess sufficient sensory, visual, hearing, and cognitive capacity to comprehend and complete the behavioral and cognitive tests.
  • Must demonstrate similar and homogenous functional physical capacity as verified by the pre-screening benchmarks of the 6-Minute Walk Test and the 30-Second Chair Stand Test.
  • Must provide written informed consent voluntarily.

Who cannot join

  • Being under the age of 60.
  • Having a clinical diagnosis of an advanced neurological disorder, including dementia or severe cognitive impairment.
  • Having severe acute or chronic physical disabilities, musculoskeletal injuries, or medical conditions that medically prevent or restrict safe exercise participation.
  • Having severe uncorrected sensory (visual or hearing) deficits or cognitive impairments that prevent the comprehension of test instructions or completion of the assessments.
  • Refusing to provide written informed consent or wishing to withdraw from the evaluation process.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Meliha Güçlü Saz, MSc, PhD Student contact

+905374931504

melihaguclu@mu.edu.tr

About this study

Official title: The Relationship of Outdoor and Indoor Exercises With Cognitive Functions in Older Individuals With Similar Physical Capacity: A Sample of Renewal Universities

This observational, cross-sectional study aims to comparatively investigate the effects of outdoor versus indoor exercise environments on overall cognitive performance and its specific sub-domains (attention, memory, and executive functions) in older adults with similar physical capacities. Utilizing a 2 (Exercise Environment: Outdoor vs. Indoor) x 2 (Center: Köyceğiz vs. Erzurum Tazelenme University) factorial design, a sample of 100-120 participants aged 60 and over will be recruited via purposive sampling. To ensure sample homogeneity regarding functional capacity, participants will undergo pre-screening with the 6-Minute Walk Test (6MWT) and the 30-Second Chair Stand Test, while individuals with advanced neurological disorders or severe physical impairments will be excluded. Data will be collected through a Sociodemographic Information Form, the Physical Activity Scale for the Elderly (PASE) to monitor baseline activity parameters, and the Addenbrooke's Cognitive Examination (ACE-III) Turkish Version A to assess cognitive outcomes. Ultimately, this study aims to elucidate the potential predictive role of the exercise environment on cognitive health in late life and explore whether the cognitive benefits of physical activity vary interactively across different geographic centers.

Read the detailed description

This observational, cross-sectional study is designed with a comprehensive quality assurance and operational framework to rigorously investigate the impact of exercise environments on cognitive health in older adults. To ensure data integrity and minimize transcription errors, a multi-stage quality control protocol will be enforced, including double-data entry by two independent investigators and automated database range checks for score boundaries (e.g., restricting the total score of Addenbrooke's Cognitive Examination [ACE-III] between 0 and 100, and validating the age threshold as ≥ 60). Source data verification will be conducted by cross-referencing self-reported chronic conditions and pharmacological backgrounds with institutional health registries where applicable. Operationally, the study follows a strict six-stage Standard Operating Procedure (SOP). Potential participants from Köyceğiz and Erzurum Tazelenme Universities will first undergo a face-to-face pre-screening via a structured Participant Eligibility Form to confirm inclusion criteria, which mandate being aged 60 or older, participating in regular physical exercise, and possessing sufficient sensory and cognitive capacity to complete behavioral testing, while excluding individuals with advanced neurological disorders such as dementia.Following informed consent, participants' functional baseline homogeneity will be verified through validated physical performance metrics, specifically the 6-Minute Walk Test (6MWT) for cardiovascular endurance and the 30-Second Chair Stand Test for lower extremity muscle strength. Based on their primary exercise habits, participants will be classified into the primary independent variables: outdoor or indoor exercise environments. Subsequently, cognitive outcomes across domains of attention, memory, verbal fluency, language, and visuospatial skills will be assessed individually in a controlled, distraction-free environment using the ACE-III Turkish Version A, while past-week physical activity levels will be quantified using the Physical Activity Scale for the Elderly (PASE). Missing data will be managed strictly; variables with less than 15% missing items will be handled via sub-domain mean imputation, whereas cases exceeding this threshold or missing primary cognitive components will be excluded via listwise deletion. Statistical analyses will be executed using IBM SPSS Statistics, utilizing independent samples t-tests or non-parametric Mann-Whitney U tests depending on normality distributions evaluated via Kolmogorov-Smirnov and Shapiro-Wilk criteria. Ultimately, Pearson or Spearman correlation coefficients will assess the relationship between exercise parameters and cognitive scores, and multiple linear regression or analysis of covariance (ANCOVA) will be deployed to isolate the predictive value of the exercise environment on cognitive performance while strictly controlling for confounding covariates such as age, education, baseline physical activity (PASE), and functional capacities (6MWT and chair stand scores), with significance established at p < 0.05.

Keywords
Cognitive Dysfunction, Healthy Aging, Cognitive Performance, Green Exercise
Medical subject headings
Cognitive Dysfunction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT07728786
Study groupRoleWhat they receive
OutdoorThis cohort consists of older adults aged 60 and over, enrolled in Tazelenme University, who regularly participate in physical exercises in outdoor environments. Participants in this group maintain similar functional and physical capacities as verified by the 6-Minute Walk Test and the 30-Second Chair Stand Test, and they do not have any advanced neurological or severe physical impairments.
IndoorThis cohort consists of older adults aged 60 and over, enrolled in Tazelenme University, who regularly participate in physical exercises in indoor environments. Participants in this group maintain similar functional and physical capacities as verified by the 6-Minute Walk Test and the 30-Second Chair Stand Test, and they do not have any advanced neurological or severe physical impairments.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Cognitive Performance and Sub-domains via ACE-III

    Cognitive functions will be assessed using the Addenbrooke's Cognitive Examination-III (ACE-III) Turkish Version A. The test comprehensively evaluates five cognitive domains: attention, memory, verbal fluency, language, and visuospatial skills. Total scores range from 0 to 100, and sub-domain scores range as follows: Attention (0-18), Memory (0-26), Verbal Fluency (0-14), Language (0-26), and Visuospatial (0-16). Higher total and sub-domain scores indicate better cognitive performance and higher cognitive reserve.

    Measured: Baseline (Data will be collected during a single cross-sectional assessment session for each participant).

Secondary outcomes (1)
  1. Self-Reported Physical Activity Level via PASE

    Participants' physical activity levels over the past week will be measured using the Physical Activity Scale for the Elderly (PASE). The scale evaluates leisure, household, and occupational physical activities through structured questions. Higher total scores on the scale indicate a higher level of physical activity and engagement in daily life movements.

    Measured: Baseline (Data will be collected during a single cross-sectional assessment session for each participant).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Jul 2026
  2. Study start1 Sep 2026 (estimated)
  3. Primary completion1 Dec 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
100 participants (estimated)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT07728786
Sponsor's protocol ID
2026-ETÜ-0124
Status last verified
Jul 2026
First submitted
16 Jun 2026
Last updated
27 Jul 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data (IPD) will not be shared publicly to maintain participant confidentiality and strictly protect personal privacy in accordance with the national Personal Data Protection Law (KVKK) and the institutional ethics committee guidelines. Since the data collected includes comprehensive sociodemographic details and physical/cognitive functional health scores of vulnerable older adults, public sharing of raw individual datasets is restricted by the institutional ethical clearance. However, aggregated statistical results and study outcomes will be fully accessible through peer-reviewed academic publications.

Publications

  • Albinet, C. T., Boucard, G., Bouquet, C. A., & Audiffren, M. (2012). Processing speed and executive functions in cognitive aging: How to disentangle their mutual relationship? Brain and Cognition, 79(1), 1-11. https://doi.org/10.1016/j.bandc.2012.02.001 Alcazar, J., Kamper, R. S., Aagaard, P., Haddock, B., Prescott, E., Ara, I., & Suetta, C. (2020). Relation between leg extension power and 30-s sit-to-stand muscle power in older adults: validation and translation to functional performance. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-73395-4 Bautmans, I., Lambert, M., & Mets, T. (2004). The six-minute walk test in community dwelling elderly: Influence of health status. BMC Geriatrics, 4, 1-9. https://doi.org/10.1186/1471-2318-4-6 Biazus-Sehn, L. F., Schuch, F. B., Firth, J., & Stigger, F. de S. (2020). Effects of physical exercise on cognitive function of older adults with mild cognitive impairment: A systematic review and meta-analysis. In Archives of Gerontology and Geriatrics (Vol. 89). Elsevier Ireland Ltd. https://doi.org/10.1016/j.archger.2020.104048 Falck, R. S., Davis, J. C., Best, J. R., Crockett, R. A., & Liu-Ambrose, T. (2019, July 1). Impact of exercise training on physical and cognitive function among older adults: a systematic review and meta-analysis. In Neurobiology of Aging. Elsevier Inc. https://doi.org/10.1016/j.neurobiolaging.2019.03.007 Gallardo-Gómez, D., del Pozo-Cruz, J., Noetel, M., Álvarez-Barbosa, F., Alfonso-Rosa, R. M., & del Pozo Cruz, B. (2022). Optimal dose and type of exercise to improve cognitive function in older adults: A systematic review and bayesian model-based network meta-analysis of RCTs. In Ageing Research Reviews (Vol. 76). Elsevier Ireland Ltd. https://doi.org/10.1016/j.arr.2022.101591 Glisky, E. L., Woolverton, C. B., McVeigh, K. S., & Grilli, M. D. (2022). Episodic Memory and Executive Function Are Differentially Affected by Retests but Similarly Affected by Age in a Longitudinal Study of Normally-Aging

Questions about this trial

What is this clinical trial studying?

An observational study of Exercise Environment and Cognitive Performance in Older Adults, run by Muğla Sıtkı Koçman University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 27 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Meliha Güçlü Saz, MSc, PhD Student (+905374931504, melihaguclu@mu.edu.tr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Cognitive Performance and Sub-domains via ACE-III (time frame: Baseline (Data will be collected during a single cross-sectional assessment session for each participant).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07728786, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jul 2026; AzTrials last refreshed its copy on 7 Nov 2026.

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