Skip to main content
OpenTrials
Completed

NCT Number: NCT05652140

Cardiorespiratory Fitness, Apolipoprotein E Genotype, and Cognitive Functions: A Prospective Study

The current research project aims to investigate the interaction of cardiorespiratory fitness (CRF) and the ApoE genotype with neurocognitive functions.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Age range

50 year–70 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Department of Physical Education and Sport Sciences, National Taiwan Normal University

Taipei, 106308, Taiwan

About this study

The current research project aims to investigate the interaction of cardiorespiratory fitness (CRF) and the ApoE genotype with neurocognitive functions. The three main purposes of the current research project seek to achieve:

  • An exploration of the associations of, as well as the interactions between, CRF assessed at the Baseline Stage, and the ApoE genotype, along with cognitive functions in cognitively healthy late-middle-aged older adults.
  • The employing of an event-related potential (ERP) to investigate the associations between the baseline CRF, the ApoE genotype, and cognitive functions in cognitively healthy late-middle-aged older adults, as well as the potential underlying neuroelectrical mechanisms.
  • An investigation of the interactions between the changes of CRFs assessed at the Baseline and the Follow-Up Stages and the ApoE genotype in relation to neurocognitive function, as well as the underlying neuroelectrical mechanisms, in cognitively healthy late-middle-aged older adults.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • right handed
  • no history of cardiorespiratory disease
  • normal or corrected-to-normal vision based on the 20/20 standard
  • no risk of performing physical activities, as measured by the Physical Activity Readiness Questionnaire

Exclusion criteria

  • the scores of Mini-Mental Status Examination (MMSE) < 25 and cognitively intact upon study entry
  • history of psychiatric or neurological diseases
  • color-blindness

Treatment and study plan

Data collections

Other

Data collections of cognitive function, neuroelectrical activities, ApoE genotype, and physical fitness.

Primary outcomes

  1. Changes in Inhibitory Performance: Stroop Task

    Time frame: 30 minutes each at the Baseline and the Follow-Up visit at Month 18

    Inhibitory performance was assessed using the computerized Stroop task at the Baseline and at the Follow-Up assessments. The difference in response time (RT) between the Baseline and the Follow-Up Stages was calculated as the index of the inhibitory performance.

  2. Changes in Neuroelectrical Activities

    Time frame: 30 minutes each at the Baseline and the Follow-Up visit at Month 18

    The neuroelectrical activities (P3 component) during the Stroop task were recorded and analyzed using the Neuroscan system. The difference in P3 amplitudes of incongruent trials between the Baseline and the Follow-Up Stages was calculated as the index of the neuroelectrical index.

Secondary outcomes

  1. Number of Participants for Whom ApoE Genotype Was Determined

    Time frame: 5 minutes at the Baseline Stage.

    Participants' ApoE genotype was determined based on the genetic biomarkers (rs429358 and rs7412)

  2. Physical Fitness Measurements: Changes in Aerobic Fitness

    Time frame: 30 minutes each at the Baseline and the Follow-Up visit at Month 18

    Participants' aerobic fitness was estimated using the submaximal cycle ergometer test at the baseline and at the follow-up assessments. The difference in maximum oxygen consumption (VO2 max) between the Baseline and the Follow-Up Stages was calculated as the index of aerobic fitness.

Other outcomes

  1. Changes in Higher Order Executive Performance: Tower of London Test

    Time frame: 30 minutes each at the Baseline and the Follow-Up Stages.

    Higher order executive performance was assessed using the Tower of London Test at the baseline and at the follow-up assessments. Changes in higher order executive performance from Baseline to the Follow-Up Stages were assessed.

Sponsors and collaborators

Lead sponsor

National Taiwan Normal University

Other

Registry information

Official study title

Cardiorespiratory Fitness and the Apolipoprotein E (ApoE) Genotype and Its Interaction With Cognitive Functions and Cognitive Decline in Late-Middle-Aged Older Adults: A Prospective Study

Important dates

Study start
2018
Primary completion
2021
Study completion
2021
First posted
Dec 15, 2022
Registry last updated
Nov 15, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.