Alzheimer Disease 2 Due to Apoe4 Isoform
Conditions
Keywords
aerobic exercise, APOE genotype, event-related potential, executive function, exercise prescription
Brief summary
This study explores the acute exercise effect on neurocognitive function and also its potential moderators in an exercise setting and Apolipoprotein E (APOE) genetic risk.
Detailed description
Acute exercise has emerged as a modifier to multiple aspects of cognitive function; however, its effect on populations with different risks of Alzheimer's disease (AD) and the role of exercise variance and APOE genotype within the effect reminds underestimated. The current study aimed to examine the acute exercise effect on neurocognitive function from behavioral and neuroelectric perspectives among cognitively normal late-middle-aged adults. Additionally, we determined whether variations in exercise intensity and duration and the presence of the APOE ɛ4 allele modulated the effect.
Interventions
BEHAVIORALLI-40
Participants were asked to complete a volume-matched light-intensity exercise for 30-min. The exercise volume was pre-determined based on the energy expenditure (kcal) calculated with 5-min warm-up stage, 20-min main exercise stage (i.e., moderate intensity as 50%-60 % heart rate reserve, HRR), and 5-min cool-down stage.
BEHAVIORALMI-30
Participants were asked to complete a volume-matched moderate-intensity exercise for 20-min. The exercise volume was pre-determined based on the energy expenditure (kcal) calculated with 5-min warm-up stage, 20-min main exercise stage (i.e., moderate intensity as 50%-60 % heart rate reserve, HRR), and 5-min cool-down stage.
BEHAVIORALHI-16
Participants were asked to complete a volume-matched high-intensity exercise for 16-min. The exercise volume was pre-determined based on the energy expenditure (kcal) calculated with 5-min warm-up stage, 20-min main exercise stage (i.e., moderate intensity as 50%-60 % heart rate reserve, HRR), and 5-min cool-down stage.
Sponsors
National Taiwan Normal University
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
The present study adopted a counterbalanced design. All participants were instructed to complete four counterbalanced treatments: a) longer duration (LI-40), b) moderate-intensity with 30 min (MI-30), c) high-intensity with shorter duration (HI-16), and d) control treatments.
Eligibility
Sex/Gender
ALL
Age
50 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
1. Adults aged between 50 and 70 years old 2. Normal or corrected-to-normal vision based on the minimal 20/20 standard 3. Cognitively normal as mini-mental state examination scores (MMSE) \> 26
Exclusion criteria
1. Neurological or psychiatric disorders 2. Cardiovascular disease 3. Risk of cardiovascular fitness assessment based on the Physical Activity Readiness Questionnaire (PAR-Q) 4. Red-green color blindness.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Stroop task: Response time | Participants were required to complete the Stroop task approximately 30 min following the cessation of each acute exercise treatment or the 30-min reading. | A computerized Stroop task was used to assess participants' inhibitory control and basic information processing. The response time of the correct responses was calculated for the first behavioral index. |
| Stroop task: Accuracy | Participants were required to complete the Stroop task approximately 30 min following the cessation of each acute exercise treatment or the 30-min reading. | A computerized Stroop task was used to assess participants' inhibitory control and basic information processing. The accuracy was calculated for the second behavioral index. |
| Event-related potential: P3 amplitude | Participants were required to complete the Stroop task while EEG activity was continuously recorded approximately 30 min following the cessation of each acute exercise treatment or the 30-min reading. | The event-related potential from parietal electrodes (i.e., P3, Pz, and P4) were initially outputted for the mean P3 amplitude; the averaged mean P3 amplitudes from parietal electrodes was then calculated as the neuroelectrical indices. |
Countries
Taiwan
Outcome results
None listed