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The current project is a single-blinded, double-arm, 6-month randomized controlled trial aiming to assess the effects of a integrated intervention program on neurocognitive function with respect to event-related potential in adults aged 45-70 years. Additionally, the potential impacts of apolipoprotein epsilon-4 alleles and the brain-derived neurotrophic factor will be explored.
The current randomized clinical trial is designed to examine (1) whether a 6-month integrated intervention program (IIP) consisting of multiple exercise modalities, meditation, and social interaction could benefit neurocognitive function (e.g., inhibition) in middle-aged and older adults; (2) whether components of ERP will be influenced by the integrated intervention program; and (3) whether apolipoprotein E (ApoE) genotypes (ApoE e3/e4, ApoE e4/e4, ApoE e2/e2, ApoE e2/e3, ApoE e2/e4, and ApoE e3/e3), physical fitness, and brain-derived neurotrophic factor (BDNF) will influence the effects of an integrated intervention program on neurocognitive function and components of ERPs.
The study will randomly assign 100 eligible participants to either the IIP group or the control group in a 1:1 ratio. The IIP group will engage in 150 min of exercise per week, which consists of one 90-min on-site session and multiple online sessions, for 6 months. The control group will be invited to attend one 60-minutes online educational course per week for 6 months.
The neurocognitive function, the components of ERP, ApoE genotype, physical fitness, and BDNF will be assessed at the baseline (Baseline-Assessment) and the end of the 6-month intervention (Post-Assessment).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Integrated Intervention Group (IIG) | Experimental | The IIG attends 150 min exercise per week, which consists of one 90-min trainer-supervised program and multiple online sessions, for 6 months. Intervention: aerobic exercise, resistance exercise, coordinative exercise, flexibility, social interaction, and meditation. |
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| Control Group | Other | The control group is invited to attend one 60-min online educational course per week for 6 months. Intervention: 60-min online educational program. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Integrated Intervention Group (IIG) | Behavioral | The IIG attends 150 min exercise per week, which consists of one 90-min trainer-supervised session and multiple online sessions for 6 months. Each session consists of (1) warm-up, (2) resistance exercise and flexibility exercise, (3) resistance exercise and coordinative exercise from the "Eastern exercise" perspective, (4) social interaction exercise, and (5) cool-down and meditation. |
| Measure | Description | Time Frame |
|---|---|---|
| Inhibition: Changes in Stroop test performance | The computerized Stroop test is administrated to assess participants' inhibitory function, and the changes in Stroop test performance from baseline to end of the intervention (i.e., month 6) will be examined. | 30 minutes each at the baseline and at month 6 |
| Changes in neuroelectrical activities | The neuroelectrical activities during the computerized cognitive tasks is recorded and analyzed using the Neuroscan system. Changes in the neuroelectrical activities from baseline to end of the intervention (i.e., month 6) will be examined. | 60 minutes each at baseline and at month 6 |
| Measure | Description | Time Frame |
|---|---|---|
| ApoE genotype | A 6 mL serum sample is drawn from the antecubital veins. Based on the genetic biomarkers (rs429358 and rs7412), participants' ApoE genotype is determined at the baseline. | 5 minutes at baseline |
| Blood neurotrophic marker: Changes in brain-derived neurotrophic factor (BDNF) levels |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Yu-Kai Chang, PhD | Contact | +886277493220 | yukaichangnew@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Yu-Kai Chang, PhD | Department of Physical Education and Sport Sciences, National Taiwan Normal University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yu-Kai Chang | Not yet recruiting | Taipei | 106 | Taiwan |
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| ID | Term |
|---|---|
| D035061 | Control Groups |
| ID | Term |
|---|---|
| D015340 | Epidemiologic Research Design |
| D004812 | Epidemiologic Methods |
| D008919 | Investigative Techniques |
| D012107 | Research Design |
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| Control Group | Behavioral | The Control Group is informed to maintain their lifestyles and invited to attend one 60-min online educational course per week. The participants are required to provide their physical activity behavior once every month for 6 months (6 times). |
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A 6 mL serum sample is drawn from the antecubital veins to assess BDNF levels, and changes in BDNF levels from baseline to end of intervention (i.e., month 6) will be examined. |
| 5 minutes each at baseline and at month 6 |
| Physical fitness measurements: Changes in aerobic fitness | Participants' aerobic fitness is assessed using the submaximal cycle ergometer test, and changes in aerobic fitness from baseline to end of intervention (i.e., month 6) will be examined. | 30 minutes each at baseline and at month 6 |
| Physical fitness measurements: Changes in muscular fitness | Muscular fitness is assessed using either the push-up test/30 seconds or the chair stand test/30 seconds, and changes in muscular fitness from baseline to end of intervention (i.e., month 6) will be examined. | 15 minutes each at baseline and at month 6 |
| Physical fitness measurements: Changes in flexibility | Flexibility is assessed using the sit-and-reach test, and changes in flexibility from baseline to end of intervention (i.e., month 6) will be examined. | 15 minutes each at baseline and at month 6 |
| Psychosocial measures: Changes in mindfulness | Mindfulness level is assessed using the 15-items (1-6 Likert scale) Chinese version of the Mindful Attention Awareness Scale (MAAS) questionnaire. Higher mean scores of the 15 items indicate higher levels of dispositional mindfulness. Changes in mindfulness scores from baseline to end of intervention (i.e., month 6) will be examined. | 5 minutes each at baseline and at month 6 |
| Psychosocial measures: Changes in depression | Geriatric Depression Scale (GDS-15) is utilized to assess older adults' depression levels using 15 'Yes/No' items. Scores between 5 and 9 indicate mild symptoms, and a score of 10 and above indicates moderate symptoms. Changes in depression from baseline to end of intervention (i.e., month 6) will be examined. | 5 min each at the Baseline-Assessment and at the Post-Assessment |
| Psychosocial measures: Changes in sleeping quality | The Chinese version of the Pittsburgh Sleep Quality Index will be used to assess individual's general sleep quality over a 1-month time interval. Participants complete 9 questions, and lower scores reflect better sleep quality. Changes in sleep quality from baseline to end of intervention (i.e., month 6) will be examined. | 5 minutes each at baseline and at month 6 |
| Psychosocial measures: Changes in health-related quality of life | Health-related quality of life via the 24-items (1-5 Likert scale) WHOQOL-OLD-Taiwan is used to measure the quality of life in older persons. The higher scores indicate better quality of life. Changes in health-related quality of life from baseline to end of intervention (i.e., month 6) will be examined. | 10 minutes each at baseline and at month 6 |
| Yu-Kai Normal Chang | Recruiting | Taipei | 162 | Taiwan |
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| D008722 | Methods |