Cognitive Control and Physical Exercise

NCT ID: NCT01183819

Last Updated: 2015-08-05

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: NA
• Total Enrollment: 12 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2010-02-28
• Study Completion Date: 2015-06-30

Brief Summary

The purpose of this study is to test the hypothesis that aerobic exercise and a computer-based cognitive intervention leads to improved cognitive function accompanied by increases in gray matter density and changes in functional magnetic resonance imaging (fMRI) patterns of task-related activation.

Detailed Description

Epidemiological evidence suggest that a set of lifetime exposures including educational and occupational attainment and leisure activities later in life are associated with more preserved cognitive and day-to-day functioning and reduced risk of dementia. However, the specific set of activities that can maintain or improve function in late life are relatively unexplored. In the current study, we will test the combined efficacy of two such activities: cognitive training and aerobic exercise. These activities have been shown to increase cognitive function and brain plasticity, respectively. The cognitive intervention that we will use is training with the Space Fortress task. This task is aimed at improving cognitive control processes that underlie multiple activities and are particularly affected by aging. We hypothesize that combining these two interventions will produce synergistic effects that will significantly improve cognitive and day-to-day function in healthy older adults.

A total of 90 cognitively-healthy older adults will be recruited and randomly assigned to one of three conditions: control video game, control exercise and combined exercise and space fortress training. A range of cognitive and day-to-day functioning will be assessed at baseline and after three months of training. We will also assess compliance with a home-based version of the training program from the end of the 3-month laboratory-based training and the effect of this compliance on measures of cognition and day-to-day functioning. We hypothesize that the interventions can be sustained over a 1-year period and that larger benefits will be observed in participants that adhere to the protocol.

We also propose two complementary approaches to investigating the neural correlates of the beneficial effects of aerobic exercise on cognition: 1) imaging -- we will use a combination of structural, metabolic, and cognitive activation fMRI studies to evaluate the neural substrates of the effect of aerobic exercise on cognition. 2) important correlates -- we will explore the effects of apolipoprotein E (APOE) genotype, inflammatory markers and cognitive reserve on the cognitive effects of aerobic exercise.

Conditions

Cognitive Function; Day-to-Day Function

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: SINGLE

Study Groups

Space Fortress and Exercise

Participants engage in aerobic exercise 4 times week and Space Fortress sessions 3 times a week for a total of 12 weeks.

Group Type: EXPERIMENTAL

Space Fortress

Intervention Type: BEHAVIORAL

Space Fortress sessions 3 times a week for 12 weeks

Aerobic Exercise

Intervention Type: BEHAVIORAL

Aerobic Exercise 4 times a week for 12 weeks

Control Games and Exercise

Participants engage in aerobic exercise 4 times a week and control game sessions 3 times a week for a total of 12 weeks.

Group Type: ACTIVE_COMPARATOR

Aerobic Exercise

Intervention Type: BEHAVIORAL

Aerobic Exercise 4 times a week for 12 weeks

Control Games

Intervention Type: BEHAVIORAL

Control games session 3 times a week for 12 weeks

Control Games and Stretching

Participants engage in stretching/toning exercises 4 times a week and control game sessions 3 times a week for a total of 12 weeks.

Group Type: ACTIVE_COMPARATOR

Stretching

Intervention Type: BEHAVIORAL

Stretching/Toning exercise 4 times a week for 12 weeks.

Control Games

Intervention Type: BEHAVIORAL

Control games session 3 times a week for 12 weeks

Interventions

Space Fortress

Space Fortress sessions 3 times a week for 12 weeks

Intervention Type: BEHAVIORAL

Aerobic Exercise

Aerobic Exercise 4 times a week for 12 weeks

Intervention Type: BEHAVIORAL

Stretching

Stretching/Toning exercise 4 times a week for 12 weeks.

Intervention Type: BEHAVIORAL

Control Games

Control games session 3 times a week for 12 weeks

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

1. Age 60-75

2. English-speaking

3. Strongly right-handed

4. BMI > 18.5 and < 32

5. Post-menopausal (women only): no estrogen replacement therapy

6. Sedentary: VO2max < 36 ml/kg/min for men age 60-75; < 29 ml/kg/min for women age 60-75 (determined using Jones Formula Men = (60-(0.55*AGE)) Women = (48-(.37*AGE))

Exclusion Criteria

1. MRI contraindications (e.g., metallic implants, pacemaker, weight > 350 lbs, waist > 55")

2. Hearing impaired/hearing aids, unable to read newspaper at arm's length with corrective lenses

3. Objective cognitive impairment

4. Ischemic changes, abnormal blood pressure responses, or any significant ectopy during aerobic capacity testing

5. Cardiovascular disease

6. Uncontrolled high blood pressure (systolic blood pressure ≥ 180 mmHg; or diastolic blood pressure ≥ 105 mmHg on two measures)

7. Current or recent (evidence of disease x 5 years) non-skin neoplastic disease or melanoma

8. Active hepatic disease (not a history of hepatitis) or primary renal disease requiring dialysis, primary untreated endocrine diseases, e.g., Cushing's disease or primary hypothalamic failure or insulin dependent diabetes (Type I or II).

9. HIV infection

10. Pregnant or lactating (participation allowed 3 months after ceasing lactation

11. Other medical disorders judge to interfere with study

12. Medications that target CNS (e.g., neuroleptics, anticonvulsants, antidepressants, benzodiazepines) within the last month

13. Women: any selective estrogen receptor modulator or aromatase inhibitor Men: androgen ablation/deprivation hormonal therapies

14. Any history of psychosis or electroconvulsive therapy

15. Psychotic disorder (lifetime)

16. Current or recent (within past 12 months) alcohol or substance abuse or dependence. Recent use (past month) of recreational drugs.

17. Brain disorder such as stroke, tumor, infection, epilepsy, multiple sclerosis, degenerative diseases, head injury, mental retardation

18. Imaged cortical stroke or large subcortical lacunae or infarct or space-occupying lesion (≥ 2 cubic cm). Other findings, e.g., periventricular caps or small white matter hyperintensities, do not result in exclusion

19. Diagnosed learning disability, dyslexia

• Minimum Eligible Age: 60 Years
• Maximum Eligible Age: 75 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

National Institute on Aging (NIA)

NIH

Sponsor Role: collaborator

Columbia University

OTHER

Sponsor Role: lead

Responsible Party

Yaakov Stern

Professor of Clinical

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Yaakov Stern, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Sergievsky Center Columbia University Medical Center

Richard Sloan, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Behavioral Medicine Columbia University Medical Center

Locations

Columbia University Medical Center

New York, New York, United States

Countries

United States

Other Identifiers

R01AG034178

Identifier Type: NIH

Identifier Source: secondary_id

View Link

AAAE5848

Identifier Type: -

Identifier Source: org_study_id