NCT01709799

Brief Summary

The purpose of this research study is to help scientists and health care providers learn more about preventing dementia and brain disease in older adults. There is an urgent need to develop strategies to prevent or slow down memory loss and brain function decline in the elderly. In this study, the investigators hope to learn how physical exercise and a brain training program work together to improve thinking and memory in older adults. Specifically, these aims include:

  • Learning whether physical activities (like biking or treadmill walking or Wii Fit games) will help improve the benefits of a brain training program. Based on preliminary results and that in the literature, the investigators anticipate greater cognitive benefits in the Exercise + Cognitive training groups than the Cognitive Training alone group.
  • To determine whether the benefits of adding exercise will occur quickly or develop more gradually over time. The investigators suspect that a major benefit of exercise pre-dosing will occur by the 12th week of the program.
  • To examine whether Wii-Fit exercise games cause similar effects on brain training as traditional exercise programs such as biking or walking. Although several recent studies have raised questions about the true aerobic benefit of exergames such as Wii-Fit Plus, other evidence suggests that these weaker aerobic benefits may be offset by the greater novelty and interest level afforded by exergames.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
64

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2010

Completed
2.7 years until next milestone

First Submitted

Initial submission to the registry

September 18, 2012

Completed
1 month until next milestone

First Posted

Study publicly available on registry

October 18, 2012

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2015

Completed
2 months until next milestone

Results Posted

Study results publicly available

June 22, 2015

Completed
Last Updated

June 22, 2015

Status Verified

June 1, 2015

Enrollment Period

5.3 years

First QC Date

September 18, 2012

Results QC Date

June 3, 2015

Last Update Submit

June 3, 2015

Conditions

Keywords

Cognitive TrainingAgingSeniors

Outcome Measures

Primary Outcomes (5)

  • Bird Safari Subtest of PositScience Insight

    Participants identify the bird that is different from the others as it flashes briefly on screen. The test measures visual speed and precision. The test is adaptive, and becomes more difficult with practice in that bird pairs get more similar, backgrounds get more complex, and distance from the center increases. The raw score is in milliseconds. As participants improve, the birds flash for fewer milliseconds, giving them a lower (better) score. Thus, LOWER SCORES reflect IMPROVEMENT These scores have been converted to T-scores (standardized scores with an average of 50 and standard deviation of 10). The formula used was: T-score = ((((participant score minus sample mean at baseline) / (sample standard deviation at baseline) ) \* 10) + 50)

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

  • Jewel Diver Subtest of PositScience Insight

    Participants track target objects as they move around the screen. This is a measure of divided attention. As participants master the task, it is made more difficult in that: (a) objects travel more quickly, (b) objects travel over larger area, (c) objects travel for longer, (d) visual contrast decreases. The score is the number of objects participants are able to track. Thus, HIGHER SCORES reflect IMPROVEMENT These scores have been converted to T-scores (standardized scores with an average of 50 and standard deviation of 10). The formula used was: T-score = ((((participant score minus sample mean at baseline) / (sample standard deviation at baseline) ) \* 10) + 50)

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

  • Master Gardener Subtest of PositScience Insight

    Participants watch as three or five images briefly flash in different positions on screen. This task measures visual processing speed and visual working memory. As participants master the task, it is made more difficult via: (a) the images change, becoming more similar, (b) the images are shown over a larger area on screen, and (c) participants go from viewing 3 images to 5 images. Participant score is in milliseconds, so that as they improve, the images flash on screen for fewer milliseconds. Thus LOWER SCORES are indicative of IMPROVEMENT. These scores have been converted to T-scores (standardized scores with an average of 50 and standard deviation of 10). The formula used was: T-score = ((((participant score minus sample mean at baseline) / (sample standard deviation at baseline) ) \* 10) + 50)

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

  • Road Tour Subtest of PositScience Insight

    Participants choose which car they saw at the center of the screen, and also locate where a "Route 66" sign appeared in the periphery. This is a measure of useful field of view and visual processing speed. As participants master the task, it is made more difficult via: (a) distractors are added, (b) distance from the center increases, (c) cars get more similar, and (d) backgrounds get more complex. Score is in milliseconds. As participants improve, the cars and road signs flash for fewer milliseconds, giving them a lower (better) score. Thus LOWER SCORES are indicative of IMPROVEMENT. These scores have been converted to T-scores (standardized scores with an average of 50 and standard deviation of 10). The formula used was: T-score = ((((participant score minus sample mean at baseline) / (sample standard deviation at baseline) ) \* 10) + 50)

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

  • Sweep Seeker Subtest of PositScience Insight

    Participants watch two patterns that "sweep" in or out and identify their direction. The test measures visual processing speed. As participants master the task it is made more difficult via: (a) the colors of the sweeps change, (b) the direction of the sweeps change, and (c) the thickness of the bars change. Participants' scores are in milliseconds. As participants improve, the visual sweeps speed up, giving participants a lower (better) score. Thus LOWER SCORES are indicative of IMPROVEMENT. These scores have been converted to T-scores (standardized scores with an average of 50 and standard deviation of 10). The formula used was: T-score = ((((participant score minus sample mean at baseline) / (sample standard deviation at baseline) ) \* 10) + 50)

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

Secondary Outcomes (1)

  • Timed Instrumental Activities of Daily Living Task

    Baseline (Week 0), immediate posttest (Week 16), delayed posttest (Week 28)

Study Arms (3)

Cognitive Training plus Exercise

EXPERIMENTAL

Physical exercise will be achieved using traditional methods of aerobic exercise. Participants may choose between walking on a treadmill or riding on a stationary bike (Choices include recumbent or traditional sit-up bike.) Every 4th week, participants will add 80mins./day of Insight gaming for cognitive training.

Behavioral: ExerciseBehavioral: Cognitive Training

Cognitive Training plus Exergames

ACTIVE COMPARATOR

Physical exercise in this group will be achieved using the Nintendo Wii Sports Resort and Wii Sports video games. A standardized gaming plan will be used for all participants, with play starting at 15 mins. and increasing 5 mins each week after, up to a maximum of 40 play minutes. Every 4th week, participants will add 80mins./day of Insight gaming for cognitive training.

Behavioral: ExergamesBehavioral: Cognitive Training

Cognitive Training

ACTIVE COMPARATOR

Participants will complete 80 mins/day during the 4th, 8th, 12th and 16th weeks of the intervention.

Behavioral: Cognitive Training

Interventions

ExerciseBEHAVIORAL

Participants will do physical activity that raises heart rate to a target heart rate (THR)zone which is pre-calculated using the Karvonen Formula: (THR={(max. heart rate- rest heart rate) x %intensity} + resting heart rate Participants begin exercise regimen starting at 50% THR for intensity and gradually increase by 5% up to a maximum of 75% THR. Activity duration begins at 10 mins./day and increases 5 mins. every week following to a maximum of 40 mins. Polar Heart Rate monitors are used to measure THR and save resulting data.

Cognitive Training plus Exercise
ExergamesBEHAVIORAL

Participants experience Wii Video Games in a standardized format, beginning with 15 mins of seated play per day on week one, and then increasing 5 mins./week on each week following up to a maximum of 40mins. of play. Participants are made aware of the Target Heart Rate Zone for the week, but are not required to reach that zone during play. The THR is calculated by the Karvonen Formula: THR={(max. heart rate- rest heart rate) x %intensity} + resting heart rate Polar Heart Rate monitors are used to measure THR and save resulting data.

Cognitive Training plus Exergames

Posit Science INSIGHT program games are used for all cognitive training. Participants are exposed to (2) forty minute game sessions per day, for the cognitive training weeks #4,8,12,16. INSIGHT Assessments are done at baseline, the start of each training week and at week 28.

Cognitive TrainingCognitive Training plus ExerciseCognitive Training plus Exergames

Eligibility Criteria

Age60 Years - 95 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 60+
  • Generally Healthy
  • On stable does of medications
  • Absence of significant behavioral or cognitive dysfunction

You may not qualify if:

  • Significant cognitive or behavioral problems or symptoms
  • History of falls \>2 in the past month
  • Unstable medical conditions such as uncontrolled diabetes, uncontrolled cardiac disease, uncontrolled hypertension, or other that would increase risk of side effects performing physical activity
  • History of substance abuse in last 6 months
  • Known structural brain abnormality, previous major debilitating strokes or seizures, traumatic brain injury
  • Had complete neuropsychological testing in the last 6 months
  • Previous participation in cognitive or exercise training study within last 3 months
  • Currently engaging in moderate to heavy exercise \>125 mins. week at 75% Target Heart Rate

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Village Retirement Community

Gainesville, Florida, 32653, United States

Location

MeSH Terms

Interventions

ExerciseExergamingCognitive Training

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaNeurological RehabilitationRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsHealth ServicesHealth Care Facilities Workforce and Services

Results Point of Contact

Title
Dr. Dawn Bowers
Organization
University of Florida

Study Officials

  • Dawn Bowers, Ph.D.

    University of Florida- PHHP, CHP

    PRINCIPAL INVESTIGATOR
  • Michael M Marsiske, Ph.D.

    University of Florida, PHHP, CHP

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 18, 2012

First Posted

October 18, 2012

Study Start

January 1, 2010

Primary Completion

May 1, 2015

Study Completion

May 1, 2015

Last Updated

June 22, 2015

Results First Posted

June 22, 2015

Record last verified: 2015-06

Locations