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Aerobic Exercise to Improve Executive Language Function In Older Adults

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Department of Veterans Affairs
ClinicalTrials.gov Identifier:
NCT00979069
First received: September 15, 2009
Last updated: October 29, 2014
Last verified: October 2014
  Purpose

The purpose of this study is to see if exercise can improve brain function in older adults


Condition Intervention
Aging
Behavioral: Aerobic group

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Aerobic Exercise to Improve Executive Language Function in Older Adults

Resource links provided by NLM:


Further study details as provided by Department of Veterans Affairs:

Primary Outcome Measures:
  • Executive Language Functions [ Time Frame: pre and post separated by 12 weeks ] [ Designated as safety issue: No ]
    Verbal Fluency Test of the Delis-Kaplan Executive Function System (D-KEFS; Delis, Kaplan, & Kramer, 2001). The Verbal Fluency Test is demonstrated to be reliable and valid among adults aged 50 to 89 (Delis, et al., 2001; Delis, Kramer, Kaplan, & Hodnack, 2004). The D-KEFS Verbal Fluency Test has three conditions, Letter Verbal Fluency, Category Verbal Fluency, and Switching Verbal Fluency. Each was randomized at pre- and post-12 week timeline and equated for difficulty. For each condition (letter, category, and switching) a total score representing the total number of correct responses for each condition is reported. A higher score indicates a higher number of correct responses and a better outcome.


Enrollment: 20
Study Start Date: September 2010
Study Completion Date: January 2012
Primary Completion Date: January 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Aerobic Group
12 weeks of aerobic exercise 3 times a week
Behavioral: Aerobic group
12 weeks of aerobic exercise 3 times a week
No Intervention: Control Group
No contact control

Detailed Description:

Recently, considerable attention has been devoted to examining the beneficial relationship between cognition and aerobic exercise in older adults. Specifically, the effects are thought to involve higher order cognitive processes, such as working memory, switching between tasks, and inhibiting irrelevant information, all of which are thought to be sub- served, in part, by the frontal lobes (Colcombe et al., 2006). Importantly, these areas also are most susceptible to age-related decline (Raz, 2000) and are essential resources for language production (Kemper & Sumner, 2001; Murray & Lenz, 2001). However, despite promising cognitive improvement, changes in frontally-mediated executive language functions have been widely ignored. This is unfortunate considering impaired word retrieval compromises communicative effectiveness, leading to frustration, depression, and withdrawal. Perhaps more importantly, communication ineffectiveness, particularly in the elderly, leads to difficulties interacting with health care professionals leading to further health care burdens. Since cognition, and specifically word retrieval difficulties, usually remain untreated, it is important to find treatment strategies for minimizing these deficits. Therefore, the short-term goal and the purpose of this proposal is to examine the potential of aerobic exercise to improve executive language function in older adults.

  Eligibility

Ages Eligible for Study:   65 Years to 89 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Consent of participants' primary health care physicians to participate in the aerobic exercise.
  • Patients must not have participated in any consistent exercise program or experimental study for at least 3 months prior to enrollment.
  • They must be capable of providing informed consent and complying with the trial procedures.

Exclusion Criteria:

  • Demented as defined by the Modified Mini Mental Status Exam.
  • Unalterable travel schedules.
  • Site accessibility constraints.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00979069

Locations
United States, Florida
North Florida/South Georgia Veterans Health System, Gainesville, FL
Gainesville, Florida, United States, 32608
United States, Georgia
Atlanta VA Medical and Rehab Center, Decatur, GA
Decatur, Georgia, United States, 30033
Sponsors and Collaborators
Investigators
Principal Investigator: Joe R Nocera, PhD Atlanta VA Medical and Rehab Center, Decatur, GA
  More Information

Publications:
Responsible Party: Department of Veterans Affairs
ClinicalTrials.gov Identifier: NCT00979069     History of Changes
Other Study ID Numbers: E6860-M
Study First Received: September 15, 2009
Results First Received: September 18, 2014
Last Updated: October 29, 2014
Health Authority: United States: Federal Government

ClinicalTrials.gov processed this record on November 20, 2014