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Associations between physical exercise type, fluid intelligence, executive function, and processing speed in the

Brian Duy Ho1, Joseph M Gullett2, Stephen Anton3

  • 1Center for Cognitive Aging and Memory Clinical Translational Research, Evelyn F. and William L. McKnight Brain Institute, University of Florida, Gainesville, FL, USA. bho@ufl.edu.

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|July 31, 2023
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Summary
This summary is machine-generated.

Physical exercise, particularly a combination of cardio and strength training, significantly enhances cognitive function in adults aged 85 and older. This combined approach shows benefits for processing speed and executive functions in the oldest-old population.

Keywords:
CognitionCross-sectional studyHealthy agingPhysical exercise

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Area of Science:

  • Gerontology
  • Neuroscience
  • Exercise Science

Background:

  • Limited research exists on the cognitive benefits of physical exercise in the oldest-old (≥85 years).
  • Understanding exercise's impact on cognition in this demographic is crucial for healthy aging.

Purpose of the Study:

  • To investigate the relationship between self-reported physical exercise and cognitive performance in individuals aged 85 and older.
  • To determine if different types of exercise (sedentary, cardio, cardio + strength) yield varying cognitive outcomes.

Main Methods:

  • 184 cognitively healthy participants (85-99 years) completed the Community Healthy Activities Model Program for Seniors (CHAMPS) questionnaire.
  • Cognitive function was assessed using a battery including NIH-TB, Coding, Symbol Search, Letter Fluency, and Stroop task.
  • Participants were categorized into sedentary, cardio, or cardio + strength training groups based on CHAMPS responses.

Main Results:

  • The cardio + strength training group demonstrated the highest overall cognitive performance.
  • This group significantly outperformed the sedentary group in Coding and Symbol Search tasks.
  • Compared to the cardio-only group, the cardio + strength group showed significant improvements in Symbol Search, Letter Fluency, and Stroop Color-Word performance.

Conclusions:

  • Self-reported physical exercise is associated with better cognitive function in the oldest-old.
  • Combining aerobic and strength training may have a synergistic effect on cognitive measures, particularly processing speed and executive functioning.
  • These findings highlight the importance of tailored exercise regimens for maintaining cognitive health in advanced age.