The impact of aerobic and resistance training intensity on markers of neuroplasticity in health and disease

Tibor Hortobágyi*, Tomas Vetrovsky, Guilherme Moraes Balbim, Nárlon Cássio Boa Sorte Silva, Andrea Manca, Franca Deriu, Mia Kolmos, Christina Kruuse, Teresa Liu-Ambrose, Zsolt Radák, Márk Váczi, Hanna Johansson, Paulo Cezar Rocha dos Santos, Erika Franzén, Urs Granacher

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

1 Citation (Scopus)

Abstract

Objective: To determine the effects of low- vs. high-intensity aerobic and resistance training on motor and cognitive function, brain activation, brain structure, and neurochemical markers of neuroplasticity and the association thereof in healthy young and older adults and in patients with multiple sclerosis, Parkinson's disease, and stroke. Design: Systematic review and robust variance estimation meta-analysis with meta-regression. Data sources: Systematic search of MEDLINE, Web of Science, and CINAHL databases. Results: Fifty studies with 60 intervention arms and 2283 in-analyses participants were included. Due to the low number of studies, the three patient groups were combined and analyzed as a single group. Overall, low- (g=0.19, p = 0.024) and high-intensity exercise (g=0.40, p = 0.001) improved neuroplasticity. Exercise intensity scaled with neuroplasticity only in healthy young adults but not in healthy older adults or patient groups. Exercise-induced improvements in neuroplasticity were associated with changes in motor but not cognitive outcomes. Conclusion: Exercise intensity is an important variable to dose and individualize the exercise stimulus for healthy young individuals but not necessarily for healthy older adults and neurological patients. This conclusion warrants caution because studies are needed that directly compare the effects of low- vs. high-intensity exercise on neuroplasticity to determine if such changes are mechanistically and incrementally linked to improved cognition and motor function.

Original languageEnglish
Article number101698
JournalAgeing Research Reviews
Volume80
DOIs
Publication statusPublished - 2022 Sep
Externally publishedYes

Keywords

  • Aging
  • Cognition motor function
  • Exercise
  • Intensity Dose-response relationship

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Ageing
  • Molecular Biology
  • Neurology

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