| Title: | Handgrip Strength Is Associated With Hippocampal Volume and White Matter Hyperintensities in Major Depression and Healthy Controls: A UK Biobank Study. |
| Journal: | Biopsychosocial Science and Medicine |
| Published: | 7 Nov 2019 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/31702599/ |
| DOI: | https://doi.org/10.1097/psy.0000000000000753 |
| URL: | http://hdl.handle.net/11577/3383713 |
| Citations: | 56 (24 in last 2 years) as of 8 Aug 2024 |
Publication 12908
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Abstract
OBJECTIVE: Emerging evidence suggests that handgrip strength (a proxy for muscular fitness) is associated with better cognitive performance in people with major depressive disorder (MDD). The underlying processes are unclear, although hippocampal volume (HCV) reductions and white matter hyperintensities (WMHs) have been implicated. Therefore, we investigated the associations between handgrip strength and various brain region volumes and WMHs in MDD and healthy controls (HCs).</p>
METHODS: This study is a cross-sectional analysis of handgrip strength and neuroimaging data from the UK Biobank. Generalized linear models were used to assess the relationship between grip strength and gray matter, white matter, total brain volume, left and right hippocampus volume, and WMHs in MDD and HCs, adjusting for age, sex, education, and body weight.</p>
RESULTS: The sample included 527 people with MDD (54.3 ± 7.3 years, 37.2% male) and 1764 HCs (56.6 ± 7.2 years, 53% male). In MDD, stronger handgrip was significantly associated with increased left (coefficient ± SE = 108.1 ± 27.6, t = 3.92) and right (76.8 ± 30.4, t = 2.53) HCV. In HCs, only right HCV related to handgrip strength (44.8 ± 18.1, t = 2.47). Interaction analyses found stronger associations between grip strength and HCV in MDD compared with HCs, for both hippocampal regions. Stronger handgrip was associated with reduced WMHs in people with MDD (-0.24 ± 0.07, t = -3.24) and HCs (-0.11 ± 0.04, t = -2.47). Maximal handgrip strength was not associated with gray matter, white matter, or total brain volumes in either group.</p>
CONCLUSIONS: Stronger grip strength is associated with greater left and right HCV and reduced WMHs in MDD. Future research should investigate directionality and consider if interventions targeting strength/muscular fitness can improve brain health and reduce the neurocognitive abnormalities associated with MDD.</p>
13 Keywords
- Adult
- Aged
- Biological Specimen Banks
- Cross-Sectional Studies
- Depressive Disorder, Major
- Female
- Hand Strength
- Hippocampus
- Humans
- Male
- Middle Aged
- United Kingdom
- White Matter
10 Authors
- Josh A Firth
- Lee Smith
- Jerome Sarris
- Davy Vancampfort
- Felipe Schuch
- Andre F Carvalho
- Marco Solmi
- Alison R Yung
- Brendon Stubbs
- Joseph Firth
1 Application
| Application ID | Title |
|---|---|
| 22125 | How can physical activity and fitness improve brain health in people with serious mental illness? |
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