Effects of prior moderate exercise on postprandial metabolism and vascular function in lean and centrally obese men
Open accessAbstract
Objectives We investigated whether a session of prior exercise could ameliorate postprandial endothelial dysfunction.Background Endothelial function is impaired after fat ingestion, and this may be related to rises in triglyceride concentrations. Exercise reduces postprandial triglyceride concentrations.Methods Ten lean (waist <90 cm) and 10 centrally obese (waist >100 cm) middle-aged men each underwent two oral fat tolerance tests (blood taken fasting and for 8 h after a high-fat meal containing 80 g fat and 70 g carbohydrate). On the afternoon before one test, subjects performed a 90-min treadmill walk (exercise); no exercise was performed before the control test. Endothelium-dependent and -independent microvascular function was assessed using laser Doppler imaging in the fasted state and at two hourly intervals during the 8-h postprandial period.Results Exercise reduced both fasting and postprandial triglyceride concentrations by 25% in both the lean and centrally obese groups (p < 0.0005). For all subjects taken together, exercise improved fasting endothelium-dependent function by 25% (p < 0.05), and, although there was a significant postprandial decrease in both endothelium-dependent and -independent function in both the control and exercise trials (p < 0.01), postprandial endothelium-dependent and -independent function were 15% and 20% higher, respectively, in the exercise trial than the control trial (both p < 0.05).Conclusions A session of prior exercise improves fasting and postprandial vascular function in middle-aged men. This may be one mechanism by which exercise influences cardiovascular risk.
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Substantial lowering of postprandial triglyceride level occurred when subjects exercised before a high-fat diet, for longer periods and more intensively.
“there was substantial lowering of postprandial TG level.”
From Effects of aerobic exercise on lipids and lipoproteins (2017) · cites this paper as [55]
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- Authors
- Gill, J. M. R., Al-Mamari, A., Ferrell, W. R., Cleland, S. J., Packard, C. J., Sattar, N., Petrie, J. R., & Caslake, M. J.
- Affiliations
- Glasgow Royal Infirmary (GB)
- Western Infirmary (GB)
- Corresponding author
- Gill, Jason M.R.
- Venue
- Journal of the American College of Cardiology
- Publisher
- Elsevier BV
- Published
- 2004-12
- Volume
- 44
- Issue
- 12
- Pages
- 2375-2382
- ISSN
- 0735-1097 (ISSN-L)
- OpenAlex
- W2072603346
- Cited by
- 142
- References
- 36
- Citations by year
- 2024: 2 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 3 · 2019: 1 · 2018: 3 · 2017: 8 · 2016: 11 · 2015: 11 · 2014: 9 · 2013: 13 · 2012: 11
- FWCI
- 14.13
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Journal of the American College of Cardiology (publishedVersion)
- PubMed (publishedVersion)
- Discovery Research Portal (University of Dundee) (publishedVersion)
- ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion)
- Funders
- University of Glasgow
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
- Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
- Keywords
- prior exercise, postprandial metabolism, endothelial dysfunction, vascular function, abdominal obesity, triglycerides, high-fat meal, treadmill walking, microvascular function, cardiovascular risk, middle-aged men
- MeSH terms
- Acetylcholine, Adult, Blood Vessels, Endothelium, Vascular, Fasting, Humans, Leukocyte Count, Male, Microcirculation, Middle Aged, Nitroprusside, Obesity, Osmolar Concentration, Thinness, Triglycerides, Vasodilator Agents, Exercise, Interleukin-6, Walking, Postprandial Period
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