期刊
NUTRIENTS
卷 14, 期 21, 页码 -出版社
MDPI
DOI: 10.3390/nu14214532
关键词
dairy products; inflammation; acute exercise; exercise-induced muscle damage
资金
- Junior Faculty Fund/Minor Research Grant (JFF/MRG) from York University
- Brock University Advancement Fund (BUAF)
- Canadian Institutes of Health Research (CIHR) [164711, 181430]
High-intensity/impact exercise leads to an increase in inflammatory biomarkers, but consuming nutrient-dense wholefoods (such as milk) may help reduce post-exercise inflammation and aid recovery.
High-intensity/impact exercise elicits a transient increase in inflammatory biomarkers. Consuming nutrient-dense wholefoods, like milk, following exercise may modulate post-exercise inflammation and aid recovery. We examined the effect of post-exercise skim milk consumption (versus an isoenergetic, isovolumetric carbohydrate [CHO] drink) on acute exercise-induced inflammation in untrained females. Using a randomized crossover design, 13 healthy females (age = 20 +/- 2.3 y; BMI = 21.0 +/- 1.1 kg/m(2)) completed two bouts of combined resistance/plyometric exercise followed by either skim milk (MILK) or CHO at 5-min and 1 h post-exercise. Serum interleukin [IL]-1 beta, IL-6, IL-10, and tumor necrosis factor-alpha (TNF-alpha) concentrations were measured at pre-exercise, 15-min, 75-min, 24 h, and 48 h post-exercise. IL-6 increased 15-min post-exercise vs. all other timepoints (time effect, p = 0.017). Between 24 and 48 h, IL-10 decreased and increased in the MILK and CHO conditions, respectively (interaction, p = 0.018). There were no significant effects for IL-1 beta or TNF-alpha. Relative concentrations of IL-1 beta (p = 0.049) and IL-10 (p = 0.028) at 48 h post-exercise were lower in MILK vs. CHO. Milk post-exercise did not influence the absolute concentration of pro-inflammatory cytokines; however, there were divergent responses for the anti-inflammatory cytokine, IL-10, and milk reduced the relative inflammatory response at 48 h (vs. CHO) for IL-1 beta and IL-10. This demonstrates the potential for milk to modulate inflammation post-exercise in this sample.
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