Authors: David J Elmer Richard H Laird Matthew D Barberio David D Pascoe
Publish Date: 2015/12/31
Volume: 116, Issue: 3, Pages: 601-609
Abstract
The goal of this study was to compare the effect of work and durationmatched interval training HIIT versus moderate aerobic endurance training ET on acute and chronic inflammation along with changes in the lipid profile to determine which may be more beneficial for improving cardiovascular healthTwelve sedentary males maximal oxygen consumption = 416 ± 54 mL kg−1 min−1 completed 8 weeks of aerobic interval training or moderate aerobic training with variables including Creactive protein CRP for chronic inflammation interleukin6 IL6 response for the acute inflammatory response plasma concentrations of highdensity lipoprotein HDL total cholesterol TC triglycerides TRG and lowdensity lipoprotein and body composition measured before and after the training periodHIIT decreased plasma TRG from 92 ± 32 to 61 ± 12 mg dL−1 which was significantly different from ET while ET improved the TCHDL ratio from 467 ± 085 to 407 ± 096 and reduced the percentage of android fat from 3678 ± 960 to 3418 ± 1139 Neither training protocol resulted in an acute IL6 response on the first nor the last day of exercise a change in chronic levels of CRP or a significant increase in HDL despite previous research finding these changesIt seems that in order to maximize the health outcomes from physical activity both HIIT and ET should be included The acute inflammatory response and reductions in chronic inflammation resulting from exercise training may not be as common as the literature suggests
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