Journal
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
Volume 17, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/ijerph17145194
Keywords
FMD; endothelial function; vascular responsiveness; strength training
Funding
- Fundacao Carlos Chagas de Amparo a Pesquisa do Estado do Rio de Janeiro-FAPERJ [E-26/010.100981/2018, E-26/010.000.984/2019]
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The current pool of data investigating the effects of a single resistance exercise session on endothelial function is divergent and inconclusive. Therefore, the purpose of the present study was to evaluate the effect of a single resistance exercise session on flow-mediated dilation (FMD) in trained individuals. Eleven healthy, young, recreationally resistance-trained individuals participated in the study. After determining the resistance exercise workload, the participants performed three sets of 10-12 repetition of leg press and leg extension exercises. By using ultrasound equipment, brachial artery FMD was assessed before (PRE) and 30 min after (POST) the resistance exercise protocol or resting (control) to evaluate endothelial function. A significant reduction in FMD response (PRE: 5.73% +/- 1.21% vs. POST: 4.03% +/- 1.94%,p< 0.01) after resistance exercise was observed, accompanied by a large effect size (d= 1.05). No significant difference was observed in FMD in the control condition (PRE: 5.82% +/- 1.19% vs. POST: 5.66% +/- 1.24%,p= 0.704). Additionally, no significant difference in baseline brachial artery diameter between resistance exercise (PRE: 3.30 +/- 0.32 vs. POST: 3.40 +/- 0.34 mm,p= 0.494) and resting (PRE: 3.64 +/- 0.41 vs. POST: 3.67 +/- 0.62 mm,p= 0.825) was observed. Our findings showed that a single resistance exercise session induced a reduction in FMD in resistance-trained individuals.
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