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Acute Effects of Postexercise Cigarette Smoking on Central Hemodynamics and Endothelial Function in Young Men
Journal article   Open access   Peer reviewed

Acute Effects of Postexercise Cigarette Smoking on Central Hemodynamics and Endothelial Function in Young Men

Min Jeong Cho, Hyun Jeong Kim, Young Woo Kim, Kanokwan Bunsawat and Sae Young Jae
The Korean Journal of Sports Medicine, Vol.39(4), pp.160-169
12/01/2021
DOI: 10.5763/kjsm.2021.39.4.160
url
https://doi.org/10.5763/kjsm.2021.39.4.160View
Published (Version of record) Open Access

Abstract

Purpose: Recovery from exercise is a vulnerable phase that has been linked to increased susceptibility to sudden cardiovascular events. Cigarette smoking increases the risk of cardiovascular mortality and morbidity. We tested the hypothesis that postexercise cigarette smoking would attenuate hemodynamics and vascular function during recovery from exercise in young men. Methods: Thirteen habitual smokers (age, 22±3 years; body mass index, 25.1±3.6 kg/m2) participated in (1) cigarette smoking (0.6 mg nicotine) and (2) sham smoking (SHAM) immediately postexercise (30 minutes on a treadmill; 40% to 60% of heart rate [HR] reserve) in a randomized order. Assessments were hemodynamics (HR, rate-pressure product [RPP], brachial and central artery blood pressures) and vascular function (arterial stiffness via carotid-femoral pulse wave velocity [PWV]; conduit vessel function via brachial artery flow-mediated dilation [FMD]). All variables were assessed at baseline, 10 minutes, and 30 minutes postexercise, except for FMD (baseline and 30 minutes postexercise). Results: Compared with the SHAM trial, cigarette smoking increased HR, RPP, and brachial and central blood pressures postexercise (interaction, p< 0.05). PWV reduced and FMD increased postexercise in the SHAM trial, while cigarette smoking attenuated exercise-induced improvements (interaction, p< 0.05). Conclusion: Cigarette smoking attenuated hemodynamic recovery and an improvement in arterial stiffness and conduit vessel function in young habitual smokers, thereby providing evidence for the negative effects of cigarette smoking during recovery from exercise.

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