Oral nitrate reduction is not impaired after training in chlorinated swimming pool water in elite swimmers
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Updated: Dec 11, 2025

Preparation of Rat Skeletal Muscle Homogenates for Nitrate and Nitrite Measurements
Published on: July 29, 2021
Samantha N Rowland1, Richard Chessor2, George French1
1School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough LE11 3TU, UK.
Abstract:
This study tested the hypothesis that exposure to chlorine-sterilised pool water would impair oral nitrate reduction (ONR). ONR was assessed in elite swimmers before and after morning and afternoon pool-based training. Nonswimmers were only assessed in the morning. ONR was similar in swimmers and nonswimmers (P = 1.000) and unchanged before and after morning and afternoon training (P ≥ 0.341). Therefore, exposure to chlorinated pool water does not interfere with ONR. Novelty Exposure to chlorine-sterilised pool water does not impair oral nitrate reduction in elite swimmers.
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