2022
Response to a Water Bolus in Long Term Oral Contraceptive Users
Atkins W, McDermott B, Colburn A, Kavouras S. Response to a Water Bolus in Long Term Oral Contraceptive Users. Frontiers In Sports And Active Living 2022, 4: 857719. PMID: 35548460, PMCID: PMC9082411, DOI: 10.3389/fspor.2022.857719.Peer-Reviewed Original ResearchUrine specific gravityOCP usersUrine osmolalityLong-term oral contraceptive usersOral contraception usersMean arterial pressureTotal urine volumeOral contraceptive usersPlasma volume changesNude body massCopeptin concentrationsArterial pressureUrine outputUrine volumeOCP useBlood glucoseContraceptive usersContraception usersUrine frequencyHeart rateHormone concentrationsFemale volunteersWater bolusBolusTrials
2021
Estrogen to Progesterone Ratio and Fluid Regulatory Responses to Varying Degrees and Methods of Dehydration
Giersch G, Charkoudian N, Morrissey M, Butler C, Colburn A, Caldwell A, Kavouras S, Casa D. Estrogen to Progesterone Ratio and Fluid Regulatory Responses to Varying Degrees and Methods of Dehydration. Frontiers In Sports And Active Living 2021, 3: 722305. PMID: 34723178, PMCID: PMC8551666, DOI: 10.3389/fspor.2021.722305.Peer-Reviewed Original ResearchCopeptin concentrationsFluid restrictionFollicular phaseHigher copeptin concentrationsLate follicular phaseSerum copeptin concentrationExercise-heat stressFluid volume regulationSerum estrogenExercise trialsProgesterone ratioMidluteal phaseRegulatory biomarkersMenstrual cycleEstrogen concentrationsEstrogenPlasma osmolalityStatistical significanceDegree of dehydrationProgesteronePossible relationshipBody massVolume regulationVarying DegreesLow levels