1999
Physiological variability of fluid-regulation hormones in young women
Stachenfeld N, DiPietro L, Kokoszka C, Silva C, Keefe D, Nadel E. Physiological variability of fluid-regulation hormones in young women. Journal Of Applied Physiology 1999, 86: 1092-1096. PMID: 10066728, DOI: 10.1152/jappl.1999.86.3.1092.Peer-Reviewed Original ResearchConceptsPlasma renin activityEarly follicular phaseFollicular phaseMenstrual phaseMenstrual phase-related differencesAtrial natriuretic peptideDifferent menstrual phasesMean hormone concentrationsRenin activityNatriuretic peptideMidluteal phaseMenstrual cycleHormonal variablesPlasma concentrationsLuteal phaseHormone concentrationsPhase-related differencesYoung womenHormoneCronbach's alphaRehydration periodRestingAlphaMean concentrationPhysiological variability
1994
Effect of athletic training on heart rate variability
Sacknoff D, Gleim G, Stachenfeld N, Coplan N. Effect of athletic training on heart rate variability. American Heart Journal 1994, 127: 1275-1278. PMID: 8172056, DOI: 10.1016/0002-8703(94)90046-9.Peer-Reviewed Original ResearchConceptsHeart rate variabilityRate variabilityParasympathetic toneControl subjectsHeart diseaseVagal activityBaseline parasympathetic toneCardiac vagal toneFrequency domain variablesChronic exerciseHabitual exercisePrognostic stratificationVagal toneControl groupEndurance athletesActivity levelsPatientsAthletic trainingAthletesDiseaseToneExerciseAccurate indicatorSubjectsPrognosis
1991
Evaluation of 85% predicted maximal heart rate as an end point for diagnostic exercise testing
Coplan N, Gleim G, Stachenfeld N, Eskenazi M, Morales M, Nicholas J. Evaluation of 85% predicted maximal heart rate as an end point for diagnostic exercise testing. American Heart Journal 1991, 122: 1790-1791. PMID: 1957782, DOI: 10.1016/0002-8703(91)90307-4.Peer-Reviewed Original ResearchGender differences in the systolic blood pressure response to exercise
Gleim G, Stachenfeld N, Coplan N, Nicholas J. Gender differences in the systolic blood pressure response to exercise. American Heart Journal 1991, 121: 524-530. PMID: 1990758, DOI: 10.1016/0002-8703(91)90721-s.Peer-Reviewed Original ResearchConceptsSystolic blood pressure responseBlood pressure responseSystolic blood pressureBody surface areaLean body massBlood pressurePressure responseBody weightHigher systolic blood pressureSympathetic nervous system responsesNormal cardiac responseUrinary norepinephrine excretionPeak heart rateNervous system responsesGender differencesNorepinephrine excretionBody massExercise modalitiesDynamic exerciseHeart rateCardiac responseInfluence of genderMenModalitiesResponse