0000000000873745

AUTHOR

James F. Markworth

showing 2 related works from this author

Acute responses of comprehensive gonadosteroids and corticosteroids to resistance exercise before and after 10 weeks of supervised strength training

2019

New Findings: What is the central question of this study? Although acute responses of the principal gonadosteroid and corticosteroid hormones to resistance exercise are well documented, there is no information regarding how the key lower-concentration intermediary hormones respond and potentially influence these hormonal pathways. What is the main finding and its importance? This study provides evidence for cascading conversions of some gonadosteroids, and the data suggest that the testosterone concentration increases independently of these hormones. These findings challenge future studies to determine the exact physiological roles of the lower-concentration gonadosteroids and corticosteroi…

AdultMalemedicine.medical_specialtyHydrocortisonePhysiologymedicine.drug_classStrength trainingmedicine.medical_treatmentDehydroepiandrosteroneEstrone030204 cardiovascular system & hematologyYoung Adult03 medical and health scienceschemistry.chemical_compound0302 clinical medicineAdrenal Cortex HormonesPhysiology (medical)Internal medicineHumansMedicineKneeTestosteroneAndrostenedioneMuscle SkeletalExerciseHydrocortisoneNutrition and Dieteticsbusiness.industryResistance TrainingGeneral MedicineAdaptation PhysiologicalSteroid hormoneEndocrinologychemistryCorticosteroidbusiness030217 neurology & neurosurgeryHormonemedicine.drugExperimental Physiology
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High-frequency blood flow-restricted resistance exercise results in acute and prolonged cellular stress more pronounced in type I than in type II fib…

2021

Myocellular stress with high-frequency blood flow-restricted resistance exercise (BFRRE) was investigated by measures of heat shock protein (HSP) responses, glycogen content, and inflammatory markers. Thirteen participants [age: 24 ± 2 yr (means ± SD), 9 males] completed two 5-day blocks of seven BFRRE sessions, separated by 10 days. Four sets of unilateral knee extensions to failure at 20% of one-repetition maximum (1RM) were performed. Muscle samples obtained before, 1 h after the first session in the first and second block (

0301 basic medicineAdultMalemedicine.medical_specialtyPhysiologyInflammationStress (mechanics)03 medical and health sciencesYoung Adult0302 clinical medicinePhysiology (medical)Internal medicinemedicineStress ProteinsHumansType i muscle fibersMuscle SkeletalExerciseKaatsuFiber typeChemistryResistance trainingResistance Training030229 sport sciencesBlood flowMicroRNAs030104 developmental biologyEndocrinologyMuscle Fibers Slow-TwitchRegional Blood FlowFemalemedicine.symptomJournal of applied physiology (Bethesda, Md. : 1985)
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