This study compared effects of carbohydrate (CHO) and rest on oxidative stress during exercise. Cyclists (N = 12) completed 4 randomized trials at 64% Wattsmax under 2 conditions (continuous cycling for 2 h [C] and cycling with 3-min rest every 10 min for 2.6 h [R]). Subjects cycled under each condition while receiving 6% CHO and placebo (PLA). CHO and PLA were given preexercise (12 mL/kg) and during exercise (4 mL x kg(-1) x 15 min(-1)). Blood was collected preexercise, postexercise, and 1 h postexercise and assayed for F2-isoprostanes, hydroperoxides (LH), nitrite, antioxidant capacity, glucose, insulin, cortisol, and epinephrine. F2-isoprostanes and LH were lower in CHO. Glucose, cortisol, and epinephrine exhibited significant effects, with postexercise levels of glucose higher and cortisol and epinephrine lower in CHO during the R condition. This pattern was identical in the C condition (21). Oxidative stress during cycling was unaffected by use of short rest intervals but was diminished by CHO.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1123/ijsnem.17.5.478 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of time-of-day on the noradrenaline, adrenaline, cortisol and blood lipidome response to an ice bath.
Sci Rep
January 2025
Professorship of Exercise Biology, Department Health and Sport Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany.
While the effect of time-of-day (morning versus evening) on hormones, lipids and lipolysis has been studied in relation to meals and exercise, there are no studies that have investigated the effects of time-of-day on ice bath induced hormone and lipidome responses. In this crossover-designed study, a group of six women and six men, 26 ± 5 years old, 176 ± 7 cm tall, weighing 75 ± 10 kg, and a BMI of 23 ± 2 kg/mhad an ice bath (8-12 °C for 5 min) both in the morning and evening on separate days. Absence from intense physical exercise, nutrient intake and meal order was standardized in the 24 h prior the ice baths to account for confounders such as diet or exercise.
View Article and Find Full Text PDFEffects of transurethral 0bipolar plasma prostatectomy on urodynamics and sexual function in patients with prostatic hyperplasia.
Afr J Reprod Health
December 2024
Department of Medical Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China.
This was an original article, and the objective of this study was to investigate the effects of bipolar transurethral plasma kinetic prostatectomy (TUPKP) on urodynamics and sexual function in benign prostatic hyperplasia (BPH) patients. One hundred and four BPH patients were divided into a control group and an intervention group. The control group received transurethral resection of prostate, while the intervention group received TUKEP.
View Article and Find Full Text PDFDepressive symptoms in older adults are associated with changes in stress-related markers, functional connectivity and brain volume.
Alzheimers Res Ther
January 2025
Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Institut Blood and Brain @ Caen-Normandie, GIP Cyceron, Bd Henri Becquerel, BP 5229, Caen, 14074, France.
Background: Subclinical depressive symptoms increase the risk of developing Alzheimer's disease (AD). The neurobiological mechanisms underlying this link may involve stress system dysfunction, notably related to the hippocampus which is particularly sensitive to AD. We aimed to investigate the links between blood stress markers and changes in brain regions involved in the stress response in older adults with or without subclinical depressive symptoms.
View Article and Find Full Text PDFThe epigenetic mechanisms of adaption to the hot and humid climate in Hu sheep (Ovis aries).
Physiol Rep
December 2024
Chongqing Academy of Animal Sciences, Chongqing, China.
Hu sheep is characterized by its excellent fecundity and high adaptability to various ecological environments. To reveal the molecular basis involved in Hu sheep, we first examined the 10 index of neuroendocrine and metabolism in blood in Hu sheep during non-stress period (April-May) and stress period (July-August) using ELISA, including CRH, adrenocorticotropic hormone (ACTH), cortisol, aldosterone, adrenaline, T3,T4, SOD, GSH-PX, and T-AOC. Then we conducted the Whole genome DNA methylation sequencing in blood and performed the comparative analysis of global DNA methylation between the non-stress period and the stress period.
View Article and Find Full Text PDFPeripheral Blood Leukocyte Subpopulation Changes in Reaction to an Acute Psychosocial Stressor as Compared to an Active Placebo-Stressor in Healthy Young Males: Mediating Effects of Major Stress-Reactive Endocrine Parameters.
Cells
November 2024
Biological Work and Health Psychology, University of Konstanz, 78457 Konstanz, Germany.
Psychosocial stress has been proposed to induce a redistribution of immune cells, but a comparison with an active placebo-psychosocial stress control condition is lacking so far. We investigated immune cell redistribution due to psychosocial stress compared to that resulting from an active placebo-psychosocial stress but otherwise identical control condition. Moreover, we tested for mediating effects of endocrine parameters and blood volume changes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!