TITLE

The effect of consecutive days of exercise on markers of oxidative stress

AUTHOR(S)
Shing, Cecilia M.; Peake, Jonathan M.; Ahern, Shannon M.; Strobel, Natalie A.; Wilson, Gary; Jenkins, David G.; Coombes, Jeff S.
PUB. DATE
August 2007
SOURCE
Applied Physiology, Nutrition & Metabolism;Aug2007, Vol. 32 Issue 4, p677
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We examined the influence of 3 consecutive days of high-intensity cycling on blood and urinary markers of oxidative stress. Eight highly-trained male cyclists (VO2 max 76 ± 4 mL·kg–1·min–1; mean ± SD) completed an interval session (9 exercise bouts lasting 30 s each, at 150% peak power output) on day 1, followed by 2 laboratory-simulated 30 km time trials on days 2 and 3. The cyclists also completed a submaximal exercise trial matched to the interval session for oxygen consumption. Blood was collected pre- and post-exercise for the determination of malondialdehyde (MDA), total antioxidant status (TAS), vitamin E, and the antioxidant enzyme activity of superoxide dismutase and glutathione peroxidase, while urine was collected for the determination of allantoin. There were significant increases in plasma MDA concentrations (p < 0.01), plasma TAS (p < 0.01), and urinary allantoin excretion (p < 0.01) following the high-intensity interval session on day 1, whereas plasma vitamin E concentration significantly decreased (p = 0.028). Post-exercise changes in plasma MDA (p = 0.036), TAS concentrations (p = 0.039), and urinary allantoin excretion (p = 0.031) were all significantly attenuated over the 3 consecutive days of exercise, whereas resting plasma TAS concentration was elevated. There were no significant changes in plasma MDA, TAS, or allantoin excretion following submaximal exercise and there were no significant changes in antioxidant enzyme activity over consecutive days of exercise or following submaximal exercise. Consecutive days of high-intensity exercise enhanced resting plasma TAS concentration and reduced the post-exercise increase in plasma MDA concentrations.
ACCESSION #
32486203

 

Related Articles

  • Effects of low and high cadence interval training on power output in flat and uphill cycling time-trials. Nimmerichter, Alfred; Eston, Roger; Bachl, Norbert; Williams, Craig // European Journal of Applied Physiology;Jan2012, Vol. 112 Issue 1, p69 

    This study tested the effects of low-cadence (60 rev min) uphill (Int) or high-cadence (100 rev min) level-ground (Int) interval training on power output (PO) during 20-min uphill (TT) and flat (TT) time-trials. Eighteen male cyclists ( $$ \dot{V}{\text{O}}_{2\max } $$: 58.6 ± 5.4 mL min kg)...

  • Cardiovascular responses to counterweighted single-leg cycling: implications for rehabilitation. Burns, Keith; Pollock, Brandon; LaScola, Phil; McDaniel, John // European Journal of Applied Physiology;May2014, Vol. 114 Issue 5, p961 

    Purpose: Although difficult to coordinate, single-leg cycling allows for greater muscle-specific exercise capacity and subsequently greater stimulus for metabolic and vascular adaptations compared to typical double-leg cycling. The purpose of this investigation was to compare metabolic,...

  • OPTIMIZING HEALTH STATUS IN AEROBIC GYMNASTICS. GEORGESCU, LUMINIŢA; IOANA-CRISTINA, NECŞOI // Ovidius University Annals, Series Physical Education & Sport/Sci;2011, Vol. 11 Issue 1, p78 

    Aim of study This work is intended to be a plea for what negative effects of sedentary life represent, but also of the manner they could be prevented and removed, for optimizing body health status, through training in which effort shall be dosed, depending on a series of individual traits (age,...

  • AEROBIC VERBENA.  // American Herb Association Quarterly Newsletter;Spring2012, Vol. 27 Issue 2, p12 

    The article offers information on the lemon verbena which was found to have an important role in the prevention of oxidative damage while performing aerobic exercise.

  • Correlation of oxidative stress and inflammatory markers with the severity of sickle cell nephropathy. Emokpae, M. A.; Uadia, P. O.; Gadzama, A. A. // Annals of African Medicine;2010, Vol. 9 Issue 3, p141 

    Background: Reactive oxygen species have been shown to mediate inflammatory process and may be involved in lipid peroxidation. Methods: This study evaluates superoxide dismutase, glutathione peroxidase, catalase, malondialdehyde, C- reactive protein and fibrinogen in the serum of patients with...

  • Antioxidant and redox status after maximal aerobic exercise at high altitude in acclimatized lowlanders and native highlanders. Sinha, Sanchari; Ray, U. S.; Saha, M.; Singh, S. N.; Tomar, O. S. // European Journal of Applied Physiology;Aug2009, Vol. 106 Issue 6, p807 

    Exercise-induced increase in oxygen consumption leads to oxidative stress. On the contrary, hypoxia triggers oxidative stress despite decreased oxygen flux. Therefore, exercise under hypoxia may aggravate oxidative damage. Highlanders are expected to have better antioxidant capacity than...

  • Low Intensity Physical Exercise Attenuates Cardiac Remodeling and Myocardial Oxidative Stress and Dysfunction in Diabetic Rats. Gimenes, C.; Gimenes, R.; Rosa, C. M.; Xavier, N. P.; Campos, D. H. S.; Fernandes, A. A. H.; Cezar, M. D. M.; Guirado, G. N.; Cicogna, A. C.; Takamoto, A. H. R.; Okoshi, M. P.; Okoshi, K. // Journal of Diabetes Research;10/5/2015, Vol. 2015, p1 

    We evaluated the effects of a low intensity aerobic exercise protocol on cardiac remodeling and myocardial function in diabetic rats. Wistar rats were assigned into four groups: sedentary control (C-Sed), exercised control (C-Ex), sedentary diabetes (DM-Sed), and exercised diabetes (DM-Ex)....

  • Linking exercise and wellness. Haynes Jr., William F. // Swim Magazine;Jul/Aug95, Vol. 11 Issue 4, p12 

    Discusses the physical benefits of regular aerobic exercise. Includes lower cholesterol; Weight control; Alleviation of stress; Importance of exercise to a teenager's lifestyle.

  • Aerobics gets real. Duffy, Mary; Rhodes, Maura // Women's Sports & Fitness;Dec93, Vol. 15 Issue 8, p52 

    Discusses the benefits of aerobics on women. Improvement of body composition; Difference in motivation; Modern movements from physical therapy; Lateral exercises; Use of less stressful movements to reduce injuries; Fitness as a way to handle the rigors of daily life.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics