The Influence of Chokeberry Juice Supplementation on the Reduction of Oxidative Stress Resulting from an Incremental Rowing Ergometer Exercise

2005 ◽  
Vol 15 (1) ◽  
pp. 48-58 ◽  
Author(s):  
Lucja Pilaczynska-Szczesniak ◽  
A. Skarpanska-Steinborn ◽  
E. Deskur ◽  
P. Basta ◽  
M. Horoszkiewicz-Hassan
Keyword(s):  
Exercise Test ◽  
Recovery Period ◽  
Antioxidant Defense System ◽  
Control Group ◽  
Placebo Control ◽  
Supplementation Period ◽  
Ergometer Exercise ◽  
Before And After ◽  
Endogenous Antioxidant ◽  
Chokeberry Juice

The aim of the study was to investigate the influence of an increased intake of anthocyanins, contained in chokeberry juice, on the redox parameters in rowers performing a physical exercise during a 1-month training camp. The athletes were randomly assigned to receive 150 mL of chokeberry juice daily, containing 23 mg/100 mL of anthocyanins (supplemented group), or placebo (control group). Before and after the supplementation period, the subjects performed an incremental rowing exercise test. Blood samples were taken from the antecubital vein before each exercise test, 1 min after the test, and following a 24-h recovery period. After the supplementation period, TBARS concentrations in the samples collected 1 min after the exercise test and following a 24-h recovery period were significantly lower in the subjects receiving chokeberry juice than in the control group. In the supplemented group, glutathione peroxidase activity was lower in the samples collected 1 min after the exercise test, and superoxide dismutase activity was lower in the samples taken following a 24-h recovery, as compared to the subjects receiving placebo. These findings indicate that an increased intake of anthocyanins limits the exercise-induced oxidative damage to red blood cells, most probably by enhancing the endogenous antioxidant defense system.

scholarly journals Features of the course and treatment of chronic catarrhal gingivitis in dogs

2020 ◽  
Vol 22 (100) ◽  
pp. 71-77
Author(s):  
N. M. Khomyn ◽  
A. R. Mysak ◽  
S. V. Tsisinska ◽  
V. V. Pritsak ◽  
N. V. Nazaruk ◽  
...  
Keyword(s):  
Oral Cavity ◽  
Periodontal Disease ◽  
Mucous Membrane ◽  
Inflammatory Process ◽  
Recovery Period ◽  
Control Group ◽  
Treatment And Prevention ◽  
Before And After ◽  
Medicinal Substances ◽  
Effective Treatment Regimen

Periodontal disease is known to be the most common and serious health problem in dogs today. Despite the rather large arsenal of medicinal substances, the problem of treatment and prevention of periodontal disease remains relevant. Based on this, the purpose of the work was to study the features of chronic catarrhal gingivitis and to develop an effective treatment regimen for dentistically ill dogs. For research, two groups of animals with chronic catarrhal gingivitis were formed in 5 dogs in each (control and experimental), selected on the principle of analogues in terms of age, character and localization of the inflammatory process. Animals of the control and experimental groups were performed tartar removal, irrigation of the oral cavity with water and drying of the mucosa with a sterile gauze swab. Dogs of the control group on the mucous membrane was applied 1 ml of septogel 2 times a day, and the experimental – argumentistin 2 times a day. Before and after the procedures on the mucous membrane was applied a 3 % solution of hydrogen peroxide. It was determined the prevalence of dental disease in dogs, the influence of microflora on the condition of the oral cavity of dogs with chronic catarrhal gingivitis, the clinical condition and the main indices and samples were studied, reflecting the intensity of the inflammatory process in the gums of sick dogs and was developed a method of treatment. The results of researches have shown that the use of argumentistin in the complex treatment of dogs with chronic catarrhal gingivitis helps to reduce the recovery period by 5 days.

Elevation of Creatine in Red Blood Cells in Vegetarians and Nonvegetarians After Creatine Supplementation

2004 ◽  
Vol 29 (6) ◽  
pp. 704-713 ◽  
Author(s):  
Vanessa M. Maccormick ◽  
Lisa M. Hill ◽  
Lauren Macneil ◽  
Darren G. Burke ◽  
Truis Smith-Palmer
Keyword(s):  
Young Women ◽  
Blood Cells ◽  
Creatine Supplementation ◽  
Control Group ◽  
Creatine Transporter ◽  
Cr Content ◽  
Supplementation Period ◽  
Significant Difference ◽  
Before And After ◽  
Cr Uptake

The purpose of this study was to examine the effect of a 5-day creatine (CR) supplementation period on red blood cell (RBC) CR uptake in vegetarian and nonvegetarian young women. Blood samples were collected from lacto-ovo vegetarians (VG, n = 6, age 21.8 ± 1.9 yrs) and nonvegetarians (NV, n = 6, age 21.7 ± 1.9 yrs) before and after a 5-day CR loading period (0. 3 g CR/kg lean body mass/day), and from a control group of nonvegetarians (NV, n = 5, age 22.0 ± 0.7 yrs) who did not supplement with creatine. RBC and plasma samples were analyzed for the presence of creatine. Significant increases (p < .05) in RBC and plasma CR levels were found for vegetarians and nonvegetarians following supplementation. The initial RBC CR content was significantly lower (p < .05) in the vegetarian group. There was no significant difference between vegetarians and nonvegetarians in final RBC CR content, suggesting that a ceiling had been reached. As the uptake into both muscle and RBC is moderated by creatine transporter proteins, analysis of the uptake of CR into RBC may reflect the uptake of CR into muscle, offering an alternative to biopsies. Key words: plasma, erythrocyte, loading

Effects of residential exercise training on heart rate recovery in coronary artery patients

2007 ◽  
Vol 292 (1) ◽  
pp. H510-H515 ◽  
Author(s):  
Jacopo M. Legramante ◽  
Ferdinando Iellamo ◽  
Michele Massaro ◽  
Sergio Sacco ◽  
Alberto Galante
Keyword(s):  
Heart Rate ◽  
Coronary Artery ◽  
Exercise Training ◽  
Training Program ◽  
Exercise Test ◽  
Heart Rate Recovery ◽  
Rehabilitation Program ◽  
Cycle Ergometer ◽  
Ergometer Exercise ◽  
Before And After

The aims of the present study are twofold: 1) to investigate whether heart rate recovery (HRR) after a cycle ergometry test is affected by exercise training and 2) to test the ability of HRR to replicate the baroreflex sensitivity (BRS) changes that occur in response to an exercise training program in coronary artery patients. We randomized 82 coronary artery patients undergoing a residential cardiac rehabilitation program to an exercise training group (TR; n = 43) and an untrained group (UTR; n = 39). All of the patients underwent an exercise test before and after the rehabilitation program. HRR was recorded at the end of the 1st and 2nd min after exercise. BRS was determined at rest before and after treatment. HRR after the 2nd min was significantly improved in TR patients (−21.4 ± 0.9 beats/min) compared with UTR patients (−17.8 ± 1.2 beats/min) at the end of the training program. Improvement in HRR paralleled that in BRS in TR patients (from 3.2 ± 0.3 to 5.3 ± 0.8 ms/mmHg; P < 0.001), whereas no significant change was evident in UTR patients (from 3.5 ± 0 to 4.0 ± 0.4 ms/mmHg; P = 0.230). Our data show that HRR in the 2nd min after the cessation of a cycle ergometer exercise test increased in coronary artery patients after an exercise training period. This result confirms the positive effect induced by exercise training on HRR and extends the conclusions of previous studies to different modalities of exercise (i.e., cycle ergometer). HRR might provide an additional simple marker of the effectiveness of physical training programs in cardiac patients.

scholarly journals Time course of changes in left ventricular twist in the presence of idiopathic left bundle branch block during exercise testing

2017 ◽  
Vol 89 (9) ◽  
pp. 15-19
Author(s):  
E N Pavlyukova ◽  
D A Kuzhel ◽  
G V Matyushin
Keyword(s):  
Exercise Testing ◽  
Left Bundle Branch Block ◽  
Exercise Test ◽  
Left Ventricular ◽  
Control Group ◽  
Bundle Branch Block ◽  
Apical Rotation ◽  
Deformation Properties ◽  
Ergometer Exercise ◽  
Apparently Healthy

Aim. To investigate left ventricular (LV) deformation properties, rotation, and twist during a bicycle ergometer exercise test among patients with idiopathic left bundle branch block (LBBB). Subjects and methods. Thirty-four patients with idiopathic LBBB having a mean QRS duration of 153±24 msec were examined. A control group included 18 apparently healthy volunteers. All the patients and apparently healthy individuals underwent echocardiography to determine LV hemodynamic parameters, deformity, rotation and twist at rest and after exercise test. Results. As compared with the control, the idiopathic LBBB group at rest showed decreases in LV global longitudinal deformity (-15.6±4.7 and –18.4±3.1%, respectively; p=0.037), apical rotation (4.59±4.2° and 8.99±3.68°; p=0.0067) and twist (9.08±4.59° and 13.96±4.61°; p=0.0156), whereas there were no differences in LV ejection fraction and end-systolic and end-diastolic volumes. After exercise testing there were no augmentations in basal and apical rotation and resulting δTwist in the idiopathic LBBB group compared with the control (–2.05±8.35 and 4.66±8.49%; p=0.0463). The described changes in LV rotation and twist during exercise testing occurred in the presence of elevated pulmonary artery systolic pressure (PASP) in the LBBB group compared with the control (41.6±3.81 and 32.4±3.81 mm Hg, respectively; p=0.0201). Conclusion. Decreases in LV basal, apical and resulting twist may lead to elevated PASP in patients with idiopathic LBBB during exercise.

scholarly journals Influence of Peroral Supplementation of Selenium and Vitamin E on the Antioxidant Status of Racing Pigeons

2016 ◽  
Vol 60 (3) ◽  
pp. 24-28 ◽  
Author(s):  
V. Vargová ◽  
F. Zigo ◽  
M. Chripková ◽  
D. Toropilová ◽  
M. Tomko
Keyword(s):  
Alkaline Phosphatase ◽  
Vitamin E ◽  
Critical Period ◽  
Antioxidant Status ◽  
Dry Matter ◽  
Control Group ◽  
Blood Samples ◽  
Commercial Feed ◽  
Supplementation Period ◽  
Before And After

Abstract The racing season is considered a critical period for racing pigeons due to the susceptibility to stress and weakening of the birds. One of the ways how to support their health and avoid problems involves supplementation of mineral-vitamin preparations based on selenium and vitamin E, which act as important antioxidants and protect cells against damage. This study investigated the influence of peroral supplementation of selenium at a dose of 0.3 mg Se.kg−1 feed dry matter (DM) in the form of Na2SeO3 and vitamin E 300 mg.ml−1 added to water at a rate of 4 ml.l−1 during 60 days. The supplemented group comprised 14 pigeons and their results were compared with a control group of 14 pigeons fed non-supplemented commercial feed. Blood samples were collected and examined at the beginning of the supplementation period, one day before a 300 km race and after the race. Pigeons from the supplemented group exhibited increased plasma levels of Se and vitamin E, as well as the activity of glutathione peroxidase (GSH-Px) before and after the 300 km race in comparison with the controls. Comparison of the activity of the enzymes: alanine aminotransferase (ALT), aspartate aminotransferase (ASP), alkaline phosphatase (ALP), and creatinine kinase (CK) at the beginning of the supplementation and one day before the race showed no changes. A significant (P < 0.05) increase in the activity of all investigated enzymes were observed after the race in both groups.

scholarly journals Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players

2017 ◽  
Vol 23 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Fabio Milioni ◽  
Paulo E Redkva ◽  
Fabio A Barbieri ◽  
Alessandro M Zagatto
Keyword(s):  
Recovery Period ◽  
Basketball Players ◽  
Group Interactions ◽  
Repeated Sprint Ability ◽  
Repeated Sprint ◽  
Supplementation Period ◽  
Before And After ◽  
Mean Time ◽  
Test Level ◽  
Sprint Ability

Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ – 6.4 g day−1 of β-alanine) and a placebo group (GP – 6.4 g day−1 of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players.

scholarly journals The Effects of Creatine on Blood Pressure Before, and After High Intensity Training

2017 ◽  
Author(s):  
Jacob Schmitz ◽  
Tyler Jakes
Keyword(s):  
Blood Pressure ◽  
Strength Training ◽  
High Intensity ◽  
Training Session ◽  
Control Group ◽  
Placebo Control ◽  
Division Iii ◽  
High Intensity Training ◽  
Before And After ◽  
The Difference

It is known that systolic blood pressure (SBP) drops five to seven mmHg for 22 hours immediately after a workout in individuals the have moderate hypertension, and that in individuals with optimal blood pressure (BP), one can expect to see a drop of four to five mmHg for over the following 22 hours. Creatine (CRE), one of the most recognized supplemental aids to enhance performance of high-intensity exercise, has convincingly substantiated its ergogenic potential (Naderi et al. 2016). However, little has been researched on the connection between creatine and blood pressure. The purpose of this study was to examine the effects of CRE on BP after a bout of high intensity strength training on Division III football players at Gustavus Adolphus College. This study is a one sample research design. Each athlete had their blood pressure measured four total times. One resting BP was taken before the consumption of CRE and the other was taken 18-22 hours after the consumption of creatine. The same was done when each subject participated in the control group as well. The subjects were given the creatine or placebo (control) at random for their first trial and then given the opposite for the second trial one week later. The independent variable was consumption of CRE. The dependent variables were SBP and diastolic blood pressure (DBP). The difference in SBP and DBP between the trials were calculated and analyzed using a paired sample t-test. Results showed that CRE trial BPs were slightly higher than in control trials although the difference was not significant (p&lt;0.05). The results of the study gave a better understanding of the effects of CRE on BP after a high intensity strength training session.

scholarly journals Hydrolyzed Collagen Supplementation on Lower Body Stiffness in Recreational Triathletes

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Mario Nunez-Lisboa ◽  
Arthur H. Dewolf ◽  
Marjorie Cataldo ◽  
Mauricio Castro-Sepulveda ◽  
Hermann Zbinden-Foncea ◽  
...  
Keyword(s):  
Collagen Synthesis ◽  
Control Group ◽  
Vertical Stiffness ◽  
Hydrolyzed Collagen ◽  
Collagen Group ◽  
Supplementation Period ◽  
Before And After ◽  
Spatiotemporal Parameters ◽  
Reaction Forces ◽  
Strength And Stiffness

Background: Myotendinous stiffness is related to the collagen content of the muscle and tendon, and can be estimated during running by changes in vertical stiffness (kvert) and the resulting modifications of the spatiotemporal parameters (on-off ground asymmetry and landing-takeoff asymmetry). Supplementation with amino acids found in collagen, such as proline, glycine, and hydroxyl proline, combined with ascorbic acid, improve collagen synthesis and potentially result in improved mechanical strength and stiffness. Objectives: To determine if hydrolyzed collagen (HC) supplementation increases kvert and improves the spatiotemporal parameters during running in recreational triathletes. Methods: Nine active males (weight; 68.4 ± 5.7 kg, height; 171.8 ± 5.4 cm, age; 32.5 ± 4.1 years; Vo2max; 53.15 ± 2.19 mL/kg/min) were randomly distributed into a collagen group (CollG, n = 5) and a control group (CG, n = 4). Participants were supplemented for 4 weeks with 15g HC (CollG) or 15g placebo (CG; maltodextrin), 3 times per week. One hour after supplementation, the participants of both groups were asked to perform four repetitions of short sprints to further stimulate collagen synthesis. The ground reaction forces were recorded during running at 4.44 m s-1, 5.55 m.s-1, and 6.66 m.s-1 for assessment of kvert and the spatiotemporal step parameters. Results: Both groups increased kvert with speed (4.44 - 6.66 m s-1) from 24.8 ± 2.7 to 53.7 ± 16.5 N/m and from 25.1 to 49.8 N/m in the CollG and CG, respectively (P < 0.0001); however, there were no differences between groups before and after the supplementation period. As a consequence, the spatiotemporal parameters of running were also similar between groups. Conclusions: Four weeks of HC supplementation does not improve the bouncing mechanism of running in recreational triathletes.

Endothelial function in subjects with isolated low HDL cholesterol: role of nitric oxide and circulating progenitor cells

2010 ◽  
Vol 298 (2) ◽  
pp. E202-E209 ◽  
Author(s):  
Yukihito Higashi ◽  
Hidehiro Matsuoka ◽  
Hidekazu Umei ◽  
Ryo Sugano ◽  
Yuichi Fujii ◽  
...  
Keyword(s):  
Risk Factor ◽  
Endothelial Function ◽  
Progenitor Cells ◽  
Density Lipoprotein ◽  
Hdl Cholesterol ◽  
Epidemiologic Studies ◽  
Control Group ◽  
Placebo Control ◽  
Before And After ◽  
Low Hdl

Epidemiologic studies have shown that a low level of high-density lipoprotein (HDL) cholesterol is a risk factor for cardiovascular diseases. The purpose of this study was to determine the contribution of isolated low HDL cholesterol to endothelial function. Thirty-nine subjects with low HDL cholesterol who had no other cardiovascular risk factors were selected from the 5,417 participants from our population. We evaluated flow-mediated vasodilation (FMD) before and after 4 wk of treatment with the HMG-CoA reductase inhibitor pravastatin in 29 of the 39 subjects with isolated low HDL cholesterol. FMD was lower in the low-HDL-cholesterol group ( n = 29) than in the control group ( n = 29), whereas NTG-induced vasodilation was similar in the two groups. Pravastatin increased HDL cholesterol, urinary excretion of nitrite/nitrate, circulating levels of progenitor cells, and cell migration response to vascular endothelial growth factor in 15 subjects with low HDL cholesterol but not in 14 placebo control subjects. FMD increased in the pravastatin treatment group but not in the control group. NTG-induced vasodilation was similar before and after 4 wk of treatment in the two groups. Multiple regression analysis revealed that changes in HDL cholesterol, the number of progenitor cells, and migration of progenitor cells were independent predictors of augmentation of FMD with pravastatin. These findings suggest that low HDL cholesterol is an independent risk factor for endothelial dysfunction and that pravastatin improves endothelial function in individuals with isolated low HDL cholesterol through, at least in part, an increase in circulating progenitor cells.

scholarly journals Immediate Effects of Neurodynamic Sliding versus Muscle Stretching on Hamstring Flexibility in Subjects with Short Hamstring Syndrome

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yolanda Castellote-Caballero ◽  
Maríe C. Valenza ◽  
Emilio J. Puentedura ◽  
César Fernández-de-las-Peñas ◽  
Francisco Alburquerque-Sendín
Keyword(s):  
Mixed Model ◽  
Controlled Trial ◽  
Control Group ◽  
Placebo Control ◽  
Hamstring Injuries ◽  
Before And After ◽  
Hamstring Flexibility ◽  
Double Blinded ◽  
Asymptomatic Subjects ◽  
Sliding Technique

Background. Hamstring injuries continue to affect active individuals and although inadequate muscle extensibility remains a commonly accepted factor, little is known about the most effective method to improve flexibility.Purpose. To determine if an isolated neurodynamic sciatic sliding technique would improve hamstring flexibility to a greater degree than stretching or a placebo intervention in asymptomatic subjects with short hamstring syndrome (SHS).Study Design. Randomized double-blinded controlled trial.Methods. One hundred and twenty subjects with SHS were randomized to 1 of 3 groups: neurodynamic sliding, hamstring stretching, and placebo control. Each subject’s dominant leg was measured for straight leg raise (SLR) range of motion (ROM) before and after interventions. Data were analyzed with a3×2mixed model ANOVA followed by simple main effects analyses.Results. At the end of the study, more ROM was observed in the Neurodynamic and Stretching groups compared to the Control group and more ROM in the Neurodynamic group compared to Stretching group.Conclusion. Findings suggest that a neurodynamic sliding technique will increase hamstring flexibility to a greater degree than static hamstring stretching in healthy subjects with SHS.Clinical Relevance. The use of neurodynamic sliding techniques to improve hamstring flexibility in sports may lead to a decreased incidence in injuries; however, this needs to be formally tested.

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