THE PROTECTIVE EFFECTS OF VARIOUS WARM-UP MODALITIES ON EXERCISE-INDUCED BRONCHOSPASM (EIB) IN NON-ASTHMATIC ATHLETES

2017 ◽  
Vol 51 (4) ◽  
pp. 305.2-306
Author(s):  
Jae Seung Chang ◽  
Young Hee Lee ◽  
In Deok Kong
Keyword(s):  
Protective Effects ◽  
Warm Up ◽  
Exercise Induced

PROTECTIVE EFFECTS OF WARM-UP PROTOCOLS IN CHILDREN WITH EXERCISE-INDUCED ASTHMA

1998 ◽  
Vol 30 (Supplement) ◽  
pp. 154
Author(s):  
M. L. McCarthy ◽  
W. F. Riner ◽  
R. R. Pate ◽  
D. S. Ward ◽  
D. L. Cook ◽  
...  
Keyword(s):  
Protective Effects ◽  
Warm Up ◽  
Exercise Induced

scholarly journals Acute and Delayed Effects of Time-Matched Very Short “All Out” Efforts in Concentric vs. Eccentric Cycling

2021 ◽  
Vol 18 (15) ◽  
pp. 7968
Author(s):  
Daniel Boullosa ◽  
Boris Dragutinovic ◽  
Jan-Philip Deutsch ◽  
Steffen Held ◽  
Lars Donath ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Active Recovery ◽  
Thigh Circumference ◽  
Physically Active ◽  
Warm Up ◽  
Delayed Effects ◽  
Acute Responses ◽  
Experimental Protocols ◽  
Different Populations ◽  
Exercise Induced

Background: To the authors’ knowledge, there have been no studies comparing the acute responses to “all out” efforts in concentric (isoinertial) vs. eccentric (isovelocity) cycling. Methods: After two familiarization sessions, 12 physically active men underwent the experimental protocols consisting of a 2-min warm-up and 8 maximal efforts of 5 s, separated by 55 s of active recovery at 80 rpm, in concentric vs. eccentric cycling. Comparisons between protocols were conducted during, immediately after, and 24-h post-sessions. Results: Mechanical (Work: 82,824 ± 6350 vs. 60,602 ± 8904 J) and cardiometabolic responses (mean HR: 68.8 ± 6.6 vs. 51.3 ± 5.7% HRmax, lactate: 4.9 ± 2.1 vs. 1.8 ± 0.6 mmol/L) were larger in concentric cycling (p < 0.001). The perceptual responses to both protocols were similarly low. Immediately after concentric cycling, vertical jump was potentiated (p = 0.028). Muscle soreness (VAS; p = 0.016) and thigh circumference (p = 0.045) were slightly increased only 24-h after eccentric cycling. Serum concentrations of CK, BAG3, and MMP-13 did not change significantly post-exercise. Conclusions: These results suggest the appropriateness of the eccentric cycling protocol used as a time-efficient (i.e., ~60 kJ in 10 min) and safe (i.e., without exercise-induced muscle damage) alternative to be used with different populations in future longitudinal interventions.

Protective effects of polysaccharide from Euphorbia kansui (Euphorbiaceae) on the swimming exercise-induced oxidative stress in mice

2006 ◽  
Vol 84 (10) ◽  
pp. 1071-1079 ◽  
Author(s):  
Farong Yu ◽  
Shunqing Lu ◽  
Fahong Yu ◽  
Shutao Feng ◽  
Peter M. McGuire ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Antioxidant Activities ◽  
Oral Treatment ◽  
Swimming Exercise ◽  
Strenuous Exercise ◽  
Antioxidant Enzyme Activities ◽  
Protective Effects ◽  
Euphorbia Kansui ◽  
Exercise Induced

The present study examined the effects of derivatives of galactosides and glucosides in a polysaccharide extract from Euphorbia kansui (Euphorbiaceae) on exercise-induced oxidative stress in mice. Exhaustive swimming exercise significantly increases the degree of lipid peroxidation in terms of malondialdehyde content and reduces the antioxidant activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx). Our findings revealed that chronic oral treatment with the extract elevates enzymatic activities of SOD and GPx accompanied by a corresponding decrease in malondialdehyde. The antioxidative activities of these compounds against exercise-induced oxidative stress are correlated with various activities such as reducing the production of superoxide and hydroxyl radicals, inhibiting lipid peroxidation, enhancing antioxidative defenses, and increasing the production of SOD and GPx activity and expression in different tissues. These compounds may be involved in glycogen metabolism to meet the requirement of working skeletal muscles and act as antioxidants by terminating the chain reaction of lipid peroxidation to maintain the morphological stability of mitochondria in spinal motor neurons. These observations suggest that E. kansui has antioxidative and antifatigue properties and can be given as prophylactic and (or) therapeutic supplements for increasing antioxidant enzyme activities and preventing lipid peroxidation during strenuous exercise.

Comparison of the protective effects of cromolyn sodium and nedocromil sodium in the treatment of exercise-induced asthma in children

1994 ◽  
Vol 94 (4) ◽  
pp. 684-688 ◽  
Author(s):  
Fernando M. de Benedictis ◽  
Gianluca Tuteri ◽  
Alberto Bertotto ◽  
Lucio Bruni ◽  
Renato Vaccaro
Keyword(s):  
Cromolyn Sodium ◽  
Nedocromil Sodium ◽  
Protective Effects ◽  
Asthma In Children ◽  
Exercise Induced

Effects of vitamin E supplementation on exercise-induced oxidative stress: a meta-analysis

2014 ◽  
Vol 39 (9) ◽  
pp. 1029-1037 ◽  
Author(s):  
Vahan Stepanyan ◽  
Melissa Crowe ◽  
Nagaraja Haleagrahara ◽  
Bruce Bowden
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Vitamin E ◽  
Muscle Damage ◽  
Meta Analysis ◽  
Protective Effects ◽  
Study Selection ◽  
Exercise Induced ◽  
Study Designs ◽  
Selection Of

Tocopherols (commonly referred to as “vitamin E”) are frequently studied antioxidants in exercise research. However, the studies are highly heterogeneous, which has resulted in contradicting opinions. The aim of this review is to identify similar studies investigating the effects of tocopherol supplementation on exercise performance and oxidative stress and to perform minimally biased qualitative comparisons and meta-analysis. The literature search and study selection were performed according to Cochrane guidelines. A 2-dimensional study execution process was developed to enable selection of similar and comparable studies. Twenty relevant studies were identified. The high variability of study designs resulted in final selection of 6 maximally relevant studies. Markers of lipid peroxidation (malondialdehyde) and muscle damage (creatine kinase) were the 2 most frequently and similarly measured variables. Meta comparison showed that tocopherol supplementation did not result in significant protection against either exercise-induced lipid peroxidation or muscle damage. The complex antioxidant nature of tocopherols and low accumulation rates in muscle tissues could underlie an absence of protective effects.

The Effect of Prolonged Submaximal Warm-up Exercise on Exercise-induced Asthma

1989 ◽  
Vol 139 (2) ◽  
pp. 479-484 ◽  
Author(s):  
Daniel B. Reiff ◽  
Nozhat B. Choudry ◽  
Neil B. Pride ◽  
Philip W. Ind
Keyword(s):  
Warm Up ◽  
Exercise Induced

scholarly journals Effects of macro- and micronutrients on exercise-induced hepcidin response in highly trained endurance athletes

2017 ◽  
Vol 42 (10) ◽  
pp. 1036-1043 ◽  
Author(s):  
Dylan T. Dahlquist ◽  
Trent Stellingwerff ◽  
Brad P. Dieter ◽  
Donald C. McKenzie ◽  
Michael S. Koehle
Keyword(s):  
Oxygen Uptake ◽  
Power Output ◽  
Maximal Oxygen Uptake ◽  
Athletic Performance ◽  
Iron Absorption ◽  
Regulatory Protein ◽  
Endurance Athletes ◽  
Warm Up ◽  
Macro And Micronutrients ◽  
Exercise Induced

Iron deficiency has ergolytic effects on athletic performance. Exercise-induced inflammation impedes iron absorption in the digestive tract by upregulating the expression of the iron regulatory protein, hepcidin. Limited research indicates the potential of specific macro- and micronutrients on blunting exercise-induced hepcidin. Therefore, we investigated the effects of postexercise supplementation with protein and carbohydrate (CHO) and vitamins D3 and K2 on the postexercise hepcidin response. Ten highly trained male cyclists (age: 26.9 ± 6.4 years; maximal oxygen uptake: 67.4 ± 4.4 mL·kg–1·min–1 completed 4 cycling sessions in a randomized, placebo-controlled, single-blinded, triple-crossover study. Experimental days consisted of an 8-min warm-up at 50% power output at maximal oxygen uptake, followed by 8 × 3-min intervals at 85% power output at maximal oxygen uptake with 1.5 min at 60% power output at maximal oxygen uptake between each interval. Blood samples were collected pre- and postexercise, and at 3 h postexercise. Three different drinks consisting of CHO (75 g) and protein (25 g) with (VPRO) or without (PRO) vitamins D3 (5000 IU) and K2 (1000 μg), or a zero-calorie control drink (PLA) were consumed immediately after the postexercise blood sample. Results showed that the postexercise drinks had no significant (p ≥ 0.05) effect on any biomarker measured. There was a significant (p < 0.05) increase in hepcidin and interleukin-6 following intense cycling intervals in the participants. Hepcidin increased significantly (p < 0.05) from baseline (nmol·L–1: 9.94 ± 8.93, 14.18 ± 14.90, 10.44 ± 14.62) to 3 h postexercise (nmol·L–1: 22.27 ± 13.41, 25.44 ± 11.91, 22.57 ± 15.57) in VPRO, PRO, and PLA, respectively. Contrary to our hypothesis, the drink compositions used did not blunt the postexercise hepcidin response in highly trained athletes.

scholarly journals Protection of Lotus Seedpod Proanthocyanidins on Organs and Tissues under High-intensity Excercise

2015 ◽  
Vol 9 (1) ◽  
pp. 296-300 ◽  
Author(s):  
Zhang Mengyan
Keyword(s):  
Blood Cell ◽  
High Intensity ◽  
Myocardial Damage ◽  
The Body ◽  
High Intensity Exercise ◽  
Protective Effects ◽  
Protective Function ◽  
Health Products ◽  
Exercise Induced ◽  
Lotus Seedpod

Lotus seedpod proanthocyanidins (LSPC) as a kind of polyphenols is widely used in medicines, cosmetics, health products. High-intensity exercise can cause damage to the body's organs and tissues. Different doses of LSPC is given to mice to check the function of protect effect to the body's organs and tissues under high-intensity exercise. The hemoglobin (HB) content, red blood cell (RBC) number and white blood cell (WBC) number were tested for mice after exercise. The activity of superoxide dismutase (SOD) and the contents of glutathione (GSH) and malondialdehyde (MDA) in muscle and viscera were evaluated. The result showed that LSPC can effectively reduce inflammation reaction in the body of mice with high intensity exercise, alleviate oxidative stress-induced injury of tissues and organs, and execute protective function on skeletal muscle and cardiac muscle. And the LSPC could enhance myocardial anti-oxygen and enzymatic activity which suggests the protective effects of resveratrol against exercise-induced myocardial damage in mice.

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