Sports Science
Communication
Biosci. Biotech. Res. Comm. 9(2):
Effect of a periodic aerobic and anaerobic selective training with use of green tea on certain inflammatory factors and oxidative stress of male athletes
Naghmeh Naseri, Shahla Hojjat* and Asghar Khaledan
Department of Physical Education and Sport sciences, Islamic Azad University, Karaj Branch, Alborz, Iran
ABSTRACT
Due to the lack of complete information on the effects of aerobic and anaerobic exercises with taking supplements of green tea on malondialdehyde (MDA), creatine kinase, cortisol, this study was conducted to examine the effects of aerobic and anaerobic selective training (resistive) associated with the consumption of green tea on inflammatory factors and indicators of oxidative stress in male athletes of 20 to 35 years of age. In this study 60 male athletes were selected and randomly divided into 6 groups: Group A: aerobic exercise with green tea, Group B: aerobic exercise, group C: anaerobic exercise (resistive) with green tea, group D: anaerobic exercise (resistive), group E: only green tea and group F were conducted just their exercises (control).Results showed that doing aerobic exercises, anaerobic (resistive), aerobic and resistive exercise with green tea may increase MDA to effect on the number of oxidative stress and inflammation factors.
KEY WORDS: GREEN TEA, ANAEROBIC EXERCISE (RESISTIVE), AEROBIC EXERCISE, OXIDATIVE STRESS, INFLAMMATION
INTRODUCTION
Oxidative stress with damage to the kinds of cellular infrastructures reduces cell and physical function and muscle damage (Alok et al., 2003), (Anne et al., 2004), (Atalay et al., 2000). Some researchers believe that by adopting different strategies in order to inhibition of oxidative stress and lipid peroxidation and its reduction can be prevented from decline of sporty performance and even take step in improving it and increasing tolerance
ARTICLE INFORMATION:
*Corresponding Author: projeh.hojat@gmail.com Received 1st May, 2016
Accepted after revision 28th June, 2016 BBRC Print ISSN:
Thomson Reuters ISI SCI Indexed Journal NAAS Journal Score : 3.48
©A Society of Science and Nature Publication, 2016. All rights reserved.
Online Contents Available at: http//www.bbrc.in/
to exercise (Maria et al., 2003). Oxidative stress occurs when that creation of reactive species that are known as free radicals, in a system of ability of the system goes beyond to neutralization and removing these mol- ecules (Bloomer, 2007), (Bloomer and Gold Farb, 2004). Since the oxidative stress during and looking to sport occurs only if the production of reactive oxygen species caused by sport goes beyond of the body’s antioxidant potential capacity (Konig et al., 2001), (Radak et al., 2001).
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Green tea plant is cultivated and grown in Southeast Asia, including China, India, Japan, as well as in many African countries including South Africa (Luximo and Ramma, 2005). Tea leaves have medical consumption as well as aspect of the soda consumption in commu- nity. From 3 thousand years before Christ, traditional medicine of China have used green tea for headaches, body aches, ease of digestion, and increase in immunity defense power (safety), prevention of poisoning, and also an energizing substance, and causing lifetime (Ferrara et al., 2001). Green tea may prevent the oxidation of LDL cholesterol and thereby reduces the buildup of plaque in the arteries that thus improves cholesterol levels and cardiovascular health, and epigallocatechin – 3 – gal- lat (EGCG) prevents the activities of Metallo proteinases (MMPs), these have been implicated in the destruction of collagen and thus the effects of repression in cartilage damage in joints. Hence green tea may also reduce the severity of rheumatoid arthritis (Babitha et al., 2009). Among the most important group of antioxidants can be noted to flavonoids. As, green tea is an important source of flavonoids, it contains a group of polyphenolic flavonoids compounds called catechins and among the catechins, Epigallo catechin gallat (EGCG) are powerful antioxidants and the most common and most abundant polyphenols present in green tea (Murase et al., 2002).
Researchers in a study have confirmed the protec- tive effect of green tea [(600 ml per day) 3 times per day, 200 ml of boiling water with 2 g of dry green tea] in reducing lipid peroxidation during intense resistive exercise (Panza et al., 2008). In another study also have reported green tea can increase antioxidant capacity and reduces oxidative stress caused by strength exercises with intensity of 60% (1RM) (Jowko et al., 2011). On the other hand (Call et al., 2008) in a research examined the endurance capacity of Maturity in mice MDX has increased by combining voluntary running with wheel- chairs and green tea extract. The data show that every 2 of endurance training and green tea extract (GTE) as the therapeutic strategies for improving muscle performance may be useful in MDX mice. In another study (Jordan et al., 2007), they studied effects of green tea supple- mentation on the onset of muscle soreness and oxida- tive stress (oxidative stress), the workers have found that level of CK significantly increased at 24 hours after exercise.
But (Jowko et al., 2007) in a study performed by the effects of green tea extract Balance of reducing men oxidation exposed to intense strength exercises, spe- cially muscle exercises) found these findings that mus- cle exercises prevents the Increasing caused by exercise in plasma CK activity and is decreased the activity of superoxide dismutase (SOD). While (Azizi et al., 2012) in his study found these results that oxidative stress of
ROS in the production of inflammatory cytokines caused by exercise is effective. Against the consumption of antioxidant supplement has effective role in reducing induced cytokine production caused by exercise. In this regard,
Therefore, due to contradictory results obtained and the paucity of information in the field of green tea sup- plementation during aerobic and anaerobic activities (resistive) and its role on some inflammatory factors and indicator of oxidative stress in athlete subsequent of this type of exercises doing detailed studies and controlled has not been studied in this area, this study has been designed.
MATERIAL AND METHODS
The research methodology is type of semi experimental test. The statistical population were all male athletes of Tehran which by calling 100 people voluntarily (partici- pating). That among these (N=100) 60 people to pur- posefully (questionnaires) randomly selected as samples (simple) and were divided into 6 groups [5experimental groups (N=50(and 1 control groups (N=10)], (Ghasemi et al., 2012)
Including: Group A: Aerobic exercise with green tea Group B: Anaerobic exercise (resistive) with green tea. Group C: Just ate green tea, Group D: Only aerobic exercise, Group E: Just anaerobic exercise (resistance) and Group F: Just did their regular exercise (control). A week before the performing test measurements of height, weight, age and familiarity with the test methodology and receiving written consent were taken from the sub- jects. In addition, all subjects were in perfect physical and mental health and had no history of cardiovascu- lar diseases, respiratory diseases and certain diseases. Before the starting from subject a
AEROBIC EXERCISE
Aerobic exercises was doing aerobic exercises, which included 15 minutes of
ANAEROBIC EXERCISE (RESISTIVE)
Anaerobic exercise (resistive) that included a
TAKING SUPPLEMENTS GREEN TEA
In the groups that was considered taking supplement green tea the subjects were asked to maintain their diet for 8 weeks, 3 days per week the average 200 ml of green tea (2 g of dry leave green tea in 200ml water in temperature of
Naghmeh, Shahla and Asghar
form) from kit that kept is kept at 2 to 8˚C, removed and for standard and controlling samples we pour 25 microliters in each well then 50 ml of the cortisol’s enzyme solution prepared added to each of microbes and mixed thoroughly and we shake 20 to 30 seconds. For measuring serum Malondialdehyde, Nanomol / ml in wavelength of 534˚nm nanometers by
The following two methods are used for measuring MDA:1.Spectrophotometry (TBARS)2. Method of (HPLC)
/532 nm 1.MDA in serum is separated by connect- ing with (TBA) and serum proteins are precipitated by TCA centrifugation. Then, TBA complex is measured at a wavelength of 534 nanometers. Necessary solutions include:1.TCA solution 17.5 percent 2. TCA solution 70 percent 3. TBA solution 0.6 percent. Test methodology is as follows:
Calculation of Results: The concentration of MDA in nmol / ml is calculated by the following formula:
Abs (test) – Abs blank 1/56×1051/56×105
Method of HPLC after sample preparation for measur- ing MDA prepared solution by syringe for the device of HPLC injected and in wavelength of 532 nm in stand- ard of determined concentration of MDA and MDA we obtain samples by using the standard curve (AL
BLOODLETTING AND MEASURING
INDEXES OF RESEARCH
Bloodletting after 12 to14 hours fasting was performed in two stages of (before starting exercises means one day before starting the exercises, and after 8 weeks of exercise). In the first stage bloodletting that was done in
METHODOLOGY INCLUDES OF THE
FOLLOWING CASES
To number of patients of Standard and control of Elisa microbes wells (wells within the micro plate as a square
WAY OF MEASURING THE CREATINE KINASE
For measuring creatine kinase (CK - MB), micro liter in 340˚nm wavelength with the Cubas auto analyzer device and photometric method was used.
Method: (DGKC), (Deutsche Gesellschaft für clinical chemistry (DGKC) and (IFCC), [InternationalFederation of clinical chemistry (IFCC)]. Test methodology: wave- length: 340 nanometers, cuvette diameter: one centim- eter, temperature 37˚C, and measurement: photometer with Blank consumption is set to zero. (Stein et al., 1998), (Moss et al., 1999), (Ürzburg et al., 1977).
STATISTICAL METHODS
For recognizing and naturalization of data, Kolmogorov and Smirnov test has been used and it was identified that groups are not different from each other. Descrip- tive statistics was used in order to calculating central indexes and dispersion was used. Inferential statistics was used for unilateral variance analysis statistical test and tukey post hoc test. Significance level was consid- ered as alpha 0.05. All statistical operations were done through SPSS software version 20.
Naghmeh, Shahla and Asghar
RESULTS AND DISCUSSION
First hypothesis: Part I: Investigating effect of aerobic exercise and green tea on the three variables of MDA, CK and CORT Null hypothesis: Aerobic exercise along with green tea has no significant impact on the amount of MDA of male athletes of 20 to 35 years old.
The results of
=1.124, Sig = 0.352) Table 1 shows
SECOND HYPOTHESIS
Null hypothesis: Aerobic exercise along with green tea has no significant impact on the amount of CK of male athletes of 20 to 35 years old.
The results of
analysis test results for comparison of the amount of changes in plasma resting CK in four groups of aerobic exercise along with green tea, aerobic exercise, green tea, and control.
THIRD HYPOTHESIS
Null hypothesis: Aerobic exercise along with green tea has no significant impact on the amount of CORT of male athletes of 20 to 35 years old.
The results of
=0.721, Sig = 0.546) Table 3 shows
PART II: INVESTIGATION THE EFFECT OF AEROBIC EXERCISE (RESISTANCE) AND GREEN TEA ON THREE VARIABLES OF MDA, CK AND CORT
Forth hypothesis : Null hypothesis:Resistive exercise along with green tea has no significant impact on the amount of MDA of male athletes of 20 to 35 years old.
Table 1: Test Results One way ANOVA for amount of resting plasma MDA changes of four groups of research
Table 2:
Table 3:
The results of
tea, resistive exercise, green tea, and control (F3,18.86 = 3.276, Sig = 0.044)(There was no homogeneity of vari-
ance between forth groups, so Welch amendment has been done). Table 4 shows
Naghmeh, Shahla and Asghar
of male athletes of 20 to 35 years old. The results of
cise, green tea, and control (F3,36 = 8.301, Sig = 0.000). Table 6 shows
comparison of the amount of changes in resting CORT in four groups of resistive exercise along with green tea, resistive exercise, green tea, and control.
FIFTH HYPOTHESIS
Null hypothesis:Resistive exercise along with green tea has no significant impact on the amount of CK of male athletes of 20 to 35 years old.
The results of
SIXTH HYPOTHESIS
Null hypothesis: Resistive exercise along with green tea has no significant impact on the amount of CORT
PART III: COMPARISON OF THE EFFECT OF AEROBIC EXERCISE AND ANAEROBIC (RESISTANCE) AND GREEN TEA ON THREE VARIABLES OF MDA, CK AND CORT
Seventh hypothesis: Null hypothesis: There is no sig- nificant difference between the impact of aerobic exer- cise along with green tea, and between resistive exercise along with green tea, and green tea on the MDA of male athletes of 20 to 35 years old. The results of
(F5,24.28 = 2.256, Sig = 0.081) (there was no homogene- ity of variance between four groups, so Welch amend-
ment has been done). Table 7 shows the results of one- way variance analysis test results for comparison of the amount of changes in plasma resting MDA in six study groups.
Table 4:
Table 5:
Table 6:
Naghmeh, Shahla and Asghar
Table 7:
Table 8:
EIGHTH HYPOTHESIS
Null hypothesis: There is no significant difference between the impact of aerobic exercise along with green tea, and between resistive exercise along with green tea, and green tea on CK of male athletes of 20 to 35 years old.
The results of
CK showed (F5,24.77 = 4.098, Sig = 0.008) (there was no variance homogeneity between four groups, so Welch
amendment has been done). Table 8 shows the results of
NINTH HYPOTHESIS
Null hypothesis: There is no significant difference between the impact of aerobic exercise along with green tea, and between resistive exercise along with green tea, and green tea on CORT of male athletes of 20 to 35 years old. The results of
The present study showed that doing aerobic, anaer- obic (resistance) exercise, and aerobic and resistance
exercise along with green tea may increase MDA and affect some factors of oxidative stress and inflamma- tory. Researchers believe that although different cells and textures of body produce free radicals as a part of metabolism but sometimes such as during work and physical activity, producing these radical species will go beyond body’s antioxidant capacity and will lead to oxi- dative stress (Bloomer et al, 2005). Green tea as a strong antioxidant supplementary paly and effective role in neutralization free radicals and increasing the capacity of body’s antioxidant system and reducing lipid peroxi- dation (Kuriyama et al, 2008) and (Yuan et al, 2011).
In extreme resistance exercises, the process of ischemia and reperfusion and mechanical loads exerted on the involved soft tissues have effective role in the creation of lipid peroxidation and the production of free radicals (Dixon et al, 2006). During exercise diversion of blood to the skin and active muscles cause transient tissue hypoxia and lack of coordination of active oxy- gen consumption and oxygen requirements in the active textures during high intensity exercise; although fol- lowing
Generally these compounds because of having hydroxyl groups can neutralize free radicals and can act as the electron or hydrogen donor (Katiyar et al, 2007). Catechins found in green tea especially (EGCG) may inhibit the process of lipid peroxidation through reduc- ing the production of free radicals (mainly because of having dihydroxy phenol structure) as well as recon- struction of tocopherol (converting tocopherol to tocopherol radical). Through connecting copper element and preventing connecting this element to lipoproteins, Catechins can significantly prevent reducing tocopherol
Table 9:
concentrations in plasma and cause a delay in beginning the process of plasma lipid peroxidation. (Ostrowska et al, 2006).
Recently, Ghasemi et al, (2013) have reported the consumption of green tea for 14 days as the reason for increasing TAC significantly and significant decrease of MDA by intense resistance activity with the strength of 85% (RM1) in health
The reasons of these disagreements may be because of supplements, exercise, exercise intensity, samples (healthy or patient human or animal model) and gender (male or female) because on the contrary of (Alkihamees et al, 2013), in current study the type of supplementary has been green tea and considering misalignment (Gha- semi et al, 2012), in current findings the type of done exercise has been aerobic exercise and intensity aerobic exercise 65 to 75 percent of maximum heart rate and on the contrary of (Swamy et al, 2011) in current research, it can be said that all participants were healthy athlete men. The researches have also showed that Malondial- dehyde is a secondary product of lipid peroxidation that is measured as the index of oxidative stress (Ghasemi et al, 2012) and final product of oxidation of lipid per- oxidase is in lipid membrane of cells in the body that inflammation processes have been increased there and in case of neutralization by body’s respiratory system can damage structure and function of cell membranes of the body (Devasagayam et al, 2004) and (Nielsen et al, 1997).
We have some evidences out of recent researches that intensive physical activity not only
Naghmeh, Shahla and Asghar
which is reflected by increasing blood concentration with its products that is Hydroxy fatty peroxidase (LOOH), MDa as well as Thiobarbituric substances with acid reac- tive (TBARS) (Davies et al, 1982). In done researches by (MC Bride et al, 1998), intense resistance training stimu- lates increasing in MDA concentration in blood which in higher level before exercise was maintained even till 24 hours. Most of researches have also showed that one level of boring exercise or intensive sport activity or in long period cause increasing the index of oxida- tive stress (MDA) and decreasing the capacity of total serum antioxidant (Tauler et al, 2006) and (Jafari et al, 2011).
In spite of this, one hand available oxygen increase production of free radicals and along intensive physical activities which we face increasing consuming oxygen their producing will reach to several times of the rest- ing mode (Tauler et al, 2006), Malondialdehyde or MDA as a free radical is a deformation of hydrogen peroxide (H2O2) that is effective on creation of conditions of oxi- dative stress and blood, MDA of tissue damage (Tauler et al, 2006). Increasing the concentration of MDA in blood is also dependent on the intensity of sport and whatever the intensity of activity is more, production and releas- ing MDA will increase as well (Valado et al, 2007).
Considering that one of the very likely mechanisms involved in cell damage is increasing leakage of free radicals and oxidative stress caused by them, Malon- dialdehyde index which represents the value of lipid peroxidation (Cell membrane lipid oxidative damage), it was investigated as possible mechanisms involved in causing harm (Chiaradia et al, 1998) and (Frankiewicz- Jozko et al, 1996). Also considering that glutamine is the precursor of glutathione so glutathione can decrease lipid peroxidation and free radicals through increas- ing the capacity of plasma antioxidant (Cotgreave et al, 1998). On the other hand the reaction of free radicals with cells skin will lead to produce one of the stress indexes that provide the possibility of measuring oxida- tive stress indirectly by an oxidative called Malondialde- hyde ,( Bride et al, 1999). Considering the implemented researches, it can be said that other factors related to type of exercise, sports field, exercise intensity, exercise duration, type of training, supplements, supplementa- tion dose, gender, samples (human or animal model) and other factors can also be effective on decreasing or increasing MDA.
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