Levels of aerobic fitness as an unfair parameter in Algerian football training programs

. Aerobic capacity is a vital factor for soccer achievement. Disclose by professionals over VO 2 max of 60 ml/kg/min recommended as the minimum fitness condition for male soccer players to play at leading levels. Founded on the principle kinetics analyse, which confirms that among competitive soccer players, wing-backs and central midfielders cover long distances at high speed, then by defenders and attackers. Our objective is to test 180 well-trained male senior player, first division Algerian Championship. Dived biased on their post-game. Controlled at the end of the preparatory phase before the start of the Algerian Championship 2016–2017. Tested by Cooper tests to estimate their VO 2 max and body fat percent (BFP) and index body mass (BMI). As simple tools to control their optional body weight relates to their aerobic fitness. Our results support the uniform of Algerian training programmes aerobic capacity. Conclude through the present founded on kinetics analyse, which confirmed that in competitive soccer players, wing-backs and central midfielders cover long distances at high speed, then by defenders and attackers. Our results show that VO 2 max L/min was insignificant based on the post-game, where this result confirms to users the negative effect of the moderate-intensity exercise intervention and its consequences on develops of recommended levels of VO 2 max relative to proper individuals programme fitness helping players to manage body weight or stroke. Disclose by professionals over VO 2 max of 60 ml/kg/min recommended as the minimum fitness condition for male soccer players to play at leading levels.


Introduction
n professional soccer, the player/team's performance profile is linked to biological and environmental factors. Claims by specialists through aerobic capacity, as a significant factor that affects the final league ranking, the quality of the game and the covered distances (Bekris et al., 2016). Estimate in the case of speed performance among competitive soccer players, in the benefits of the forwards as the fastest followed by the central midfielders, the wide defenders/midfielders and then the central defenders. In fact (Hong, 2014) set that wingbacks and central midfielders cover long distances at high speed then by defenders and attackers. Confirmed by (Strudwick, 2016) as a significantly greater total distance covered during elite soccer match play, shown in the benefits of central midfielders and wide midfielders (both about 12 to 13 km). Interpret by (Simini & Bertemes-Filho, 2018) that midfielders are the shortest players, with the smallest amount of Fat Muscle. For the above proofs and previous studies, that advises the significant relation between VO2max and distance covered during a match, as much as rank order in the league of the best teams (Hoff et al., 2002). Set by Researches at 60 ml/kg/min of VO2max suggested as the minimum fitness requirement for male soccer players to play at an elite level (Almeida et al., 2018).
The aim of this study was to evaluate aerobics capacity levels as an index to estimate the injury of Algerian soccer training programs under the postgame demands. Admitted in the similar study as the most common method to enhance cardiorespiratory fitness and recover faster associate with high levels of VO2max players at 60 ml/kg/min suggested as the minimum fitness requirement for male soccer players (Bompa & Claro, 2008). As well as the most important area of any fitness program helping the active persons to control their body weight or stroke.

Methods
The present study compared the aerobic performance of soccer players based on their different playing positions and their competitive levels through the 12-minute Cooper test. Performance in this test was assessed with players VO2max relative to its position game (midfielders, defenders and attackers) as well as their body composition estimated built on BMI and BFP formulas. Support by (Sathi, 2016) as an accurate measure of weight, body fat, body muscle and body mass index and keep track of weight loss goals among Sports and Fitness programs, according to (Statle, 2016).
Our goals are to anticipate differences among the groups that would make it possible to define the variables that determine the injury of Algerian soccer training programs.

Participants
A total of 180 male adult elite players, representing some teams from the league Oran years 2016-2017. Were examined by the Research Team 5 Laboratory OPAPS in parameters (anthropometric and physiological) during the transition phase of the championship-see Table 1.

Cooper 12-minute Run Test
Is a popular maximal running test of aerobic fitness, in which participants try to cover as much distance as they can in 12 minutes. To estimate VO2max (in ml/kg/min) from the distance scored, we use the formula VO2max = (22.35 x km) -11.29. Admit by (Reilly, 2003) as a better indication of an individual's state of aerobic, directly related to the physical demands and physiological cardiovascular function.

Body Mass Index (BMI)
BMI was calculated from body mass (W) and height (H). BMI = W / (H 2 ), where W = body mass in kilograms and H = height in metres.

Body fat percent (BFP)
In adults (Deurenberg et al., 1991) set that the prediction formula was BFP= 1.20 x BMI + 0.23 x age -10.8 x sex (males = 1, females = 0) -5.4. Its validity is comparable to the prediction error obtained with other methods of estimating BFP, such as skinfold thickness measurements or bioelectrical impedance.

Statistical Analysis
Data analysis was performed using SPSS 22.0 for Windows (32-bit) (IBM, Armonk, NY, USA). Data obtained from the tests showed the homogeneity of the sample, presented as mean ± standard. Anova one way was used to determine the differences between players based on post-game as protocol integrates into this study. Although the relationship between the variables was analysed by Pearson correlations (r). All statistical significance set at 0.05.

Results
Based on the protocol used and the results in Table 1 and Figure 1.
Our results show that there is no difference between our players under their post-game. State in the present by the insignificance of ANOVA one way in all the parameters studies and the inverse correlation between VO2max and body weight, fat or fatness Table 2. In the opposite of height. From that, we agree on the inadequate of Algerian programs devoted to developing aerobic capacity based on post-game recruitments. Clams by the author through 60 ml/kg/min of VO2max suggested as the minimum fitness requirement for male soccer players to play at leading levels. Affirmed by previous studies back on the significant relation between Vo2max and distance covered during a match, test or training as well as a rank Mohammed et al., 2018 Turk J Kinesiol 2018; 4(4): 113-117 order and placement in the league of the best teams compared with those in the lowest-placed team (Hoff et al., 2002). Admit by (Bekris et al., 2016) as an important factor that affects the quality of the game. Estimate through 60 ml/kg/min as an advantage to play in top elite leagues. Disclosed by (Silva et al., 2016) at 69 ml/kg/min with individual values higher than 70 mL-kg-1 min according to (Hong, 2014). Interpret by (Simini & Bertemes-Filho, 2018) in the benefits of players with the smallest amount of Fat Muscle. Advanced by (Dawes, et al., 2016) via the evidence that increase of body fat or fatness is associated with decreasing capacity of aerobic fitness. Suggests as a targeted approach applied in efforts to achieve optimal improvement in physical fitness performance allied to athletics body and performance.

Table 1
Descriptive characteristics of the soccer players participating in the study based on post player's game.

Discussion
Based on the study design and statistical applied. Our finds confirm the evidence that VO2max up to ≥ 60 ml/kg/min is beneficial physiological training response among soccer players. Admit by (Scribbans et al., 2016) at any intensity above ~60% of VO2max is likely to improve maximal oxygen uptake in healthy adults. Suggest in the present through training at or greater than ~ 60% of VO2max to improve maximal oxygen uptake as well as the decreases body weight or stroke. Confirmed by Zouhal et al. (2013) at high-intensity intermittent methods. Supported by Thevenet et al. (2007) as a good criterion to judge the effectiveness of this exercise on the development of physiological soccer post and games recruitments. Affirmed by Fortuna et al. (2018) above the increases of distance run during the match, performed work, the number of sprints and the number of actions with the ball.

Table 2
Presents the correlations between the variables tested in the current study.

Pearson correlation Height Weight BMI BFB
VO2Max r 0.51 ** -0.25 ** -0.27 ** -0.28 ** p .00. .001 .000 .000 From the above, we reach agreed that evaluation of aerobics capacity levels is a key index to estimate the injury of Algerian soccer training programs under the post-game demands. Admitted in the similar study as the most common method to enhance cardiorespiratory fitness and recover faster associate with high levels of VO2max players at 60 ml/kg/min of VO2max (Almeida et al., 2018), suggested as the minimum fitness requirement for male soccer players. As well as the most important area of any fitness program helping the active persons to control their body weight or stroke. Set in similar as advantage in the benefits of the top team compared with those in the lowest placed among the Norwegian elite league, according to Hoff et al. (2002). Interpret by Zouhal et al. (2013) as training body adaptation, allied to body composition management (Insel et al., 2016). Admit in this study via the levels of aerobic capacity relative to changes in body fat or percent (Mohammed et al., 2016) as effective endurance training to improve maximal oxygen uptake allied to physiological soccer demands. Conclude via this study as an unfair parameter in Algerian football programs under kinetics analyses, which confirmed that in competitive soccer players, wing-backs and central midfielders cover long distances at high speed, then by defenders and attackers. The case of this study confirmed by the insignificance of ANOVA one way in all the parameters studies and the inverse correlation between VO2max and body weight, fat or fatness, see Table 2.

Conclusion
Our finds confirmed that Algerian training programs do not respect the minimal VO2max requirement based on the different player's positions. Confirmed by kinetics analyse among competitive soccer players, where wing backs and central midfielders cover long distances at high speed, then by defenders and attackers. Affirmed by (Hong, 2014) in the benefits of wing-backs and central midfielders that cover long distances at high speed, then by defenders and attackers. Established by (Strudwick, 2016) as a significantly greater total distance covered during elite soccer match play, shown in the benefits of central midfielders and wide midfielders (both about 12 to 13 km). Disclosed in the similar study as the most common method to enhance cardiorespiratory fitness and recover faster associate with high levels of VO2max players at 60 ml/kg/min of VO2max (Bompa & Claro, 2008), suggested as the minimum fitness requirement for male soccer players (Almeida et al., 2018). As well as the most important area of any fitness program helping the active persons to control their body weight or stroke.