The effect of pre-season football training on hematological parameters of well-trained young male football players

Abstract

<jats:p>Background and Study Aim. The purpose of this study was to examine the effect of metabolic stress created by 6-week football training applied in the pre-season period on circulation and hematological parameters of well-trained male football players.&#x0D; Material and Methods. Fourteen male football players who competed in the U19 category of a football team in Turkish Football Super League participated in the study voluntarily. In the study, players’ systolic - diastolic blood pressures and resting heart rates were measured and their blood samples were taken before and after the 6-week training period. Laboratory analysis was made to determine counts and concentration percentage of erythrocyte, leukocyte, and platelet sub-parameters. Wilcoxon Signed-Rank test was performed to determine the difference between pre and post measurements.&#x0D; Results. Our findings indicated that baseline mean values of lymphocyte, mean cell hemoglobin, and mean corpuscular hemoglobin concentration were significantly higher than posttest mean values. The mean of diastolic blood pressure and resting heart rate measured before the preseason training camp were lower than their posttest mean values (p &gt; .05).&#x0D; Conclusion. It is thought that the decrease in the mean values of diastolic blood pressure and resting heart rate caused by the effect of regular training during the preseason training period, while the increase in the mean values of mean cell haemoglobin and mean corpuscular haemoglobin concentration caused by the increased oxygen demand of the metabolism during the training period.&#x0D; </jats:p>

Blood Biomarkers Variations across the Pre-Season and Interactions with Training Load: A Study in Professional Soccer Players

“…Moreover, a study conducted on 13 male soccer players, with significant augment in PLT levels (209.76 ± 33.83 to 249.76 ± 61.09 × 103/µL) was noted following 2 weeks of pre-tournament moderate-to-high intensity training period [ 49 ]. Contrary to our study, Ozen et al [ 50 ] found an increase in PLT after the pre-season training period in well-trained young soccer players. However, their reported increase (pre: 205.57 ± 54.94, post: 214.85 ± 23.12) was not significant.…”

“…In other study, it was noted that there was an increase in neutrophils and a decrease in lymphocytes after short periods of pre-tournament training [ 49 ]. Ozen et al [ 50 ] reported no significant differences in subpopulations of leukocytes (lymphocytes, neutrophil, monocyte, and basophil percentage) after the pre-season period in young male football players. In a previous study, which was not consistent with the findings of our study in terms of neutrophil, an increase in neutrophil counts was found after regular and vigorous soccer exercises, and it was suggested that this situation was associated with minor inflammatory events [ 22 ].…”

Fitness Training for College Soccer Players

“…N I represents the torque contribution of each muscle at different training stages. 6 We use Equation ( 4) to extract the biomechanical features of the muscles under different training stages…”

The effects of acute high intensity interval training on hematological parameters and neutrophils to lymphocytes ratio in elite taekwondo athletes according to gender

“…11 Hematological parameters are affected by both the frequency, intensity, type and duration of the exercise, as well as the age of the person, eating habits and the environment. 12 In many studies, it has been shown that regular training makes changes the hematological patterns of many athletes, including TKD, but in some studies it does not. [13][14][15][16] Due to the close contact between the athletes during the TKD sport, the risk of injury that causes various levels of tissue damage has always been inherent in this sport.…”