SOCCER MATCH INDUCED FATIGUE EFFECT ON LANDING BIOMECHANIC AND NEUROMUSCULAR PERFORMANCE

###EgeUn###Introduction: Insufficiencies in landing biomechanics and neuromuscular fatique that induced from sportive activities are risk factor for sport injuries. The combination of these factors increases the risk of sports injuries. Aim of the study was to evaluate the of effectivness of soccer match induced fatigue on landing biomechanical parameters and neuromuscular performance. Materials and methods: Eighteen young professional male soccer players were included the study. Fatigue level was assessed with the Borg Rate of Perceived Exertion and Pain Scale (BRPEPS). Neuromuscular function measured using a force platform during drop jump test. The Landing Error Scoring System (LESS) was used for infucient of landing biomechanics. The night before the offical march when players were not tired was selected for the pre-match test. The post-match test was conducted in two hours following the end of the match. Results: The difference of pre and post match the BRPEPS was statistically significant (p < 0.05). There were no statistically signcant differences between pre-match and post-match neuromuscular performance values. However, pre-match and post-match LESS scores were statistically significant different (p < 0.05). Conclusion: It was concluded thatfatigue that occurs in a soccer match disrupts landing biomechanics. Impairment of landing biontechanics doesn't relented with neuromuscular function, but reduction of postural control, proprioceptive acuity and neromuscular control may affect landing bionzechanics.Altinordu Football ClubThanks to Altinordu Football Club and its employees for their support. No financial support was received for the study

Effects of aerobic training on serum paraoxonase activity and its relationship with PON1-192 phenotypes in women

WOS: 000392924800018PubMed ID: 30356554Background: Paraoxonase 1 (PON1) is an antioxidant enzyme that protects high-density lipoprotein (HDL) and low-density lipoprotein against oxidation. Limited studies have addressed the influence of exercise on PON1 activity and its relationship with PON1 phenotypes. We investigated relationships between PON1-192 phenotypes, PON1 activity, aerobic exercise, and blood lipid and lipoprotein concentrations in middle-aged women. Methods: An exercise group (n = 50) engaging in regular aerobic exercise and a control group (n = 41) were selected from a subset of 300 Caucasian women that met the inclusion criteria. Serum PON1, salt-stimulated PON1 (SSPON1), and arylesterase (ARE) activities; cholesterol levels and ARE activities of total HDL and HDL subgroups (HDLs) (supernatants obtained by polyethylene glycol); and blood lipid and lipoprotein concentrations were determined by standardized enzymatic methods. PON1-192 QQ (low activity), QR (moderate activity), and RR (high activity) phenotype groups were defined using serum SSPON1/ARE activity ratios. The R-carries (RC) phenotype group consisted of the QR and RR groups combined. Results: All lipid and lipoprotein concentrations were greater in the exercise group than in the control group. Regardless of phenotype, no significant differences were observed between the exercise and control groups in terms of serum PON1, SSPON1, or ARE activity associated with HDLs (p > 0.05), whereas PON1 activities in QQ-phenotyped women in the exercise group were significantly higher than those in the control group (p < 0.01), but not the RC group. A statistically significant interaction between PON1 phenotypes (QQ and RC groups) and exercise (exercise and control groups) on PON1 activity was found. Conclusion: These results showed that a regular aerobic exercise program can improve PON1 activity depending on PON1-192 phenotype, but not on lipid and lipoprotein levels, in middle-aged Turkish women. (C) 2016 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).Ege University Scientific Research Projects DirectorateEge University [2006-BESYO-004]This study was supported by the Ege University Scientific Research Projects Directorate (2006-BESYO-004). The authors would like to express thanks to Drs. Zisan Cetinkalp and Ekim Pekunlu at the Ege University School of Physical Education and Sports for their assistance in statistical analysis