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

POSTERIOR TIBIAL SLOPE AS A RISK FACTOR FOR ANTERIOR CRUCIATE LIGAMENT RUPTURE IN SOCCER PLAYERS

Anterior cruciate ligament (ACL) is the primary stabilizer of the knee. An impairment of any of the dynamic or static stability providing factors can lead to overload on the other factors and ultimately to deterioration of knee stability. This can result in anterior tibial translation and rupture of the ACL. The purpose of this study was to examine the influence of tibial slope on ACL injury risk on soccer players. A total of 64 elite soccer players and 45 sedentary controls were included in this longitudinal and controlled study. The angle between the tibial mid-diaphysis line and the line between the anterior and posterior edges of the medial tibial plateau was measured as the tibial slope via lateral radiographs. Individual player exposure, and injuries sustained by the participants were prospectively recorded. Eleven ACL injuries were documented during the study period. Tibial slope was not different between soccer players and sedentary controls. Tibial slope in the dominant and non-dominant legs was greater for the injured players compared to the uninjured players. The difference reached a significant level only for the dominant legs (p 0.05), a higher tibial slope was observed in dominant legs of injured players (p < 0.05). Higher tibial slope on injured soccer players compared to the uninjured ones supports the idea that the tibial slope degree might be an important risk factor for ACL injury

Posterior tibial slope as a risk factor for anterior cruciate ligament rupture in soccer players

WOS: 000297264400025PubMed ID: 24149571Anterior cruciate ligament (ACL) is the primary stabilizer of the knee. An impairment of any of the dynamic or static stability providing factors can lead to overload on the other factors and ultimately to deterioration of knee stability. This can result in anterior tibial translation and rupture of the ACL. The purpose of this study was to examine the influence of tibial slope on ACL injury risk on soccer players. A total of 64 elite soccer players and 45 sedentary controls were included in this longitudinal and controlled study. The angle between the tibial mid-diaphysis line and the line between the anterior and posterior edges of the medial tibial plateau was measured as the tibial slope via lateral radiographs. Individual player exposure, and injuries sustained by the participants were prospectively recorded. Eleven ACL injuries were documented during the study period. Tibial slope was not different between soccer players and sedentary controls. Tibial slope in the dominant and non-dominant legs was greater for the injured players compared to the uninjured players. The difference reached a significant level only for the dominant legs (p 0.05), a higher tibial slope was observed in dominant legs of injured players (p < 0.05). Higher tibial slope on injured soccer players compared to the uninjured ones supports the idea that the tibial slope degree might be an important risk factor for ACL injury

Inversion/eversion strength dysbalance in patients with medial tibial stress syndrome

WOS: 000297264400021PubMed ID: 24149567The main purpose of the study is to investigate the inversion/ eversion muscle strength balance of the ankle in patients with medial tibial stress syndrome (MTSS). A dysbalance of these muscles may play a role in the pathophysiology of MTSS. Another aim is to measure the medial longitudinal arch and navicular drop in patients with MTSS. A total of 11 patients diagnosed with MTSS in the outpatient clinic of Ege University School of Medicine Sports Medicine Department were enrolled in this study. The control group consisted of 11 regularly exercising individuals. The mean age of the patient group and the control group was 21.0 +/- 1.9 years (18-23 years) and 23.2 +/- 2.9 years (18-27 years), respectively. A detailed exercise questionnaire was administered to all subjects. Isokinetic muscle strength testing was performed at 30 degrees/sec and 120 degrees/sec to assess invertor and evertor muscle strength of the ankle. Photographs of the weight bearing and non-weight bearing foot were taken to measure the medial longitudinal arch deformation and the navicular drop. At 30 degrees/sec, the average eversion concentric strength was significantly higher in the patient group, and the inversion/eversion strength ratio was significantly higher in the control group (p 0.05). MTSS may occur without an increase of pronation indicators like medial longitudinal arch deformation or navicular drop. In such cases, one of the predisposing factors may be the strength dysbalance of the invertor/evertor muscles in favour of the evertor muscles. This observation may be of additional value in the prevention and therapy of MTSS