Retrospective analysis of injury trends in recreational skiers and snowboarders in Erciyes Ski Centre

Purpose: The purpose of this study is to investigate the important differences in overall rates and frequency of injury cases and injury characteristics between the recreational alpine skiers and snowboarders in Erciyes Ski Centre. Methods: The data for this research was obtained from the Erciyes Ski Centre Injury Surveillance System. A total of 834 injury cases that ski patrols registered injury cases caused by recreational alpine skiing and snowboarding during the 2002 to 2017 winter seasons were respectively examined. The injury cases were grouped according to the skiing disciplines. All data were analysed using SPSS software. Results: Injury cases were 690 skiers (82.7%) and 144 snowboarders (17.3%). 397 (57.5%) male and 293 (42.5%) female were skiers and 91 (63.2%) male and 53 (36.8%) female were snowboarders. There was no statistically significant difference between the gender ratios in skiers and snowboarders (p > .05). Data analysis indicated that there were statistically significant differences in the ratios of lower and upper extremity injuries between skiers and snowboarders ( p < .05 ). Skiers suffered more lower extremity injuries while snowboarders suffered more upper extremity injuries ( p < .05 ). Contusion was the most common injuries type in both skiers and snowboarders ( p < .05) . Conclusions: The lower extremity injuries in skiers and the upper extremity injuries in snowboarders were more common with respect to body location of injuries. For both the recreational activities, contusion was the most common injury type

Interaction of ligament bundles and articular contacts for the simulation of passive knee flexion

The purpose of this study is to investigate the effects of anterior bundle of ACL (aACL), anterior portion of PCL (aPCL), anterior and deep portions of MCL (aMCL, dMCL) and the tibio-femoral articular contacts on to passive knee motion. A three-dimensional simplistic anatomical dynamic model, based on the literature was used as a reference. This reference model attaches the bundles of the ligaments on medial and the lateral spherical condyles of the femur and tibial plateau giving us a representation close enough to a normal natural tibio-femoral joint, but does not allow to study abnormalities of the knee kinematics due to the assumptions of the femur shape. The proposed three-dimensional dynamic tibio-femoral model, however includes the isometric fascicles, aACL, aPCL, aMCL, dMCL, and irregularly shaped medial-lateral contact surfaces. The approach taken in this model is capable of ligament and bone surface modifications that will enable us to analyze bone shape and ligament related abnormalities of knee kinematics

Aerobic Performance in Young Soccer Players

The purposes of this study were to determine the relationship between performance in the Yo-Yo intermittent recovery test level 1 (YIRT1), the Yo-Yo intermittent recovery test level 2 (YIRT2) and the Yo-Yo endurance test (continuous) (YET) with maximal oxygen uptake (VO2max ) and Wingate anaerobic performance (WaNT) test results in young soccer players (age 15.00 +/- 0.0 years, body height 176.3 +/- 4.2 cm and body mass 68.1 +/- 3.6 kg). An ergospirometry device was used during the treadmill test (TRT) to determine VO2max. At the end of the study, significant differences were found between the Yo-Yo tests and TRT in terms of HRmax (TRT = 195,92, YIRT1 = 197,83, YIRT2 = 198,5 YET = 198) (p > 0.05). While there were moderate correlations between VO2max and YIRT 1-2 performances (respectively, r = 0.56, r = 0.53), there was only a weak relationship between VO2max and YET performance (r = 0.43) (distance covered). There were also moderate significant negative correlations between performance in the YIRT2 and peak power measured in the WaNT (r = -0.55), although there were no significant correlations between performance in the three tests and average power. A moderate negative correlation was found between performance in the YIRT2 and Fatigue index (FI ) (r = -0,66). In conclusion, the YIRT2 may be a more suitable field test for determining both aerobic and anaerobic performance in soccer players

Aerobic Performance in Young Soccer Players

The purposes of this study were to determine the relationship between performance in the Yo-Yo intermittent recovery test level 1 (YIRT1), the Yo-Yo intermittent recovery test level 2 (YIRT2) and the Yo-Yo endurance test (continuous) (YET) with maximal oxygen uptake (VO2max ) and Wingate anaerobic performance (WaNT) test results in young soccer players (age 15.00 +/- 0.0 years, body height 176.3 +/- 4.2 cm and body mass 68.1 +/- 3.6 kg). An ergospirometry device was used during the treadmill test (TRT) to determine VO2max. At the end of the study, significant differences were found between the Yo-Yo tests and TRT in terms of HRmax (TRT = 195,92, YIRT1 = 197,83, YIRT2 = 198,5 YET = 198) (p > 0.05). While there were moderate correlations between VO2max and YIRT 1-2 performances (respectively, r = 0.56, r = 0.53), there was only a weak relationship between VO2max and YET performance (r = 0.43) (distance covered). There were also moderate significant negative correlations between performance in the YIRT2 and peak power measured in the WaNT (r = -0.55), although there were no significant correlations between performance in the three tests and average power. A moderate negative correlation was found between performance in the YIRT2 and Fatigue index (FI ) (r = -0,66). In conclusion, the YIRT2 may be a more suitable field test for determining both aerobic and anaerobic performance in soccer players

Suture anchor tenodesis in repair of distal Achilles tendon injuries

PubMed: 23412254Background: Distal Achilles tendon avulsions are in the form of either bony and nonbony avulsion of Achilles tendon from its calcaneal insertion. Methods: Four patients with distal Achilles tendon avulsions or ruptures which were treated with tendon to bone repair using suture anchors are presented here. Operated leg was immobilized in above-knee cast for 4 weeks while the patient walked non-weight-bearing. Then, cast was changed to below knee, and full weight-bearing was allowed. Patients underwent gait analysis minimum at first postoperative year. Results: Mean American Orthopedics Foot Ankle Society ankle/hindfoot score of patients at last visit was 88.75 (range 85-100), and Achilles tendon total rupture score was 77.75 (range 58-87). Mean passive dorsiflexion of injured ankles (14 ± 5) was lower than uninjured ankles (23 ± 9). All the kinematic parameters of gait analysis were comparable to the uninjured side. Maximum plantar flexion power of injured ankle was 1.40 W/kg, and this was significantly lower than the contralateral side value 2.38 W/kg; (P = 0.0143). Conclusions: There were no visually altered gait or problems in daily life. Suture anchor tenodesis technique of distal Achilles tendon avulsions was successful in achieving durable osteotendinous repairs. © 2012 Springer-Verlag France

Порівняння балансових навичок атлетів дзюдо з ослабленим зором і без порушення зору і атлетів в голбол / футзал

Background and Study Aim: In order to sustain the performance in sport, it is necessary to constantly struggle with the factors which disrupt balance, and maintain the desired balance. The purpose of the present study is to compare and demonstrate the effects of sight grade on static and dynamic balance, and fall risk parameters in visually impaired and non-impaired judo athletes and goalball/futsal players. Material and Methods: A total of 26 male athletes (13 Judo, 13 Goalball/Futsal) participated in the study voluntarily. The participants performed two balance tests as Overall Stability Test and Fall Risk Test with the eyes open and eyes closed. The parameters observed were static and dynamic overall stability, anterior-posterior, and medial-lateral index, and fall risk. Results: According to the findings, there were significant differences in all the parameters with the eyes open and eyes closed conditions in visually non-impaired athletes regardless of the sport branch, while visually impaired athletes showed no significant difference. However, more loss of balance was observed in all the parameters for visually impaired athletes. Conclusions: These findings show that visual system has a crucial role on balance, and athletes with visually impaired have more advanced vestibular system and proprioceptive senses to maintain their balance. It was also understood that visually non-impaired athletes tend to show more deteriorated balance level when their eyes were closed. Future studies could examine the vestibular and proprioceptive senses besides visual system to provide information about how balance is affected from other systems.Предпосылки и цель исследования. Чтобы поддерживать работоспособность в спорте, необходимо постоянно бороться с факторами, которые нарушают равновесие и поддерживают желаемый баланс. Цель настоящего исследования - сравнить и продемонстрировать влияние оценки зрения на статическую и динамическую сбалансированность, а также параметры риска падения у атлетов дзюдо с нарушением и без нарушения зрения и игроков в голбол/футзал. Материал и методы: Всего в исследовании участвовало 26 мужчин-спортсменов (13 дзюдо, 13 голабол / футзал). Участники провели два теста баланса: общий тест на устойчивость и тест на риск падения с открытыми глазами и закрытыми глазами. Наблюдаемыми параметрами были статическая и динамическая общая стабильность, передне-задний и медиально-боковой индекс и риск падения. Результаты. По имеющимся данным, во всех параметрах были обнаружены значительные различия с открытыми глазами и закрытыми глазами в условиях слабовидящих спортсменов независимо от спортивной отрасли, в то время как спортсмены с ослабленным зрением не показали существенной разницы. Однако во всех параметрах для спортсменов с ослабленным зрением наблюдалась большая потеря равновесия. Выводы. Эти данные показывают, что визуальная система играет решающую роль на балансе, а спортсмены по сравнению со слабовидящими имеют более развитую вестибулярную систему и проприоцептивные чувства для поддержания равновесия. Было также понятно, что спортсмены с ослабленным зрением, как правило, демонстрируют более ухудшенный баланс, когда их глаза закрыты. В будущих исследованиях можно было бы изучить вестибулярные и проприоцептивные ощущения, кроме визуальной системы, чтобы предоставить информацию о том, как баланс влияет на другие системы.Передумови та мета дослідження. Щоб підтримувати працездатність в спорті, необхідно постійно боротися з факторами, які порушують рівновагу і підтримують бажаний баланс. Мета цього дослідження - порівняти і продемонструвати вплив оцінки зору на статичну і динамічну збалансованість, а також параметри ризику падіння у атлетів дзюдо з порушенням і без порушення зору і гравців в голбол / футзал. Матеріал і методи: Всього в дослідженні брало участь 26 чоловіків-спортсменів (13 дзюдо, 13 голбол / футзал). Учасники провели два тести балансу: загальний тест на стійкість і тест на ризик падіння з відкритими очима і закритими очима. Спостерігаючими параметрами були статична і динамічна загальна стабільність, передньо-задній і медіально-бічний індекс і ризик падіння. Результати. За наявними даними, у всіх параметрах були виявлені значні відмінності з відкритими очима і закритими очима в умовах слабозорих спортсменів незалежно від спортивної галузі, в той час як спортсмени з ослабленим зором не показали суттєвої різниці. Однак у всіх параметрах для спортсменів з вадами зору спостерігалася велика втрата рівноваги. Висновки. Ці дані показують, що візуальна система відіграє вирішальну роль на балансі, а спортсмени в порівнянні зі слабким зором мають більш розвинену вестибулярную систему і пропріорецептивні почуття для підтримки рівноваги. Було також зрозуміло, що спортсмени з ослабленим зором, як правило, демонструють більш погіршений баланс, коли їх очі закриті. У майбутніх дослідженнях можна було б вивчити вестибулярні і пропріорецептивні відчуття, крім візуальної системи, щоб надати інформацію про те, як баланс впливає на інші системи

Arthroscopic synovectomy in the treatment of functional ankle instability: Outcomes and gait analysis

Background Natural consequence of repetitive ankle sprains is the chronic ankle instability. Objective of this study was to clarify the gait patterns of functional ankle instability (FAI) patients after arthroscopic synovectomy, but also assessment of postoperative recovery. Patients and methods Arthroscopic synovectomy was performed to 14 FAI patients with history of unilateral repetitive ankle sprains, pain, and subjective sensation of instability. At a mean 54 months of follow-up (27-84), clinical assessment was conducted with respect to pain, number of ankle sprains, and American Orthopaedics Foot and Ankle Society (AOFAS) scores. Gait analysis was conducted to determine the temporospatial, kinetic and kinematic parameters at the last follow-up. Results Mean AOFAS scores increased from 68 (range 55-75) to 89 (range 77-100) points (P0.01). Among temporospatial parameters, only double support time showed a significant difference (P<0.01). All patients were satisfied from the procedure and returned to their previous activity level. Conclusion Improved long-term clinical results and scores were obtained in our patient group when compared with the preoperative scores. Also, three-dimensional gait analysis showed that the involved ankles demonstrate similar gait patterns to the uninvolved ankles in patients with FAI. © Springer-Verlag France 2014