جستجوی مقالات مرتبط با کلیدواژه « soccer player » در نشریات گروه « پزشکی »

The aim of anterior cruciate ligament injury prevention programs is to correct or eliminate risk factors and ultimately reduce injury. The present study aimed to investigate the effect of neuromuscular exercises on knee and ankle joint proprioception in male soccer player students prone to anterior cruciate ligament injury.

In this quasi-experimental research, 24 male soccer players prone to anterior cruciate ligament injury at Khorazmi University of Tehran in 2018 were purposefully selected and randomly assigned to two experimental groups (n=12) and control groups (n=12). Two days before the commencement of neuromuscular training, knee and ankle proprioception assessment was performed on all subjects. The members of the experimental group participated in the neuromuscular training program for six weeks (3 sessions per week). Two days after finishing the training, all subjects were re-evaluated. Data were analyzed in SPSS software (version 22) using Shapiro-Wilk, covariance, and paired t-tests.

In this study, among 24 students prone to anterior cruciate ligament injury, 12 cases performed neuromuscular training for six weeks. The results demonstrated that knee proprioception (P=0.013) and ankle proprioception (in inversion movement p=0.032, in eversion movement P=0.047) in the experimental group improved significantly after six weeks of neuromuscular training compared to the control group (P≤0.05).

As evidenced by the obtained results, the use of neuromuscular training can be recommended to improve the proprioception of the knee and ankle joints and ultimately prevent anterior cruciate ligament injury.

Cardiac biomarkers play an important role in predicting heart damage. The aim of this study was to investigate The effect of aerobic maximal workload exercises on Galactin-3, plasma Creatine Cinase-MB and lactate dehydrogenase concentration of Iranian Soccer premier league players. The statistical population consisted of players of the Iranian Football Premier League in the season 1399-1400. 20 football players were selected as available samples. Evaluation of aerobic activity was incremental to maximal with the implementation of the Bruce protocol. Blood samples were taken before, immediately and 24 hours after the end of the protocol. To test the hypotheses and compare the dependent variables in different groups, analysis of variance in repeated measures and Bonferroni test were used to compare between blood sampling steps. Data analysis was performed using SPSS25 software. There was no significant difference in the amount of Galactin-3 between the pre-test and post-test stages and also between the post-test and 24 hours after the test. There was a significant difference in Creatine Kinase-MB and Lactate Dehydrogenase levels between pre-test and post-test stages as well as between pre-test and 24 hours after test. The merobic maximal workload exercises alters serum Galactin-3 levels in Premier League players, possibly due to inflammatory and anti-inflammatory effects during exercise and post-exercise recovery. Also, based on the findings of the present study, increasing aerobic exercise to the maximum caused a significant difference in levels of creatine kinase MB and lactate dehydrogenase in the post-test and 24 hours after the test.

Introduction: Cardiac biomarkers play an important role in predicting heart damage. The aim of this study was to investigate The effect of aerobic maximal workload exercises on Galactin-3, plasma Creatine Cinase-MB and lactate dehydrogenase concentration of Iranian Soccer premier league players. Methods: The statistical population consisted of players of the Iranian Football Premier League in the season 1399-1400. 20 football players were selected as available samples. Evaluation of aerobic activity was incremental to maximal with the implementation of the Bruce protocol. Blood samples were taken before, immediately and 24 hours after the end of the protocol. To test the hypotheses and compare the dependent variables in different groups, analysis of variance in repeated measures and Bonferroni test were used to compare between blood sampling steps. Data analysis was performed using SPSS25 software. Results: There was no significant difference in the amount of Galactin-3 between the pre-test and post-test stages and also between the post-test and 24 hours after the test. There was a significant difference in Creatine Kinase-MB and Lactate Dehydrogenase levels between pre-test and post-test stages as well as between pre-test and 24 hours after test. Conclusion: The merobic maximal workload exercises alters serum Galactin-3 levels in Premier League players, possibly due to inflammatory and anti-inflammatory effects during exercise and post-exercise recovery. Also, based on the findings of the present study, increasing aerobic exercise to the maximum caused a significant difference in levels of creatine kinase MB and lactate dehydrogenase in the post-test and 24 hours after the test.

Since fatigue in different regions of the lower extremities can effectively alter the movement pattern of this part of the body and cause joint-related kinematic changes that increase the risk of injury and mental fatigue, which may be a factor in reducing productivity and injury. Therefore, the study of kinematic changes during fatigue can have helpful results. This study aimed to investigate the effect of lower extremity fatigue on knee joint kinematics during landing in adult soccer players.

Ten adult male soccer players (Mean±SD = age: 20.7±1.05 years; Height: 178.9±4.17 cm; Weight: 71.55±8.04 kg) participated in this study. Subjects performed a pre-test, which included jumping and landing on a 40-cm box, and recording cameras of the valgus motion analyzer, flexion, and knee rotation. The Kingtools section of the plugin software attached to the Cortex software was used for segmentation and kinematic information. The lower extremity fatigue protocol consisted of 10 repetitions of single-leg squats up to 90 degrees of knee flexion, 20 vertical jumps with a single leg, and 1 repetition of step –going up and down a 31cm step. The Borg scale was used to measure fatigue. Before and after the fatigue protocol, a single-leg hop was used to determine the level of fatigue. After the fatigue protocol, a post-test was performed. Data were analyzed using the Shapiro-Wilk test for normality of the data, and paired t-test was used to compare mean in pre-test and post-test independent variables.

The paired t-test results for comparison of kinematic data showed that contact flexion had a significant difference from pre-test to post-test and other kinematic variables had no significant changes from pre-test to post-test. Statistical significance was considered at P≤0.05.

According to the findings of this study, it can be concluded that lower extremity fatigue in the present study partly caused kinematic changes in predicting ACL injury. Kinematic changes have included a decrease in Contact flexion, which is one of the predictors of ACL injury during landing.

The presents study seeks to study the impact of one treatment course of myo-facial release on soccer players with proximal tibio-fibular joint pain with a history of ACL surgery with hamstring graft.   The present semi-experimental study has benefited from the co-operation of 40 soccer players who had undergone Acl reconstruction with hamstring grafting, and were suffering from the posterior Lateral knee specially fibullar head. The patients underwent physical therapy treatment for a period of two weeks (for 6 sessions). The evaluation standards were the data obtained from the KOOS and IKDC, as well as the VAS Ruler, and the extension range of the knee. All questionnaires were filled out both before and after physical therapy treatment. All pain areas specially Biseps femoris and Lateral Gastrocnemius was treated with myo-fascial release  in one model by reasercher.  For evaluating the treatment impacts, the Questionnaire assessments were performed three weeks after the treatment. The data comparisons for the assessment of the variables were performed by the Wilcoxon Rank Test analyses. The results revealed that the mean VAS score pre- and post-treatment were 57.3 and 28.1, respectively; showing a significant difference with a p<0.001. The mean movement range score pre- and post-treatment were 43.4 and 13.1, respectively; (p<0.001), also revealing a significant difference. There were also significant differences found for the KOOS and IKDC questionnaire data, as well showing a significant difference. The fascia release maneuver, especially the Lateral hamstring muscle, and Lateral Gastrocnemius release are suitable tools for decreasing pain, and improving the movement range; as well as bettering lifestyle in such patients.

The purpose of this investigation was to study the effect of one session massage of the lower limb on flexibility, power and agility tests performance. For this purpose, 15 soccer players (Age 23.5±2.4 yrs, height 170.5±3.3 cm, weight 65.5±6.0 kg) selected randomly and participated in this study. The subjects performed the Sit and Reach, Toe-Touch, Vertical Jump and 4×9 tests in two stages before and after massage. They warm up themselves by 5-min jogging before testing. Massage was performed on lower limbs in both Petrissage and Tapotement methods for 15 min. Each test was performed three times and the best record was accepted. For determine the effect of massage on each tests performance, mean value in pre- and post-test was analyzed by paired t-test at p<0.05 level. Results showed a significant increase in flexibility tests records by 7.8±6.3% and 7.9±5.1% for Sit and Reach and Toe-Touch tests, respectively (p<0.05). But, the record of Vertical Jump and 4×9 tests have no significant change. Discussion& In general, if massage can improve muscle length without any adverse effects on power and agility muscle performance, so this hypothesis can be proposed that acute massage is a better technique for warming up before a power or agility event compare to other technique that reduce power and agility muscle performance.