Ankle sprain is a common musculoskeletal injury, and recurrent ankle sprains often lead to ankle instability. This study aimed to examine whether a 6-week balance training on a wobble board (WB) combined with kinesio taping (KT) is effective in improving balance, postural stability, and ankle stability among female athletes with functional ankle instability (FAI). Twenty-four female athletes with FAI were randomly assigned to study (SG) or control groups (CG). SG attended a 6-week training protocol of combined balance training on the wobble board with KT applied to ankles during exercise. CG only went through a 6-week balance training procedure that was the same as the SG. Before and after the training program, balance and postural stability and the severity of ankle instability were assessed by single-leg Biodex Balance system and Cumberland Ankle Instability Tool (CAIT), respectively. The analysis revealed that the scores of balance and postural stability decreased after the 6-week training for CG (p = 0.002) and SG (p = 0.001), which indicates an improvement for these variables, and the score of CAIT increased, which means the severity of instability reduced (p = 0.001 for both groups). Significant between-group differences were found for balance and postural stability (t = 2.79, p = 0.011, g = −1.99) and the severity of instability (t = 2.082, p = 0.049, g = 1.36), favoring SG compared with CG. This study showed that the addition of KT to balance training is more effective than balance training alone in improving balance, postural stability, and severity of ankle instability in female athletes with FAI. Our findings could provide a preliminary reference for designing combined balance and KT programs for delivering health benefits to females with FAI.
The aim of this study was to compare an bodypump and resistance training on agility and vertical jump on male basketball players 16-18years. Therefore 36 teenage basketball players voluntarily chosen and randomly divided into three groups including: bodypump group (n=12,age 17 ± 0.5 year, height 179 ± 0.05 cm and a weight 69.26± 12.22 kg) and resistance group (n=12, age rangen 17± 0.6 years, range height 178 ± 0.09 cm and weight 68.55 ± 14.25 kg) and control group (n=12, age 17 ± 0.5 years, height 179 ± 0.06 cm, and the weight 70.06 ± 8 kg), respectively. Experimental groups were carried out of 8-weeks of typical training. Before and after 8 weeks, the subjects were tested. Vertical jump was measured by Sargent and agility was measured by T test. For analysis data one way ANCOVA and Bonferroni test were used. Measurements between groups indicated that the difference was significant, and Bonferroni test showed that between experimental and control groups difference was significant, but the difference between the experimental groups was not significant. It can be concluded, both methods had the same effect on vertical jump and agility. Therefore, in order for basketball players within 16-18 age group to improve them, they can utilize one of the two methods on their own choice. Coaches should be based on intensity, duration, discipline, control and supervise the performance, since bodypump method does not require expensive and complex devices, and can be performed with a number of dumbbell and barbell and control and supervise the performance due to the implementation of harmonic and simultaneous movements easier and the effectiveness of the conventional method was similar, for this reason can be suggested used in a large number of the club's athletes and the cost and time is important to them to be used.
Background and Aims: 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. Methods: 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. Results: 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. Conclusion: 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.
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