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Showing 3 results for Hopping

Dr Ali Yalfani, Mrs Farzaneh Gandomi,
Volume 14, Issue 11 (4-2016)
Abstract

Chronic ankle instability has defined as recurrent ankle sprain, so that 40% of injured athletes after acute injury despite of receiving of adequate rehabilitation, suffering from this instability. The purpose of this study is investigate of postural sway’s risk factors proportion in jump-landing and lateral hopping tasks, in prediction of chronic ankle sprain occurrence. 25 ankle sprain injured athletes and 25 healthy athletes participated in this descriptive-analytic study. Six variables (area of sways, path length and velocity of sways in jump-landing and lateral hoping tasks) were measured as predictor variables, and we used to Logistic Regression test for predicting. The results of study showed that path length and velocity of sways in jump-landing, area and path length of sways in lateral hopping had statistical significant proportion in classification of injured and healthy groups, and the model classified about 77% cases correctly. Therefore, athletes with ankle sprain history have less control of posture than healthy subjects in jump-landing and hopping tasks and have higher risk to getting recurrent ankle sprain. Also subjects with chronic ankle sprain have less control of posture in frontal plan


Faeze Nemati, Mostafa Zareei, Morteza Barzegar Bafrouei,
Volume 22, Issue 28 (12-2024)
Abstract

This study investigates the impact of an anterior cruciate ligament (ACL) injury prevention program on the performance of elite female kabaddi players. Given the debilitating consequences of ACL injuries, the primary aim is to evaluate the effects of an eight-week prevention program on improving the performance of these athletes. This quasi-experimental research was conducted on 27 elite female kabaddi players (aged 18 to 24 years), who were divided into intervention and control groups. The intervention group underwent an eight-week injury prevention training program. The tests included T-test, 20-meter run, Y-balance test, flexibility, hopping, and movement screening. Data analysis was performed using Levene's test and ANCOVA. The results of the ANCOVA indicated that the intervention group scored significantly better than the control group in the Y-balance test for both the right (p=0.002) and left (p=0.001) legs, single-leg hopping (right leg: p=0.004 and left leg: p=0.001), crossover hopping for the right leg (p=0.023), and the sit-and-reach flexibility test (p=0.003). However, no significant differences were observed in the speed, agility, triple hopping, and functional movement screening (FMS) tests. Results: The findings suggest that the eight-week PEP program has a significant impact on dynamic balance for both the right and left legs, hopping (single-leg and crossover hopping for the right leg), and hamstring and lower back flexibility in elite female kabaddi players. However, it did not have a significant effect on left leg hopping, speed, agility, or FMS scores.

Hamid Abbasi Bafghi, Mohammad Hasan Kordi Ashkezari, Abdolmajid Heratizadeh, Saeed Abedinzadeh,
Volume 23, Issue 29 (7-2025)
Abstract

Introduction and Objective: Ankle injuries are among the most common sports-related injuries, often caused by factors such as "direct contact with a player or the ground, tackles that push the ankle inward or outward, and during jumping and landing." Among these injuries, lateral ankle sprains are one of the most prevalent types, frequently associated with ankle instability. The aim of this study was to compare the effects of balance training and hopping exercises on the proprioception of athletes with functional ankle instability.
Methods: A total of 30 basketball, volleyball, and handball athletes with functional ankle instability, with a mean age of 24.58 ± 3.626 years and a body mass index (BMI) of 25.681 ± 2.126, were randomly assigned to two groups in a clinical trial. The first group (n=15) performed hopping exercises, while the second group (n=15) performed balance training. Proprioception of their ankle joints was assessed at baseline and after six weeks of training. Data analysis was conducted using paired t-tests and ANCOVA via SPSS version 20.
Results: Both balance training and hopping exercises significantly reduced the absolute error in reconstructing dorsiflexion and plantarflexion angles of the ankle (p<0.05). Additionally, the reduction in absolute error for these angles was significantly greater in the hopping group compared to the balance training group (p<0.05).
Conclusion: The findings indicate that both balance training and hopping exercises improve ankle joint proprioception in athletes with functional ankle instability. However, hopping exercises demonstrated greater effectiveness compared to balance training.


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