Hatefi Mohamadreza, Biglari Mahdis, Babakhani Farideh
Department of Sport Injuries and Corrective Exercises, Faculty of Physical Education, Allameh Tabataba'i University, Tehran, Iran.
Faculty of Physical Education and Sport Science, Islamic Azad University of West Branch, Tehran, Iran.
BMC Sports Sci Med Rehabil. 2024 Dec 18;16(1):243. doi: 10.1186/s13102-024-01035-9.
Even though both landing stability and ankle dorsiflexion stiffness (ankle DR-stiffness) have been independently identified as risk factors associated with non-contact injuries, no study has specifically investigated the relationship between these two variables.
Twenty male recreational athletes volunteered to participate in this study. Their ankle DF-ROM based on the weight-bearing lunge test, and landing stability based on the dynamic postural stability index (DPSI) and time to stabilization (TTS) were evaluated during a single-leg landing (SLL).
There was no statistically significant difference among ankle DF-ROM, ankle DF-stiffness, DPSI, and TTS during the SLL task (p > .05). Although a moderately positive relationship was observed between ankle DF-ROM and ankle DF-stiffness (p = .177; r = .354 [95% CI, -.153 to .653]) and a moderately negative relationship between ankle DF-ROM and TTS (p = .163; r = -.375 [95% CI, -.598 to .098]), these were not statistically significant.
The findings indicate that ankle DF-stiffness as an independent variable, does not significantly affect landing stability based on the TTS and DPSI indexes. However, its interaction with other variables, such as sex, age, and the nature of the movement task, may influence landing stability. This study area warrants further research.
尽管着陆稳定性和踝关节背屈刚度（踝关节DR刚度）已被独立确定为与非接触性损伤相关的风险因素，但尚无研究专门调查这两个变量之间的关系。
20名男性休闲运动员自愿参与本研究。在单腿着陆（SLL）过程中，基于负重弓步试验评估他们的踝关节背屈活动度（DF-ROM），基于动态姿势稳定性指数（DPSI）和稳定时间（TTS）评估着陆稳定性。
在SLL任务期间，踝关节DF-ROM、踝关节DF刚度、DPSI和TTS之间无统计学显著差异（p>0.05）。尽管踝关节DF-ROM与踝关节DF刚度之间观察到中度正相关（p = 0.177；r = 0.354 [95%CI，-0.153至0.653]），踝关节DF-ROM与TTS之间观察到中度负相关（p = 0.163；r = -0.375 [95%CI，-0.598至0.098]），但这些均无统计学显著性。
研究结果表明，作为自变量的踝关节DF刚度，基于TTS和DPSI指数，不会显著影响着陆稳定性。然而，它与其他变量（如性别、年龄和运动任务性质）的相互作用可能会影响着陆稳定性。该研究领域值得进一步研究。
