Background Tibial stress fracture (TSF) is a common injury in basketball players. This condition has been associated with high tibial shock and impact loading, which can be affected by running speed, footwear condition, and footstrike pattern. However, these relationships were established in runners but not in basketball players, with very little research done on impact loading and speed. Hence, this study compared tibial shock, impact loading, and foot strike pattern in basketball players running at different speeds with different shoe cushioning properties/performances. Methods Eighteen male collegiate basketball players performed straight running trials with different shoe cushioning (regular-, better-, and best-cushioning) and running speed conditions (3.0 m/s vs. 6.0 m/s) on a flat instrumented runway. Tri-axial accelerometer, force plate and motion capture system were used to determine tibial accelerations, vertical ground reaction forces and footstrike patterns in each condition, respectively. Comfort perception was indicated on a 150 mm Visual Analogue Scale. A 2 (speed) × 3 (footwear) repeated measures ANOVA was used to examine the main effects of shoe cushioning and running speeds. Results Greater tibial shock (P < 0.001; η2 = 0.80) and impact loading (P 0.14; η2 = 0.13). Discussion There may be an optimal band of shoe cushioning for better protection against TSF. These findings may provide insights to formulate rehabilitation protocols for basketball players who are recovering from TSF.
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机译：背景技术胫骨应力骨折（TSF）是篮球运动员的常见伤害。这种情况与高胫骨冲击和冲击载荷有关，这可能受到运行速度，鞋类状况和脚踏板的影响。然而，这些关系是以跑步者建立的，而不是在篮球运动员中，对冲击载荷和速度进行了很少的研究。因此，本研究比较以不同速度运行的篮球运动员中的胫骨冲击，冲击载荷和脚部打击模式，其具有不同的鞋垫性能/性能。方法十八名男院校篮球运动员用不同的鞋垫（常规，更好，最佳和最佳缓冲）和运行速度条件（3.0 m / s与6.0 m / s）进行直线运行试验。三轴加速度计，力板和运动捕获系统分别用于确定每个条件下的胫骨加速度，垂直接地反作用力和脚踏板图案。在150 mm视觉模拟规模上表明了舒适感。 A 2（速度）×3（鞋类）反复测量ANOVA用于检查鞋垫和运行速度的主要效果。导致胫骨休克更大（P <0.001;η2= 0.80）和冲击载荷（p 0.14;η2= 0.13）。讨论可能存在最佳的鞋垫带，以便更好地保护TSF。这些调查结果可以提供从TSF恢复的篮球运动员制定康复协议的见解。
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