Purpose. Examining and understanding the biomechanics of novice runners and experienced runners can further improve our knowledge within the field of running mechanics and running injuries. The purpose of this study was to classify the differences in lower limb biomechanics during a 3.3 m/s running task among both experienced runners and novice runners. Method. Twenty-four participants (12 experienced runners and 12 novice runners) ran at 3.3 m/s across a force plate; kinematics and kinetics data were collected by the Vicon motion system and Kistler force plate. Group comparisons were made using an independent samples -test to identify differences in the impact peak, loading rate, contact time, ankle, knee, and hip joint kinematics and kinetics during the stance phase. Results. No significant differences were observed between novice and experienced runners for both ankle and knee joint kinetics except that the ankle joint plantar flexion torque was significantly greater in the novice runners. However, the plantar flexion, dorsiflexion, range of motion (ROM), plantar flexion torque, and max angular velocity of ankle joint significantly increased in novice runners than inexperienced runners. Additionally, the flexion angle and range of motion of the hip joint were observed to be larger in the novice runners. Moreover, the maximum extension torque and the maximum extension power in the hip joint were significantly increased in the experienced runners. There were no significant differences in the first peak, contact time, and average vertical loading rate. Novice runners showed a larger vertical instantaneous loading rate than experienced runners. Conclusion. These preliminary findings indicate that novice runners are prone to running injuries in comparison to experienced runners. Novice runners showed larger kinematics and kinetic parameters in the joint of the ankle and hip. Novice runners should enhance muscle strength in the hip and choose scientific training methods.

中文翻译：

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新手跑步者的生物力学参数是否表现出更大的变化？

目的。检查和了解新手跑者和有经验的跑者的生物力学可以进一步提高我们在跑步力学和跑步损伤领域的知识。本研究的目的是对经验丰富的跑步者和新手跑步者在 3.3 m/s 跑步任务中下肢生物力学的差异进行分类。方法。24 名参与者（12 名经验丰富的跑步者和 12 名新手跑步者）以 3.3 m/s 的速度穿过测力台；运动学和动力学数据由 Vicon 运动系统和奇石乐测力台收集。使用独立样本进行组比较-测试以确定站立阶段期间冲击峰值、负载率、接触时间、踝关节、膝关节和髋关节运动学和动力学的差异。结果. 除了新手跑步者的踝关节跖屈扭矩明显更大外，新手和经验丰富的跑步者在踝关节和膝关节动力学方面没有观察到显着差异。然而，新手跑者的跖屈、背屈、活动范围（ROM）、跖屈力矩和踝关节最大角速度显着高于新手跑者。此外，在新手跑步者中观察到髋关节的屈曲角度和运动范围更大。此外，在有经验的跑步者中，髋关节的最大伸展扭矩和最大伸展功率显着增加。第一个峰值、接触时间和平均垂直加载速率没有显着差异。结论。这些初步调查结果表明，与经验丰富的跑步者相比，新手跑步者更容易受伤。新手跑者在踝关节和髋关节处表现出较大的运动学和动力学参数。新手跑者应增强臀部肌肉力量，选择科学的训练方法。