AI Article Synopsis
- This research investigates how different levels of longitudinal bending stiffness (LBS) in running shoes affect lower limb biomechanics when running uphill compared to level ground.
- Fifteen male amateur runners were tested wearing three types of shoes with varying LBS while data on kinematics and ground reaction forces were collected at a steady pace.
- The study found that higher LBS reduced knee joint motion and altered the work dynamics in the ankle and knee joints, suggesting that optimal shoe stiffness is important for both running efficiency and injury prevention.
Article Abstract
Background: During city running or marathon races, shifts in level ground and up-and-down slopes are regularly encountered, resulting in changes in lower limb biomechanics. The longitudinal bending stiffness of the running shoe affects the running performance.
Purpose: This research aimed to investigate the biomechanical changes in the lower limbs when transitioning from level ground to an uphill slope under different longitudinal bending stiffness (LBS) levels in running shoes.
Methods: Fifteen male amateur runners were recruited and tested while wearing three different LBS running shoes. The participants were asked to pass the force platform with their right foot at a speed of 3.3 m/s ± 0.2. Kinematics data and GRFs were collected synchronously. Each participant completed and recorded ten successful experiments per pair of shoes.
Results: The range of motion in the sagittal of the knee joint was reduced with the increase in the longitudinal bending stiffness. Positive work was increased in the sagittal plane of the ankle joint and reduced in the keen joint. The negative work of the knee joint increased in the sagittal plane. The positive work of the metatarsophalangeal joint in the sagittal plane increased.
Conclusion: Transitioning from running on a level surface to running uphill, while wearing running shoes with high LBS, could lead to improved efficiency in lower limb function. However, the higher LBS of running shoes increases the energy absorption of the knee joint, potentially increasing the risk of knee injuries. Thus, amateurs should choose running shoes with optimal stiffness when running.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11207841 | PMC |
| http://dx.doi.org/10.3390/s24123902 | DOI Listing |
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