Different plantar interface effects on dynamics of the lower limb

Area of Science:

• Biomechanics
• Orthopedics
• Sports Medicine

Background:

• Joint loading significantly impacts arthrosis development and progression.
• Footwear characteristics and gait patterns are key determinants of lower limb joint loads.
• Understanding these influences is crucial for preventing joint degeneration.

Purpose of the Study:

• To investigate the biomechanical effects of high-heeled shoes versus sneakers on lower limb joint moments.
• To quantify the differences in torques experienced at the ankle, knee, and hip during gait.

Main Methods:

• Utilized a three-dimensional gait analysis system in a controlled laboratory setting.
• Employed inverse dynamics to calculate joint torques (ankle, knee, hip).
• Compared gait data from five young women walking in 7 cm high-heeled shoes and sneakers.

Main Results:

• High-heeled shoes led to increased peak adduction moments at the knee and ankle.
• Flexion/extension moments at the hip were also elevated when wearing high heels.
• Overall, high heels imposed greater loads on the lower limb joints, especially the knee and hip.

Conclusions:

• Wearing high-heeled shoes significantly alters lower limb joint loading patterns during gait.
• The increased joint torques associated with high heels may contribute to accelerated arthrosis development.
• Footwear selection is a critical factor influencing the mechanical stress on lower extremity joints.