" Comparing Lower Limb Kinematics in Shod and Barefoot Conditions during Vertical Jump and Landing: Review Study”

Poster Presentation
Paper ID : 1880-SSRC
1Ph.D. student, Tomsk State University, Russia
2استادیار بهداشت و طب ورزشی، دانشگاه تهران
Jumping and landing are crucial movements in various sports, significantly influencing performance and injury occurrence. Footwear, a key external factor, has been extensively studied for its impact on these movements. This review focuses on summarizing studies comparing lower extremity biomechanics during vertical jumps and landing in barefoot and shod conditions.

The interest in barefoot running emerged following exceptional performances in the 1960s and 1990s. While extensive research has compared barefoot and shod running, the overview of studies on vertical jump and landing conditions remains lacking.

This review aims to summarize studies examining lower limb kinematics during vertical jump and landing in shod and barefoot conditions.

Systematic searches were conducted in PubMed, Scopus, Web of Science, and PROQUEST Central until February 2024. Inclusion criteria comprised observational and randomized controlled studies investigating lower limb kinematic variables in shod and barefoot conditions during various vertical jumps and landings in healthy individuals. Twenty-seven studies met these criteria.

Less knee valgus, greater peak knee flexion, increased ankle plantarflexion angle at initial contact, and enhanced ankle range of motion were observed in shod conditions. However, most studies indicated higher jumping height in barefoot than in shod conditions.

While many studies support reduced injury risk in shod conditions, certain factors suggest potential benefits in barefoot conditions. The findings suggest a nuanced balance between injury prevention and performance enhancement when comparing kinematic variables in shod and barefoot conditions during vertical jumps and landings. Wearing shoes appears to reduce the risk of injury, presenting benefits such as decreased knee valgus. However, for performance outcomes like jump height, barefoot conditions show superiority. This duality underscores the need for a context-dependent approach in selecting footwear, recognizing the specific demands and goals of athletes. Striking a balance between safety and performance is crucial, and tailoring footwear choices to the activity at hand is essential for optimizing outcomes in vertical jumping and landing scenarios.