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This research aims to investigate how different box heights during drop jumps affect ankle and knee joint stiffness.

The effect of box height on joint stiffness performance in drop jumping: a cross sectional study

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This research aims to investigate how different box heights during drop jumps affect ankle and knee joint stiffness.
Examined 32 athletes performing drop jumps from box heights of 26 cm, 35 cm, and 42 cm.
Measured joint stiffness of the ankle and knee during the jumps.
Used reflective markers and the Qualisys Track Manager system for motion capture and data analysis.
Knee joint stiffness was significantly higher than ankle joint stiffness across all jump heights.
Peak knee joint moments increased with higher drop heights, especially at 42 cm (p < 0.05).
Vertical stiffness increased significantly from Box 1 to Box 3, with no other significant differences observed.

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Cross-sectional study examines joint stiffness in athletes performing drop jumps from various heights, indicating key training insights.

Günay et al. (2026) studied this question.

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