Abstract
Objectives. (1) To systematically review peak vertical ground reaction force (PvGRF) during two-leg drop landing from specific drop height (DH), (2) to construct a mathematical model describing correlations between PvGRF and DH, and (3) to analyze the effects of some factors on the pooled PvGRF regardless of DH. Methods. A computerized bibliographical search was conducted to extract PvGRF data on a single foot when participants landed with both feet from various DHs. An innovative mathematical model was constructed to analyze effects of gender, landing type, shoes, ankle stabilizers, surface stiffness and sample frequency on PvGRF based on the pooled data. Results. Pooled PvGRF and DH data of 26 articles showed that the square root function fits their relationship well. An experimental validation was also done on the regression equation for the medicum frequency. The PvGRF was not significantly affected by surface stiffness, but was significantly higher in men than women, the platform than suspended landing, the barefoot than shod condition, and ankle stabilizer than control condition, and higher than lower frequencies. Conclusions. The PvGRF and root DH showed a linear relationship. The mathematical modeling method with systematic review is helpful to analyze the influence factors during landing movement without considering DH.
Highlights
Landing movement has been thoroughly researched in sports biomechanics, because it is very important in gymnastics [1, 2], parachuting [3, 4], Parkour [5], volleyball [6, 7], basketball [8, 9], soccer [10], Australian football [11], and netball [12, 13]
(1) To systematically review peak vertical ground reaction force (PvGRF) during two-leg drop landing from specific drop height (DH), (2) to construct a mathematical model describing correlations between PvGRF and DH, and (3) to analyze the effects of some factors on the pooled PvGRF regardless of DH
An innovative mathematical model was constructed to analyze effects of gender, landing type, shoes, ankle stabilizers, surface stiffness and sample frequency on PvGRF based on the pooled data
Summary
Landing movement has been thoroughly researched in sports biomechanics, because it is very important in gymnastics [1, 2], parachuting [3, 4], Parkour [5], volleyball [6, 7], basketball [8, 9], soccer [10], Australian football [11], and netball [12, 13] In these studies, the landing risk or performance was valuated with various kinetic, kinematic, and electromyographic parameters, among which the ground reaction forces (GRF) is very important and fundamental [13, 14]. It is necessary to comprehensively integrate and analyze the published PvGRF data during drop landing
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