The Relationship between Self-estimated Value and Landing Error in Single Leg Hop for Distance: A Study in Healthy Adults

Abstract

The purpose of this study was to investigate the relationship between self-estimated values and landing errors in the single leg hop for distance (SHD). Self-estimated values and hop distance were measured for 63 healthy adults. The participants were classified into two groups: those who were able to achieve a stable landing (group A), and those who were not (group B). In addition to the self-estimated values, knee flexion and extension muscle strength, age, height, and weight were included in the analysis as factors that may potentially affect postural stability during landing. Statistical analyses were performed using the Mann-Whitney U test, independent ttest, logistic regression analysis, and ROC analysis. The significance level was set at 5%. The results showed that the mean self-estimated value (standardized by height) was significantly higher for group B (102.8±19.0) compared to the corresponding value for group A (74.4±16.8). Of the potentially influential factors, the only one identified as a predictor of landing stability was the self-estimated value, with a cut-off value of 87.1%. If the SHD selfestimated value exceeds 87.1%, a landing error may occur.