Jump-Landing Mechanics Assessment Using Landing Error Scoring System in Athletes with and without Patellofemoral Pain:

Abstract

Abstract Purpose: This study was a cross-sectional study that aimed to compare the total LESS scores of individuals with PFP with healthy controls and assess the association of pain, function, and psychological factors with LESS score. Methods: Twenty-seven male athletes with PFP completed a standardized jump-landing task. They were compared with a matched, healthy group. Also, participants completed four questionnaires involving the visual analog scale (VAS), Anterior knee pain scale (AKPS), fear of motion (TAMPA), beck anxiety and depression inventory scale (BAI, BDI). Results: PFP group had a higher total LESS score than the control group significantly. They had errors when landing with lateral trunk flexion and less knee flexion in the initial contact. Our results showed a significantly strong correlation between VAS, AKPS, and TAMPA with a final score LESS. Also, a low to moderate significant correlation obtained between BAI, BDI and final score LESS. Conclusions: The LESS is a useful clinical test for evaluating landing errors in people with PFP. Greater kinesiophobia, pain, poorer self-reported function and psychological factors was correlated with a total LESS score.