Journal Article


E Delahunt
J Ryan
B Caulfield
J Hertel
C Bleakley
C Doherty


Physiotherapy & Sport

control strategies leg single injury ankle lower extremity acute three dimensional

Single-leg drop landing motor control strategies following acute ankle sprain injury. (2014)

Abstract No research currently exists investigating the effect of acute injury on single-limb landing strategies. The aim of the current study was to analyze the coordination strategies of participants in the acute phase of lateral ankle sprain (LAS) injury. Thirty-seven participants with acute, first-time LAS and 19 uninjured participants completed a single-leg drop landing task on both limbs. Three-dimensional kinematic (angular displacement) and sagittal plane kinetic (moment-of-force) data were acquired for the joints of the lower extremity from 200 ms pre-initial contact (IC) to 200 ms post-IC. The peak magnitude of the vertical component of the ground reaction force (GRF) was also computed. Injured participants displayed a bilateral increase in hip flexion, with altered transverse plane kinematic profiles at the knee and ankle for both limbs (P < 0.05). This coincided with a reduction in the net-supporting flexor moment of the lower extremity (P < 0.05) and magnitude of the peak vertical GRF for the injured limb (21.82 ± 2.44 N/kg vs 24.09 ± 2.77 N/kg; P = 0.013) in injured participants compared to control participants. These results demonstrate that compensatory movement strategies are utilized by participants with acute LAS to successfully reduce the impact forces of landing.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

E Delahunt, J Ryan, B Caulfield, J Hertel, C Bleakley, C Doherty

Experts in our system

Eamonn Delahunt
University College Dublin
Total Publications: 117
John Ryan
University College Dublin
Total Publications: 58
Brian Caulfield
University College Dublin
Total Publications: 331
Jay Hertel
University College Dublin
Total Publications: 34
Chris Bleakley
University College Dublin
Total Publications: 105
Cailbhe Doherty
University College Dublin
Total Publications: 45