Type

Journal Article

Authors

Eamonn Delahunt
John Ryan
Brian Caulfield
Jay Hertel
Chris M Bleakley
Cailbhe Doherty

Subjects

Physiotherapy & Sport

Topics
laboratory test postural balance case control study kinematics star excursion balance test ankle joint personal sensing lower extremity biomechanics acute fractal dimension kinetics 3 dimensional

Laboratory Measures of Postural Control During the Star Excursion Balance Test After Acute First-Time Lateral Ankle Sprain. (2015)

Abstract   No researchers, to our knowledge, have investigated the immediate postinjury-movement strategies associated with acute first-time lateral ankle sprain (LAS) as quantified by center of pressure (COP) and kinematic analyses during performance of the Star Excursion Balance Test (SEBT).   To analyze the kinematic and COP patterns of a group with acute first-time LAS and an noninjured control group during performance of the SEBT.   Case-control study.   University biomechanics laboratory.   A total of 81 participants had acute first-time LAS (53 men, 28 women; age = 23.22 ± 4.93 years, height = 1.73 ± 0.09 m, mass = 75.72 ± 13.86 kg) and 19 noninjured participants (15 men, 4 women; age = 22.53 ± 1.68 years, height = 1.74 ± 0.08 m, mass = 71.55 ± 11.31 kg) served as controls. Participants performed the anterior (ANT), posterolateral (PL), and posteromedial (PM) reach directions of the SEBT.   We assessed 3-dimensional kinematics of the lower extremity joints and associated fractal dimension (FD) of the COP path during performance of the SEBT.   The LAS group had decreased normalized reach distances in the ANT, PL, and PM directions when compared with the control group on their injured (ANT: 58.16% ± 6.86% versus 64.86% ± 5.99%; PL: 85.64% ± 10.62% versus 101.14% ± 8.39%; PM: 94.89% ± 9.26% versus 107.29 ± 6.02%) and noninjured (ANT: 60.98% ± 6.74% versus 64.76% ± 5.02%; PL: 88.95% ± 11.45% versus 102.36% ± 8.53%; PM: 97.13% ± 8.76% versus 106.62% ± 5.78%) limbs (P < .01). This observation was associated with altered temporal sagittal-plane kinematic profiles throughout each reach attempt and at the point of maximum reach (P < .05). This result was associated with a reduced FD of the COP path for each reach direction only on the injured limb (P < .05).   Acute first-time LAS was associated with bilateral deficits in postural control, as evidenced by the bilateral reduction in angular displacement of the lower extremity joints and reduced reach distances and FD of the COP path on the injured limb during performance of the SEBT.
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Full list of authors on original publication

Eamonn Delahunt, John Ryan, Brian Caulfield, Jay Hertel, Chris M Bleakley, Cailbhe Doherty

Experts in our system

1
Eamonn Delahunt
University College Dublin
Total Publications: 114
 
2
John Ryan
University College Dublin
Total Publications: 54
 
3
Brian Caulfield
University College Dublin
Total Publications: 269
 
4
Jay Hertel
University College Dublin
Total Publications: 33
 
5
Chris M Bleakley
University College Dublin
Total Publications: 4
 
6
Cailbhe Doherty
University College Dublin
Total Publications: 44