Imperial College London
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DrLucaModenese

Faculty of Engineering, Department of Civil and Environmental Engineering

Honorary Research Fellow
 
 
 
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Contact

 

l.modenese Website

 
 
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Location

 

Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ng:2018:10.1177/0363546518787518,
author = {Ng, KCG and Mantovani, G and Modenese, L and Beaulé, PE and Lamontagne, M},
doi = {10.1177/0363546518787518},
journal = {American Journal of Sports Medicine},
pages = {2615--2623},
title = {Altered walking and muscle patterns reduce hip contact forces in individuals with symptomatic cam femoroacetabular impingement},
url = {http://dx.doi.org/10.1177/0363546518787518},
volume = {46},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Background:Cam-type femoroacetabular impingement (FAI) is a causative factor for hip pain and early hip osteoarthritis. Although cam FAI can alter hip joint biomechanics, it is unclear what role muscle forces play and how they affect the hip joint loading.Purpose/Hypothesis:The purpose was to examine the muscle contributions and hip contact forces in individuals with symptomatic cam FAI during level walking. Patients with symptomatic cam FAI would demonstrate different muscle and hip contact forces during gait.Study Design:Controlled laboratory study.Methods:Eighteen patients with symptomatic cam FAI were matched for age and body mass index with 18 control participants. Each participant’s walking kinematics and kinetics were recorded throughout a gait cycle (ipsilateral foot-strike to ipsilateral foot-off) by use of a motion capture system and force plates. Muscle and hip contact forces were subsequently computed by use of a musculoskeletal modeling program and static optimization methods.Results:The FAI group walked slower and with shorter steps, demonstrating reduced joint motions and moments during contralateral foot-strike, compared with the control group. The FAI group showed reduced psoas major (median, 1.1 newtons per bodyweight [N/BW]; interquartile range [IQR], 1.0-1.5 N/BW) and iliacus forces (median, 1.2 N/BW; IQR, 1.0-1.6 N/BW), during contralateral foot-strike, compared with the control group (median, 1.6 N/BW; IQR, 1.3-1.6 N/BW, P = .004; and median, 1.5 N/BW; IQR, 1.3-1.6 N/BW, P = .03, respectively), which resulted in lower hip contact forces in the anterior (P = .026), superior (P = .02), and medial directions (P = .038). The 3 vectors produced a resultant peak force at the anterosuperior aspect of the acetabulum for both groups, with the FAI group demonstrating a substantially lower magnitude.Conclusion:FAI participants altered their walking kinematics and kinetics, especially during contralateral foot-strike, as a protective mechanism, which
AU  - Ng,KCG
AU  - Mantovani,G
AU  - Modenese,L
AU  - Beaulé,PE
AU  - Lamontagne,M
DO  - 10.1177/0363546518787518
EP  - 2623
PY  - 2018///
SN  - 0363-5465
SP  - 2615
TI  - Altered walking and muscle patterns reduce hip contact forces in individuals with symptomatic cam femoroacetabular impingement
T2  - American Journal of Sports Medicine
UR  - http://dx.doi.org/10.1177/0363546518787518
UR  - http://hdl.handle.net/10044/1/62948
VL  - 46
ER  -
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