Stress Distribution at Hip Joint During Level Walking

1993 ◽  
pp. 11-20 ◽  
Author(s):  
Kazuhiko Sakamoto ◽  
Yoshinobu Hara ◽  
Akira Shimazu ◽  
Kenji Hirohashi
Keyword(s):  
Stress Distribution ◽  
Hip Joint ◽  
Level Walking

scholarly journals Differences in Hip Joint Biomechanics and Muscle Activation in Individuals With Femoroacetabular Impingement Compared With Healthy, Asymptomatic Individuals: Is Level-Ground Gait Analysis Enough?

2018 ◽  
Vol 6 (5) ◽  
pp. 232596711876982 ◽  
Author(s):  
Derek J. Rutherford ◽  
Janice Moreside ◽  
Ivan Wong
Keyword(s):  
Femoroacetabular Impingement ◽  
Hip Joint ◽  
Muscle Activation ◽  
Gluteus Maximus ◽  
Knee Extensors ◽  
Joint Function ◽  
Asymptomatic Group ◽  
Level Walking ◽  
Hip Function ◽  
Asymptomatic Individuals

Background: Femoroacetabular impingement (FAI) is a recognized cause of hip and groin pain and a significant factor in hip joint function during sport. Objective tests for understanding hip function are lacking in this population. Purpose: To determine whether biomechanical and electromyographic features of hip function during level-ground walking differ between a group diagnosed with FAI and those with no symptoms of FAI. Study Design: Controlled laboratory study. Methods: A total of 20 asymptomatic individuals and 20 individuals with FAI walked on a dual-belt instrumented treadmill at self-selected walking velocities. Sagittal and frontal plane joint motions, moments, and muscle activation for the gluteus medius, gluteus maximus, rectus femoris, and medial and lateral hamstrings were analyzed. Discrete measures were extracted from each biomechanical waveform, and principal component analysis was used to determine hip joint muscle activation and hip adduction moment patterns. Statistical significance was determined by use of Student t tests with Bonferroni adjustments for multiple comparisons (α = .05). Results: Individuals with FAI walked more slowly ( P = .015) and had lower self-reported function ( P < .001). No differences in muscle strength were found between the symptomatic and contralateral legs in the FAI group ( P > .017), but those with FAI had lower strength in the knee extensors and flexors and the hip extensors, flexors, and adductors compared with the asymptomatic group ( P < .017). Individuals with unilateral symptomatic FAI walked with similar biomechanical and hip muscle electromyographic results bilaterally. The only differences found were a greater amplitude of gluteus maximus activation in the FAI symptomatic leg compared with the asymptomatic group and greater medial hamstring activation than lateral hamstring activation in the FAI group in both limbs compared with the asymptomatic group. Conclusion: Individuals with FAI were generally deconditioned and reported significantly more functional limitations. No biomechanical differences existed between groups during level walking, yet hamstring and gluteus maximus activation differed when the symptomatic group was compared with the asymptomatic group. Clinical Relevance: The field lacks objective testing of hip joint function to understand implications of FAI for dynamic movements, particularly with applications to biomechanics and electromyography. Level walking was of limited value for understanding FAI hip function, and the development of a more challenging gait assessment is warranted.

scholarly journals The Influence of Pelvic Tilt on Stress Distribution in the Acetabulum: Finite Element Analysis

2020 ◽  
Author(s):  
Kazuhiro Hasegawa ◽  
Tamon Kabata ◽  
Yoshitomo Kajino ◽  
Daisuke Inoue ◽  
Jiro Sakamoto ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Hip Joint ◽  
Tilt Angle ◽  
Pelvic Tilt ◽  
Biomechanical Analysis ◽  
Von Mises Stress ◽  
Element Analysis ◽  
Von Mises

Abstract Background Finite element analysis (FEA) has been previously applied for the biomechanical analysis of acetabular dysplasia and osteotomy. However, until now, there have been little reports on the use of FEA to evaluate the effects of pelvic tilt on stress distribution in the acetabulum. Methods We used the Mechanical Finder Ver. 7.0 (RCCM, Inc., Japan) to construct finite element models based on 3D-CT data of patients, and designed dysplasia, borderline, and normal pelvic models. For analysis, body weight was placed on the sacrum and the load of the flexor muscles of the hip joint was placed on the ilium. The pelvic tilt was based on the anterior pelvic plane, and the pelvic tilt angles were -20°, 0°, and 20°. The load of the flexor muscle of the hip joint was calculated using the moment arm equation.Results All three models showed the highest values of von Mises stress in the -20° pelvic tilt angle, and the lowest in the 20° angle. Stress distribution concentrated in the load-bearing area. The maximum values of von Mises stress in the borderline at pelvic tilt angles of -20° was 3.5Mpa, and in the dysplasia at pelvic tilt angles of 0° was 3.1Mpa. Conclusions The pelvic tilt angle of -20° of the borderline model showed equal maximum values of von Mises stress than the dysplasia model of pelvic tilt angle of 0°, indicating that pelvic retroversion of -20° in borderline is a risk factor for osteoarthritis of the hip joints, similar to dysplasia.

530 Stress Distribution Analysis of Hip Joint Using FEM and CT Osteoabsorptiometry

2009 ◽  
Vol 2008.21 (0) ◽  
pp. 433-434
Author(s):  
Masahiro INOUE ◽  
Kazuhiro FUJISAKI ◽  
Naomi OIZUMI ◽  
Hiroki NAKATSUCHI ◽  
Ryutaro HIMENO ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Hip Joint ◽  
Distribution Analysis

Influence of Artificial Hip Joint Design on Stress Distribution in the Femur

2003 ◽  
Vol 2003.7 (0) ◽  
pp. 145-146
Author(s):  
Takako UCHIDA ◽  
Akiko MORI ◽  
Koichi KURAMOTO ◽  
Noriyuki NAGAYAMA ◽  
Takaaki SARAI
Keyword(s):  
Stress Distribution ◽  
Hip Joint ◽  
Joint Design ◽  
Artificial Hip Joint ◽  
Artificial Hip

Effect of sub-optimal neuromotor control on the hip joint load during level walking

2011 ◽  
Vol 44 (9) ◽  
pp. 1716-1721 ◽  
Author(s):  
Saulo Martelli ◽  
Fulvia Taddei ◽  
Angelo Cappello ◽  
Serge van Sint Jan ◽  
Alberto Leardini ◽  
...  
Keyword(s):  
Hip Joint ◽  
Neuromotor Control ◽  
Level Walking ◽  
Joint Load

The influence of contact hip joint stress distribution on polyethylene cup wear

2006 ◽  
Vol 39 ◽  
pp. S530
Author(s):  
V. Kralj-Iglič ◽  
M. Daniel ◽  
R. Košak ◽  
V. Antolič ◽  
A. Iglič
Keyword(s):  
Stress Distribution ◽  
Hip Joint ◽  
Joint Stress

Optimisation of the stress distribution in ceramic hip joint balls by implementation of biological growth

2006 ◽  
Vol 39 ◽  
pp. S67-S68
Author(s):  
Ch. Affolter ◽  
B. Weisse ◽  
A. Stutz ◽  
S. Köbel
Keyword(s):  
Stress Distribution ◽  
Hip Joint ◽  
Biological Growth

Dynamic Analysis of the Resultant Force Acting on the Hip Joint During Level Walking

2005 ◽  
Vol 29 (5) ◽  
pp. 387-392 ◽  
Author(s):  
Naoki Hashimoto ◽  
Masao Ando ◽  
Takafumi Yayama ◽  
Kenzo Uchida ◽  
Shigeru Kobayashi ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Hip Joint ◽  
Resultant Force ◽  
Level Walking

Relation between subject-specific hip joint loading, stress distribution in the proximal femur and bone mineral density changes after total hip replacement

2008 ◽  
Vol 41 (16) ◽  
pp. 3405-3413 ◽  
Author(s):  
Ilse Jonkers ◽  
Nicolas Sauwen ◽  
Gerlinde Lenaerts ◽  
Michiel Mulier ◽  
Georges Van der Perre ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Stress Distribution ◽  
Total Hip Replacement ◽  
Bone Mineral ◽  
Hip Joint ◽  
Proximal Femur ◽  
Hip Replacement ◽  
Mineral Density ◽  
Total Hip ◽  
Subject Specific
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