scholarly journals Individuals with mild-to-moderate hip osteoarthritis walk with lower hip joint contact forces despite higher levels of muscle co-contraction compared to healthy individuals

2020 ◽  
Vol 28 (7) ◽  
pp. 924-931 ◽  
Author(s):  
L.E. Diamond ◽  
H.X. Hoang ◽  
R.S. Barrett ◽  
A. Loureiro ◽  
M. Constantinou ◽  
...  
Keyword(s):  
Hip Joint ◽  
Hip Osteoarthritis ◽  
Contact Forces ◽  
Healthy Individuals ◽  
Joint Contact

Hip Joint Contact Forces During Running with a Transtibial Amputation

2020 ◽  
Author(s):  
Lauren Sepp ◽  
Brian S Baum ◽  
Erika Nelson-Wong ◽  
Anne Silverman
Keyword(s):  
Hip Joint ◽  
Hip Osteoarthritis ◽  
Gluteus Maximus ◽  
Gluteus Medius ◽  
Contact Forces ◽  
Musculoskeletal Models ◽  
Joint Health ◽  
Joint Contact ◽  
Reaction Forces

Abstract People with unilateral transtibial amputations (TTA) have greater risks of bilateral hip osteoarthritis, related to asymmetric biomechanics compared to people without TTA. Running is beneficial for physical health and is gaining popularity. However, people with TTA may not have access to running-specific prostheses (RSPs), which are designed for running, and may instead run using their daily-use prosthesis (DUP). Differences in joint loading may result from prosthesis choice, thus it is important to characterize changes in peak and impulsive hip joint contact loading during running. Six people with and without TTA ran at 3.5 m/s while ground reaction forces, kinematics, and electromyography were collected. People with TTA ran using their own RSP and repeated the protocol using their own DUP. Musculoskeletal models incorporating prosthesis type of each individual were used to quantify individual muscle forces and hip joint contact forces during running. People using RSPs had smaller bilateral peak hip joint contact forces compared to when wearing DUPs during stance and swing, and a smaller impulse over the entire gait cycle. Greater amputated leg peak hip joint contact forces for people wearing DUPs compared to RSPs occurred with greater forces from the ipsilateral gluteus maximus during stance. People with TTA also had greater bilateral peak hip joint contact forces during swing compared to people without TTA, which occurred with greater peak gluteus medius forces. Running with more compliant RSPs may be beneficial for long-term joint health by reducing peak and impulsive hip loading compared to DUPs.

scholarly journals Positive Correlation Between the Hip Adduction Moment Impulse During the Stance Phase and the Hip Joint Contact Force Impulse

2020 ◽  
Author(s):  
Takuma Inai ◽  
Tomoya Takabayashi ◽  
Mutsuaki Edama ◽  
Masayoshi Kubo
Keyword(s):  
Contact Force ◽  
Hip Joint ◽  
Stance Phase ◽  
Hip Osteoarthritis ◽  
Contact Forces ◽  
Joint Contact Force ◽  
Joint Contact ◽  
Hip Joint Contact Force ◽  
The Relationship ◽  
Second Peak

Abstract Background: Excessive mechanical loading, in the form of the joint contact force, has been reported to promote osteoarthritis in vitro and vivo in mice. However, it has also been reported that an excessive hip adduction moment impulse during the stance phase likely contributes to the progression of hip osteoarthritis. The relationship between the hip adduction moment impulse and hip joint contact force (impulse, and first and second peaks) during the stance phase is unclear. The objective of the present study was to clarify this relationship. Methods: A public dataset pertaining to the overground walking of 84 healthy adults, in which the participants walked at a self-selected speed, was considered. The data of three trials for each participant were analyzed. The relationship between the hip adduction moment and hip joint contact force, in terms of the impulse and first and second peaks, during the stance phase was evaluated using correlation coefficients.Results: The hip adduction moment impulse during the stance phase was positively correlated with the hip joint contact force impulse and not correlated with the first and second peak hip joint contact forces. Furthermore, the first and second peak hip adduction moments during the stance phase were positively correlated with the first and second peak hip joint contact forces, respectively. Conclusions: These findings indicate that the hip joint contact force impulse during the stance phase can be used as an index to determine the risk factors for the progression of hip osteoarthritis.

scholarly journals Quantifying Muscle Forces and Joint Loading During Hip Exercises Performed With and Without an Elastic Resistance Band

2021 ◽  
Vol 3 ◽  
Author(s):  
Callum Buehler ◽  
Willi Koller ◽  
Florentina De Comtes ◽  
Hans Kainz
Keyword(s):  
Hip Joint ◽  
Three Dimensional ◽  
Hip Osteoarthritis ◽  
Contact Forces ◽  
Muscle Forces ◽  
Joint Stability ◽  
Joint Loading ◽  
Expert Opinions ◽  
Elastic Resistance ◽  
Joint Contact

An increase in hip joint contact forces (HJCFs) is one of the main contributing mechanical causes of hip joint pathologies, such as hip osteoarthritis, and its progression. The strengthening of the surrounding muscles of the joint is a way to increase joint stability, which results in the reduction of HJCF. Most of the exercise recommendations are based on expert opinions instead of evidence-based facts. This study aimed to quantify muscle forces and joint loading during rehabilitative exercises using an elastic resistance band (ERB). Hip exercise movements of 16 healthy volunteers were recorded using a three-dimensional motion capture system and two force plates. All exercises were performed without and with an ERB and two execution velocities. Hip joint kinematics, kinetics, muscle forces, and HJCF were calculated based on the musculoskeletal simulations in OpenSim. Time-normalized waveforms of the different exercise modalities were compared with each other and with reference values found during walking. The results showed that training with an ERB increases both target muscle forces and HJCF. Furthermore, the ERB reduced the hip joint range of motion during the exercises. The type of ERB used (soft vs. stiff ERB) and the execution velocity of the exercise had a minor impact on the peak muscle forces and HJCF. The velocity of exercise execution, however, had an influence on the total required muscle force. Performing hip exercises without an ERB resulted in similar or lower peak HJCF and lower muscle forces than those found during walking. Adding an ERB during hip exercises increased the peak muscle and HJCF but the values remained below those found during walking. Our workflow and findings can be used in conjunction with future studies to support exercise design.

Subject-specific hip geometry affects predicted hip joint contact forces during gait

2008 ◽  
Vol 41 (6) ◽  
pp. 1243-1252 ◽  
Author(s):  
G. Lenaerts ◽  
F. De Groote ◽  
B. Demeulenaere ◽  
M. Mulier ◽  
G. Van der Perre ◽  
...  
Keyword(s):  
Hip Joint ◽  
Contact Forces ◽  
Hip Geometry ◽  
Subject Specific ◽  
Joint Contact

The Influence of Different Parameters of Remodeling Rule and Walking Speed on Resultant Density Distribution of the Proximal Femur

2007 ◽  
Author(s):  
Ali Marzban ◽  
Hamid Nayeb-Hashemi ◽  
Paul K. Canavan
Keyword(s):  
Bone Density ◽  
Density Distribution ◽  
Hip Joint ◽  
Proximal Femur ◽  
Gait Cycle ◽  
Initial Conditions ◽  
Contact Forces ◽  
Loading Conditions ◽  
Fast Speed ◽  
Joint Contact

The process of adaptive bone remodeling can be described mathematically and simulated with a self-optimizing finite element method (FEM) model. The aim of this study was to understand the effect of the basic remodeling rule on the bone density distribution of the proximal femur affected by the muscle loadings and the hip joint contact forces during normal gait (walking). The basic remodeling rule, which is an objective function for an optimization process relative to external load, was applied to predict the bone density. The purpose of the process is to obtain a constant value for the strain energy per unit bone mass, by adapting density modeling. The precise solution is dependent on the magnitude and direction of loads, loading rate, initial conditions and the parameters in the remodeling rule. In this study, we applied adaptive bone density remodeling under both static and dynamic loading conditions. In the static case, the forces at different phases in the gait cycle were statically applied as boundary conditions. The density distributions from these loadings were averaged to find the density distribution in the proximal femur. Three different initial densities were considered to investigate the effect of initial conditions. The influence of different parameters and functions on the density distribution and its convergence rate was also investigated. Furthermore, effect of changing of muscle loading and hip joint contact forces on resultant mass and density distribution of proximal femur was studied. In the dynamic approach, the forces of different phases of gait cycle were applied during different gait cycle’s times of 1.27 second (slow speed), 1.11 second (normal speed), 1.01 second (moderately fast speed), and 0.83 second (very fast speed). Although the results of bone density adaptations in both approaches were comparable with an example of an actual bone density distribution of the femoral head, neck and the proximal femoral shaft; the converged density distribution in the static approach was smoother and more realistic. It was shown that by applying more loading conditions through the gait cycle the converged density distribution is smoother. The resultant density distribution was more comparable with actual proximal femur compared to past studies.

Influence of altered gait patterns on the hip joint contact forces

2012 ◽  
Vol 17 (4) ◽  
pp. 352-359 ◽  
Author(s):  
Alessandra Carriero ◽  
Amy Zavatsky ◽  
Julie Stebbins ◽  
Tim Theologis ◽  
Gerlinde Lenaerts ◽  
...  
Keyword(s):  
Hip Joint ◽  
Contact Forces ◽  
Gait Patterns ◽  
Joint Contact

Altered Walking and Muscle Patterns Reduce Hip Contact Forces in Individuals With Symptomatic Cam Femoroacetabular Impingement

2018 ◽  
Vol 46 (11) ◽  
pp. 2615-2623 ◽  
Author(s):  
K.C. Geoffrey Ng ◽  
Giulia Mantovani ◽  
Luca Modenese ◽  
Paul E. Beaulé ◽  
Mario Lamontagne
Keyword(s):  
Femoroacetabular Impingement ◽  
Hip Joint ◽  
Hip Osteoarthritis ◽  
Contact Forces ◽  
Control Group ◽  
Protective Mechanism ◽  
Flexion Extension ◽  
Foot Strike ◽  
Psoas Major ◽  
Kinematics And Kinetics

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 resulted in reduced psoas major and iliacus muscle force and anterosuperior hip contact force estimations. Clinical Relevance: Limited hip mobility not only is attributed to bone-on-bone impingement, caused by cam morphology, but could be attributed to musculature as well. Not only would the psoas major and iliacus be able to protect the hip joint during flexion-extension, athletic conditioning could further strengthen core muscles for improved hip mobility and pelvic balance.

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