scholarly journals It's not all about the knee adduction moment: the role of the knee flexion moment in medial knee joint loading

2015 ◽  
Vol 23 (7) ◽  
pp. 1038-1040 ◽  
Author(s):  
M.W. Creaby
Keyword(s):  
Knee Joint ◽  
Knee Flexion ◽  
Knee Adduction Moment ◽  
Joint Loading ◽  
Medial Knee ◽  
Flexion Moment ◽  
Knee Joint Loading

scholarly journals Effect of a Home Program of Hip Abductor Exercises on Knee Joint Loading, Strength, Function, and Pain in People With Knee Osteoarthritis: A Clinical Trial

2010 ◽  
Vol 90 (6) ◽  
pp. 895-904 ◽  
Author(s):  
Elizabeth A. Sled ◽  
Latif Khoja ◽  
Kevin J. Deluzio ◽  
Sandra J. Olney ◽  
Elsie G. Culham
Keyword(s):  
Knee Joint ◽  
Functional Performance ◽  
Knee Adduction Moment ◽  
Control Group ◽  
Joint Loading ◽  
Medial Knee ◽  
Knee Oa ◽  
Sit To Stand ◽  
Hip Abductor ◽  
Knee Joint Loading

BackgroundHip abductor muscle weakness may result in impaired frontal-plane pelvic control during gait, leading to greater medial compartment loading in people with knee osteoarthritis (OA).ObjectiveThis study investigated the effect of an 8-week home strengthening program for the hip abductor muscles on knee joint loading (measured by the external knee adduction moment during gait), strength (force-generating capacity), and function and pain in individuals with medial knee OA.DesignThe study design was a nonequivalent, pretest-posttest, control group design.SettingTesting was conducted in a motor performance laboratory.PatientsAn a priori sample size calculation was performed. Forty participants with knee OA were matched for age and sex with a control group of participants without knee OA.InterventionParticipants with knee OA completed a home hip abductor strengthening program.MeasurementsThree-dimensional gait analysis was performed to obtain peak knee adduction moments in the first 50% of the stance phase. Isokinetic concentric strength of the hip abductor muscles was measured using an isokinetic dynamometer. The Five-Times-Sit-to-Stand Test was used to evaluate functional performance. Knee pain was assessed with the Western Ontario and McMaster Universities Osteoarthritis Index questionnaire.ResultsFollowing the intervention, the OA group demonstrated significant improvement in hip abductor strength, but not in the knee adduction moment. Functional performance on the sit-to-stand test improved in the OA group compared with the control group. The OA group reported decreased knee pain after the intervention.LimitationsGait strategies that may have affected the knee adduction moment, including lateral trunk lean, were not evaluated in this study.ConclusionsHip abductor strengthening did not reduce knee joint loading but did improve function and reduce pain in a group with medial knee OA.

Relationship between pain and medial knee joint loading in mild radiographic knee osteoarthritis

2007 ◽  
Vol 57 (7) ◽  
pp. 1254-1260 ◽  
Author(s):  
Laura E. Thorp ◽  
Dale R. Sumner ◽  
Markus A. Wimmer ◽  
Joel A. Block
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Joint Loading ◽  
Medial Knee ◽  
Knee Joint Loading ◽  
Radiographic Knee Osteoarthritis

scholarly journals Timing of Frontal Plane Trunk Lean, Not Magnitude, Mediates Frontal Plane Knee Joint Loading in Patients with Moderate Medial Knee Osteoarthritis

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Freyja Hálfdanardóttir ◽  
Dan K. Ramsey ◽  
Kristín Briem
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Frontal Plane ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Hip Abductor ◽  
Knee Joint Loading ◽  
Abductor Strength ◽  
Rate Of Loading

The purpose of this study was to examine the influence of trunk lean and contralateral hip abductor strength on the peak knee adduction moment (KAM) and rate of loading in persons with moderate medial knee osteoarthritis. Thirty-one males (17 with osteoarthritis, 14 controls) underwent 3-dimensional motion analysis, strength testing of hip abductors, and knee range of motion (ROM) measures, as well as completing the knee osteoarthritis outcome score (KOOS). No differences were found between groups or limbs for gait cycle duration, but the osteoarthritis group had longer double-limb support during weight acceptance (p<0.001) and delayed frontal plane trunk motion towards the stance limb (p<0.01). This was reflected by a lower rate of loading for the osteoarthritis group compared to controls (p<0.001), whereas no differences were found for peak KAM. Trunk angle, contralateral hip abductor strength, and BMI explained the rate of loading at the involved knee (p<0.001), an association not found for the contralateral knee or control knees. Prolonged trunk lean over the stance limb may help lower peak KAM values. Rate of frontal plane knee joint loading may partly be mediated by the contralateral limb’s abductor strength, accentuating the importance of bilateral lower limb strength for persons with knee osteoarthritis.

Functional stretching decreases knee joint loading in male athletes with gastroc--soleus tightness

2021 ◽  
Keyword(s):  
Knee Joint ◽  
Knee Flexion ◽  
Functional Group ◽  
Daily Activities ◽  
Flexion Angle ◽  
Heel Strike ◽  
Knee Flexion Angle ◽  
Joint Loading ◽  
Male Athletes ◽  
Knee Joint Loading

Background and objective: Tightness of the gastroc--soleus muscle complex is one of the limiting factors of the ankle joint's range of motion (ROM) during daily activities. The aim of this study was to investigate the effectiveness of functional and extra-functional stretching of the gastrocnemius--soleus complex on knee joint loading in athletes with limited ankle dorsiflexion. Material and methods: In this cross-sectional study, 30 male athletes with gastrocnemius--soleus shortness were recruited and randomly divided into three equal-size groups of functional stretching, extra-functional stretching, and a control group. The extra-functional stretching group performed stretching exercises three times per day for eight weeks. The functional stretching group was instructed to change their gait pattern via increased heel strike during daily activities. Results: None of the stretching programs reduced the knee flexion angle in heel contact (p > 0.05). The knee flexion angle was significantly increased in the stance phase in the functional group (p ≤ 0.05). Walking speed was increased significantly in the extra-functional group (p ≤ 0.05). The knee adductor moment and external rotation moment decreased significantly in the functional group (p ≤ 0.05). Conclusion: An eight-week functional stretching program in this study led to a reduction of knee loading in the frontal and horizontal planes in comparison to the extra-functional stretching group, demonstrating the effectiveness of functional stretching in improving knee joint biomechanics during walking.

scholarly journals Medial knee joint loading during stair ambulation and walking while carrying loads

2013 ◽  
Vol 37 (3) ◽  
pp. 460-462 ◽  
Author(s):  
Michelle Hall ◽  
Elizabeth R. Boyer ◽  
Jason C. Gillette ◽  
Gary A. Mirka
Keyword(s):  
Knee Joint ◽  
Joint Loading ◽  
Medial Knee ◽  
Stair Ambulation ◽  
Knee Joint Loading

scholarly journals Relationship between foot function and medial knee joint loading in people with medial compartment knee osteoarthritis

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Pazit Levinger ◽  
Hylton B Menz ◽  
Adam D Morrow ◽  
John R Bartlett ◽  
Julian A Feller ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Medial Compartment ◽  
Joint Loading ◽  
Medial Knee ◽  
Foot Function ◽  
Knee Joint Loading

scholarly journals Knee joint loading differs in individuals with mild compared with moderate medial knee osteoarthritis

2006 ◽  
Vol 54 (12) ◽  
pp. 3842-3849 ◽  
Author(s):  
Laura E. Thorp ◽  
D. Richman Sumner ◽  
Joel A. Block ◽  
Kirsten C. Moisio ◽  
Susan Shott ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Knee Joint Loading

scholarly journals The Effect of Hip Bracing on Gait in Patients with Medial Knee Osteoarthritis

Arthritis ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
David Wallace ◽  
Christa Barr
Keyword(s):  
Knee Joint ◽  
Knee Osteoarthritis ◽  
External Rotation ◽  
Protective Mechanism ◽  
Joint Loading ◽  
Medial Knee ◽  
Medial Knee Osteoarthritis ◽  
Knee Oa ◽  
Repeated Measures Design ◽  
Knee Joint Loading

Objective. Impaired hip motion has been associated with heightened medial knee joint loading in patients with knee osteoarthritis (OA). A hip external rotation strap designed to pull the femur into external rotation and abduction may serve as one protective mechanism. The primary aim of our study is to determine if the strap decreases medial knee joint loading during level walking in people with knee OA. Design. This study is a single-day repeated measures design. Methods. 15 volunteers with medial knee OA underwent motion analysis data collection during two randomly assigned walking conditions: (1) wearing the strap and (2) control (no strap). Primary outcome measures were peak pelvis, hip and knee joint motions, and torques. These outcomes were averaged across five trials for each condition. Results. Hip abduction (), trunk lean towards the stance limb () and pelvic tilt () significantly increased with the strap versus control trials. Knee adduction loading did not significantly change with the strap (). Conclusion. The use of the hip external rotation strap resulted in angular changes at the hip and pelvis which may be beneficial for patients with medial knee osteoarthritis.

scholarly journals Comparison of Gait Symmetry and Joint Moments in Unilateral and Bilateral Hip Osteoarthritis Patients and Healthy Controls

2021 ◽  
Vol 9 ◽  
Author(s):  
S. van Drongelen ◽  
S. Braun ◽  
F. Stief ◽  
A. Meurer
Keyword(s):  
Knee Joint ◽  
Hip Osteoarthritis ◽  
Gait Pattern ◽  
Knee Adduction Moment ◽  
Healthy Controls ◽  
Joint Loading ◽  
Joint Moments ◽  
Gait Kinematics ◽  
Kinetics Of ◽  
Knee Joint Loading

Patients with unilateral hip osteoarthritis show a characteristic gait pattern in which they unload the affected leg and overload the unaffected leg. Information on the gait characteristics of patients with bilateral hip osteoarthritis is very limited. The main purposes of this study were to investigate whether the gait pattern of both legs of patients with bilateral hip osteoarthritis deviates from healthy controls and whether bilateral hip osteoarthritis patients show a more symmetrical joint load compared to unilateral hip osteoarthritis patients. In this prospective study, 26 patients with bilateral hip osteoarthritis, 26 patients with unilateral hip osteoarthritis and 26 healthy controls were included. The three groups were matched for gender, age and walking speed. Patients were scheduled for a unilateral total hip arthroplasty on the more affected/more painful side. All participants underwent a three-dimensional gait analysis. Gait kinematics and gait kinetics of patients and controls were compared using Statistical Parametric Mapping. Corrected for speed, the gait kinematics and kinetics of both legs of patients with bilateral hip osteoarthritis differed from healthy controls. Bilateral patients had symmetrical knee joint loading, in contrast to the asymmetrical knee joint loading in unilateral hip osteoarthritis patients. The ipsilateral leg of the bilateral patients could be included in studies in addition to unilateral hip osteoarthritis patients as no differences were found. Although patients with bilateral hip osteoarthritis show more symmetrical frontal plane knee joint moments, a pathological external knee adduction moment in the second half of stance was present in the ipsilateral leg in patients with unilateral and bilateral hip osteoarthritis. The lateral adjustment of the knee adduction moment may initiate or accelerate progression of degenerative changes in the lateral compartment of the knee.

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