Analysis of the Load on the Knee Joint and Vertebral Column with Changes in Squatting Depth and Weight Load

@article{Hartmann2013AnalysisOT,
  title={Analysis of the Load on the Knee Joint and Vertebral Column with Changes in Squatting Depth and Weight Load},
  author={Hagen Hartmann and Klaus Wirth and Markus J. Klusemann},
  journal={Sports Medicine},
  year={2013},
  volume={43},
  pages={993-1008}
}
It has been suggested that deep squats could cause an increased injury risk of the lumbar spine and the knee joints. [...] Key Method A search of relevant scientific publications was conducted between March 2011 and January 2013 using PubMed. Over 164 articles were included in the review. There are no realistic estimations of knee-joint forces for knee-flexion angles beyond 50° in the deep squat. Based on biomechanical calculations and measurements of cadaver knee joints, the highest retropatellar compressive…Expand
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References

SHOWING 1-10 OF 174 REFERENCES
Contact stresses in the knee joint in deep flexion.
TLDR
The results from this biomechanical study suggest that the adequacy of articular cartilage to support loads in the knee joint during deep flexion may be questionable, and the application of forces derived from previous studies of human walking and squatting is suggested. Expand
Tibiofemoral joint contact force in deep knee flexion and its consideration in knee osteoarthritis and joint replacement.
TLDR
The contact stress simulation suggests that knee prosthesis having the contact area smaller than 200 mm2 may be problematic since the contact stress in deep flexion would become larger than 21 MPa, and it would lead damage or wear of the polyethylene. Expand
Reduction in anterior shear forces on the L 4L 5 disc by the lumbar musculature.
TLDR
It appears that the combination of anatomical design and neural control of the musculature leads to a situation where the resultant shear force on the joint can be maintained at a relatively constant and safe level in the types of lifts studied. Expand
Patellar forces during knee extension.
TLDR
The biomechanical model may be used in knee rehabilitation activities to optimize and individualize exercise programmes and may also be applied to daily activities in order to quantify patellar forces. Expand
The importance of quadriceps and hamstring muscle loading on knee kinematics and in-situ forces in the ACL.
TLDR
It is demonstrated that maximum knee motion may not necessarily correspond to the highest in-situ forces in the anterior cruciate ligament (ACL) during a simulated isometric extension motion of the knee and that hamstring co-contraction with quadriceps is effective in reducing excessive force in the ACL. Expand
Thigh-calf contact: does it affect the loading of the knee in the high-flexion range?
TLDR
It is found that thigh-calf contact considerably reduced both the knee forces and polyethylene stresses during deep knee flexion and can be used to optimize the mechanical behavior of high-flexion total knee arthroplasty designs. Expand
Biomechanical analysis of the knee joint during deep knee bends with heavy load
The knee joint, the largest and most complex synovial joint in the human body, is an anatomical region subject to injuries from activities in various fields including athletics, industry, andExpand
Patellofemoral joint kinetics while squatting with and without an external load.
TLDR
It is suggested that in order to limit patellofemoral joint stress during squatting activities, clinicians should consider limiting terminal joint flexion angles and resistance loads. Expand
Lumbar spine loading during half-squat exercises.
TLDR
The magnitude of trunk flexion was found to be the variable which influenced most spinal compression load and it was predicted to be between 30 and 50% of the relevant maximal isometric force. Expand
The role of joint load in knee stability.
TLDR
Fresh cadaver knees were tested at full extension and at 20 degrees of fiexion in specially designed fixtures that allowed tibiofemoral contact forces to be applied to the knee while movement of the joint was not restricted. Expand
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