Relationship between hip and knee strength and knee valgus during a single leg squat.

@article{Claiborne2006RelationshipBH,
  title={Relationship between hip and knee strength and knee valgus during a single leg squat.},
  author={Tina L. Claiborne and Charles W. Armstrong and Varsha Gandhi and Danny M. Pincivero},
  journal={Journal of applied biomechanics},
  year={2006},
  volume={22 1},
  pages={
          41-50
        }
}
The purpose of this study was to determine the relationship between hip and knee strength, and valgus knee motion during a single leg squat. Thirty healthy adults (15 men, 15 women) stood on their preferred foot, squatted to approximately 60 deg of knee flexion, and returned to the standing position. Frontal plane knee motion was evaluated using 3-D motion analysis. During Session 2, isokinetic (60 deg/sec) concentric and eccentric hip (abduction/adduction, flexion/extension, and internal… 
View on PubMed
humankinetics.com
331 Citations
Highly Influential Citations
29
Background Citations
113
Methods Citations
20
Results Citations
14

Figures and Tables from this paper

331 Citations

The Relationship between Hip Strength and Peak Knee Valgus Angle during Single Leg Squat

Investigating whether hip muscle’s strength is significantly related to peak knee valgus angle (PKVA) during a single leg squat in healthy population found decreased isometric strength of hip abductors, adductors and extensors was closely associated with increased peak valgUS angle at the knee.

Relationship between hip and core strength and frontal plane alignment during a single leg squat.

Frontal and transverse plane hip kinematics and gluteus maximus recruitment correlate with frontal plane knee kinematics during single-leg squat tests in women.

RELATIONSHIP BETWEEN ISOKINETIC LEG STRENGTH AND KNEE FRONTAL PLANE PROJECTION ANGLE DURING SINGLE LEG SQUAT AMONG MALE JUNIOR ATHLETES

Isokinetic hip and knee strength and knee FPPA during SLS was correlated only for non-dominant leg during S LS among male junior athletes, suggesting that excessive dynamic knee valgus During SLS may be reduced through strengthening the muscles around hip and knees joints.

The effects of foot position on lower extremity kinematics during single leg squat among adolescent male athletes

Greater Hip Extension but Not Hip Abduction Explosive Strength Is Associated With Lesser Hip Adduction and Knee Valgus Motion During a Single-Leg Jump-Cut

Training with a specific emphasis on increasing explosive strength of the hip extensors may be a means through which to improve frontal plane hip and knee control during high-risk maneuvers such as cutting.

Evaluation of the Lateral Step-Down Test as a Clinical Assessment of Hip Musculature Strength

Hip musculature strength is not indicative of the magnitude of frontal plane knee motion during the lateral step-down test, and this test is not recommended for clinical assessment of hip muscle strength.

THE INFLUENCE OF HIP STRENGTH ON KNEE KINEMATICS DURING A SINGLE-LEGGED MEDIAL DROP LANDING AMONG COMPETITIVE COLLEGIATE BASKETBALL PLAYERS.

Significant correlations between hip strength and knee kinematics during SML were observed in both genders, suggesting that increased hip strength may help to prevent non-contact ACL injuries in athletes of both genders.

Correlation between hip function and knee kinematics evaluated by three-dimensional motion analysis during lateral and medial side-hopping

Range of motion for hip internal rotation should be taken into consideration for identifying the biomechanical characteristics in the side hop test results, showed an analysis of the interaction between knee motion and hip function.

Comparison of Knee Kinematics during Single Leg Squat across Physically Active Females with and without Dynamic Knee Valgus

The findings highlighted the importance of DKV screening among physically active females, and the rationale for prescribing individualized exercise intervention to prevent lower limb non-contact injuries.
...

References

SHOWING 1-10 OF 40 REFERENCES

Differences in Kinematics and Electromyographic Activity between Men and Women during the Single-Legged Squat *

Under a physiologic load in a position commonly assumed in sports, women tend to position their entire lower extremity and activate muscles in a manner that could increase strain on the anterior cruciate ligament.

Knee biomechanics of the dynamic squat exercise.

  • R. Escamilla
  • Medicine, Biology
    Medicine and science in sports and exercise
  • 2001
The squat was shown to be an effective exercise to employ during cruciate ligament or patellofemoral rehabilitation, and can enhance stability if performed correctly.

Relation Between Open and Closed Kinematic Chain Assessment of Knee Strength and Functional Performance

Concentric quadriceps and hamstring strength seem to demonstrate a significant contribution to the single leg hop for distance test; however, the hamstring muscles may play a more important role during the propulsive phase, thereby enabling subjects to jump further.

Knee joint kinematics during the sidestep cutting maneuver: potential for injury in women.

Gender differences in knee motions during cutting did not contribute to the increased risk of noncontact ACL injury in women compared with men and the potential relationship between gender and other parameters linked to ACL injury such as joint geometry, ligament morphology, and physical conditioning requires further investigation.

Hip strength in females with and without patellofemoral pain.

The results indicate that young women with patellofemoral pain are more likely to demonstrate weakness in hip abduction as well as external rotation than age-matched women who are not symptomatic.

Electromyographic analysis of knee rehabilitation exercises.

The muscle firing patterns in five knee muscles were described and compared during five rehabilitative exercises, which were presumed either to strengthen a specific muscle group or to elicit a cocontraction.

A comparison of knee joint motion patterns between men and women in selected athletic tasks.

Quantitative measurements of hip strength in different age groups.

Demographically, younger men produced the greatest torques and older women the lowest, and the strength values of older men and younger women were similar, which have clinical implications for objective assessment of strength in pathologic patient populations.

Core stability measures as risk factors for lower extremity injury in athletes.

Core stability has an important role in injury prevention and future study may reveal that differences in postural stability partially explain the gender bias among female athletes.

Gender-specific knee extensor torque, flexor torque, and muscle fatigue responses during maximal effort contractions

The findings suggest that during maximal-effort muscle contractions, males exhibit a higher susceptibility to muscle fatigue than females, a phenomenon that may be related to an inherent ability to generate higher knee extensor and flexor torque.