A longitudinal investigation of landing biomechanics following anterior cruciate ligament reconstruction

Webster, Kylie E.; Ristanis, Stavros; Feller, Julian A.

doi:10.1016/j.ptsp.2021.03.012

Physical Therapy in Sport

2021

DOI: 10.1016/j.ptsp.2021.03.012

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A longitudinal investigation of landing biomechanics following anterior cruciate ligament reconstruction

Kylie E. Webster

Stavros Ristanis

Julian A. Feller

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Cited by 5 publications

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“…33 To date, few studies have analyzed lower extremity joint power contributions to vertical jumping in patients after ACLR, and most studies have focused exclusively on joint power absorption during the landing phase of the jump. 19,27,35,45 While the landing phase may be relevant in regard to the second injury risk, analysis of the propulsive phase of jumping may elucidate return to performance readiness. 26 Two recent studies analyzed joint work and power generation during the propulsive phase of jumping and found evidence to suggest that knee joint power is significantly reduced in the involved limb at 6 to 9 months after ACLR.…”

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Relationship Between Quadriceps Strength and Knee Joint Power During Jumping After ACLR

Graham

Reeves

Johnson

et al. 2023

Orthopaedic Journal of Sports Medicine

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Background: Knee joint power is significantly impaired during the propulsive phase of jumping after anterior cruciate ligament reconstruction (ACLR); however, it is currently unknown how quadriceps strength influences knee joint power. Purpose: To (1) evaluate the relationship between quadriceps strength, joint power, and the percentage contribution of the hip, knee, and ankle joints to total limb power during the propulsive phase of jumping and (2) establish a quadriceps strength cutoff value for maximizing the likelihood of having knee joint power characteristics similar to healthy participants. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 75 participants were included in this study—40 patients who underwent ACLR 6 months before (18 females; mean age, 19.3 ± 5.7 years) and 35 healthy controls (HC) (20 females; mean age, 21.5 ± 4.5 years). Participants performed a drop vertical jump and underwent isometric quadriceps strength testing. The peak joint power was calculated as the product of the internal joint moment and joint angular velocity. Pearson product-moment correlations were used to assess the relationship between quadriceps strength and knee joint power. Paired samples t tests were used to quantify differences between limbs. Receiver operating characteristic (ROC) curve analysis was used to determine a quadriceps strength cutoff. Results: The involved limbs of the ACLR cohort (INV) had significantly lower peak knee joint power and percentage contribution from the knee joint during jumping compared with the uninvolved limbs (NON) and limbs of the controls (INV, 2.5 ± 1.2 W/kg; NON, 4.4 ± 1.5 W/kg; HC, 4.3 ± 1.7 W/kg [ P < .0001]). Quadriceps strength was associated with knee joint power in involved limbs and limbs of controls (INV, r = 0.50; HC, r = 0.60). A quadriceps strength cutoff value of 2.07 N·m/kg had an area under the ROC curve of 0.842, indicating good predictive accuracy. Conclusion: Athletes at 6 months after ACLR demonstrated knee-avoidant jumping mechanics and had significant reductions in knee joint power on the involved limb. A quadriceps strength cutoff value of 2.07 N·m/kg can help predict which athletes will display knee joint power characteristics similar to those of healthy controls.

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confidence: 99%

Relationship Between Quadriceps Strength and Knee Joint Power During Jumping After ACLR

Graham

Reeves

Johnson

et al. 2023

Orthopaedic Journal of Sports Medicine

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Are lower limb symmetry and self-reported symptoms associated with functional and neuromuscular outcomes in Brazilian adults with anterior cruciate ligament reconstruction? A cross-sectional study

Queiroz,

Hamu,

Barboza

et al. 2024

Journal of Bodywork and Movement Therapies

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Associations between postural orientation errors in patients undergoing rehabilitation for ACL reconstruction and future patient-reported outcomes: An explorative study

Cronström,

Ageberg,

Zeraidi

et al. 2023

JSAMS Plus

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A longitudinal investigation of landing biomechanics following anterior cruciate ligament reconstruction

Cited by 5 publications

References 40 publications

Relationship Between Quadriceps Strength and Knee Joint Power During Jumping After ACLR

Relationship Between Quadriceps Strength and Knee Joint Power During Jumping After ACLR

Are lower limb symmetry and self-reported symptoms associated with functional and neuromuscular outcomes in Brazilian adults with anterior cruciate ligament reconstruction? A cross-sectional study

Associations between postural orientation errors in patients undergoing rehabilitation for ACL reconstruction and future patient-reported outcomes: An explorative study

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