Background. The maximum knee valgus angle (KVA) and minimum knee flexion angle (KFA) have been identified as risk factors for non-contact anterior cruciate ligament (ACL) injury. The present study investigated whether a recent history of lower limb injury in professional male football players can affect KVA and KFA during a single-leg vertical drop-jump (SLVDJ).
Methods. Twenty- one professional male football players performed a SLVDJ. The participants were divided into two groups depending on the history of a lower limb injury within the previous 12 months. Two-dimensional video analysis was used to investigate maximum KVA and minimum KFA using Kinovea software.
Results. There were statistically significant differences between the injured and uninjured football players during the jump with the least ground contact time in KVA (t = 2.123, df = 19, p = 0.047) and KFA (t = 2.530, df = 19, p = 0.020), and in the mean KVA (t = 2.359, df = 19, p = 0.029) and KFA (t = 2.157, df = 19, p = 0.044).
Conclusion. Football players who sustained a lower limb injury within the previous 12 months landed with increased KVA and decreased KFA at initial contact as compared to players without history of lower limb injury within the last 12 months.
ACL biomechanical risk factors on single-leg drop-jump: a cohort study comparing football players with and without history of lower limb injury
S. Daoukas, N. Malliaropoulos, N. Maffulli
Original Article, 70 - 75
Keywords: anterior cruciate ligament, kinematics, lower extremity biomechanics, risk factors, vertical drop jump,
Table of Content: Vol.9 (No.1) 2019 January/March
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M.L.T.J. – Muscle, Ligaments and Tendons Journal: 2019 The way forward
N. MaffulliEditorial, 1 -
Short term evaluation of the hamstring graft diameter after ACL reconstruction
D. Costa Astur, D. Pires, T. Parente, P. Debieux, C. Cohen Kaleka, A. Skaf, M. CohenOriginal Article, 3 - 7 -
The efficacy of bi-component carboxymethylcellulose-polysaccharide B as a hemostatic and anti-adherent agent at the tibial insertion of the hamstring tendons after reconstruction of the anterior cruciate ligament
D. Costa Astur, F. Caracatto Baras, R. Moukbel Chaim, J. J. Krob, G. Gonçalves Arliani, G. Taniguti de Oliveira, M. CohenOriginal Article, 8 -13 -
Multi-ligament injures of the knee: does the age matter? A long-term retrospective study
N. Zimmermann, L.B. Moser, M.T. HirschmannOriginal Article, 14 -20 -
The use of robotics devices in knee rehabilitation: a critical review
R. Wilmart, E. Garone, B. InnocentiOriginal Article, 21 - 48 -
Iliotibial band syndrome: can the lateral femoral epicondyle play a role? An anatomic study of individual variation in epicondyle prominence
J.S. Everhart, A. Di Bartola, A.M.W. Chaudhari, D.C. FlaniganOriginal Article, 49 - 54 -
Anterior cruciate ligament deficiency: rotational instability in the transverse plane. A preliminary laboratory in vivo study
A. Ferrer, R. Twycross-Lewis, N. MaffulliOriginal Article, 55 -61 -
Gait disturbances in football, rugby players and skiers following anterior cruciate ligament reconstruction
M.C. Zielinski, R. Twycross Lewis, R. Woledge, N. MaffulliOriginal Article, 62 - 69 -
ACL biomechanical risk factors on single-leg drop-jump: a cohort study comparing football players with and without history of lower limb injury
S. Daoukas, N. Malliaropoulos, N. MaffulliOriginal Article, 70 - 75 -
Posterior meniscal root repair: a biomechanical comparison between human and porcine menisci
L. Camarda, E. Bologna, D. Pavan, F. Morello, F. Monachino, F. Giacco, M. ZingalesOriginal Article, 76 - 81 -
Return to play after anterior cruciate ligament reconstruction: trans-tibial versus antero-medial technique
A. Tucciarone, L. Godente, F. Netti, F. Martinelli, R. Fabbrini,L. Del Ferraro, R. D’OnofrioOriginal Article, 82 - 89 -
Ultrasonography changes at quadriceps tendon donor site in anterior cruciate ligament reconstruction. Is it consistent with regeneration?
D. Nalla, S. Kumar Nema, D. Barathi, G. BalajiOriginal Article, 89 - 94 -
Vascular structures and relationship to intramuscular fat in supraspinatus muscle following tendon detachment and reattachment – an experimental study in rabbits
M. MacIntyre-Newell, H.K. Uhthoff, G. Trudel, O. LaneuvilleOriginal Article, 95 - 104 -
Complete rupture of the flexor hallucis longus tendon in an isolated closed injury. A systematic literature and qualitative analysis
D.L. Kerr, S. Butler, K. Thompson, A. HiggsOriginal Article, 105 - 111 -
Platelet-rich plasma in hamstring muscle injuries in professional soccer players. A pilot study
E. Bezuglov, N. Maffulli, A. Tokareva, E. AchkasovOriginal Article, 112 - 118 -
Morphological variants of nerve to gastrocnemius muscle, an anatomical guide to perform surgical dissection
V. Prathapamchandra, L. V. Prabhu, M. M. Pai, B.V. Murlimanju, R. VadgaonkarOriginal Article, 119 - 123 -
Usefulness of point shear wave elastography to assess the effects of extracorporeal shockwaves on spastic muscles in children with cerebral palsy: an uncontrolled experimental study
B. Corrado, M. Albano, M.G. Caprio, C. Di Luise, M. Sansone, V. Servodidio, S. Russo, G. Vallone, E.A. Vola, C. Servodio IammarroneOriginal Article, 124 - 130 -
A morphometric study of the popliteus myotendinous complex with its clinical aspects
P. C. Vani, V. RaveendranathOriginal Article, 131 - 137 -
Efficacy of triamcinolone injection with or without oral meloxicam for treatment of anserine syndrome: a randomized, double-blind, placebo controlled trial
S. Thiengwittayaporn, S. Phatwong, N. Kangkano, N. CharoenphandhuOriginal Article, 138 - 144 -
Correlation of Handgrip Strength to Postoperative Outcomes in Rotator Cuff Repair: A Preliminary Report
Y. Karanjkar, A. Prabhu, K. VishalOriginal Article, 145 - 149 -
Combined anatomic reconstruction of the anterior cruciate and anterolateral ligaments
N. Maffulli, F. Oliva, A. OlivieroOriginal Article, 150-155