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https://www.readbyqxmd.com/read/28725437/towards-evidence-based-strength-training-a-comparison-of-muscle-forces-during-deadlifts-goodmornings-and-split-squats
#1
Florian Schellenberg, William R Taylor, Silvio Lorenzetti
BACKGROUND: To ensure an efficient and targeted adaptation with low injury risk during strength exercises, knowledge of the participant specific internal loading conditions is essential. The goal of this study was to calculate the lower limb muscles forces during the strength exercises deadlifts, goodmornings and splits squats by means of musculoskeletal simulation. METHODS: 11 participants were assessed performing 10 different variations of split squats by varying the step length as well as the maximal frontal tibia angle, and 13 participants were measured performing deadlift and goodmorning exercises...
2017: BMC Sports Science, Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28717624/ipsilateral-hamstring-tendon-graft-reconstruction-for-chronic-patellar-tendon-ruptures-surgical-technique
#2
Nicola Maffulli, Angelo Del Buono, Francesco Oliva
BACKGROUND: Patellar tendon chronic ruptures are more debated to manage that acute injuries as the patella tends to retract proximally (after 2 weeks), and surrounding soft tissues may make the repair more complicate. PURPOSE: We propose a novel technique in which the patellar tendon is reconstructed using ipsilateral hamstring tendons. This surgical procedure implies to drill a single tunnel through the patella and another through the tibia to reduce the risk of bony breakage...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28714793/equivalent-knee-injury-and-osteoarthritis-outcome-scores-12-and-24-months-after-anterior-cruciate-ligament-reconstruction-results-from-the-swedish-national-knee-ligament-register
#3
Kristian Samuelsson, Robert A Magnussen, Eduard Alentorn-Geli, Ferid Krupic, Kurt P Spindler, Christer Johansson, Magnus Forssblad, Jón Karlsson
BACKGROUND: It is not clear whether Knee injury and Osteoarthritis Outcome Score (KOOS) results will be different 1 or 2 years after anterior cruciate ligament (ACL) reconstruction. PURPOSE: To investigate within individual patients enrolled in the Swedish National Knee Ligament Register whether there is equivalence between KOOS at 1 and 2 years after primary ACL reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period January 1, 2005, through December 31, 2013...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28714771/acute-effect-of-static-stretching-on-lower-limb-movement-performance-by-using-stabl-virtual-reality-system
#4
Mariam A Ameer, Qassim I Muaidi
CONTEXT: The effect of acute static stretch (ASS) on the lower limb RT has been recently questioned to decrease the risk of falling and injuries in situations requiring a rapid reaction, as in the cases of balance disturbance. OBJECTIVE: The main purpose of this study was to detect the effect of ASS on the lower limb RT by using virtual reality device. DESIGN: Two Group Control Group design. SETTING: Research laboratory...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28714762/effectiveness-of-prp-injection-in-reducing-recovery-time-of-acute-hamstring-injury-a-critically-appraised-topic
#5
Mary Lynn Manduca, Stephen J Straub
Clinical Scenario Hamstring strains are common athletic injuries, with a high recurrence rate (34%).(2) Recently, platelet-rich-plasma (PRP) injections have gained popularity as a potential treatment option to accelerate healing of hamstring injury.(3) Focused Clinical Question Does the combination of PRP injection and rehabilitation decrease recovery time of acute hamstring injury as compared to rehabilitation alone in collegiate athletes? Summary of Key Findings A literature search resulted in three randomized controlled trials (RCT)...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28710543/acute-non-contact-anterior-cruciate-ligament-tears-are-associated-with-relatively-increased-vastus-medialis-to-semimembranosus-cross-sectional-area-ratio-a-case-control-retrospective-mr-study
#6
Ged G Wieschhoff, Jacob C Mandell, Gregory J Czuczman, Violeta Nikac, Nehal Shah, Stacy E Smith
OBJECTIVE: Hamstring muscle deficiency is increasingly recognized as a risk factor for anterior cruciate ligament (ACL) tears. The purpose of this study is to evaluate the vastus medialis to semimembranosus cross-sectional area (VM:SM CSA) ratio on magnetic resonance imaging (MRI) in patients with ACL tears compared to controls. MATERIALS AND METHODS: One hundred knee MRIs of acute ACL tear patients and 100 age-, sex-, and side-matched controls were included. Mechanism of injury, contact versus non-contact, was determined for each ACL tear subject...
July 15, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28706811/surgical-technique-for-arthroscopy-assisted-anatomical-reconstruction-of-acromioclavicular-and-coracoclavicular-ligaments-using-autologous-hamstring-graft-in-chronic-acromioclavicular-joint-dislocations
#7
Bancha Chernchujit, Prashant Parate
Injuries to the acromioclavicular (AC) joint are becoming common with contact sports and bike accidents. It is well known that in AC dislocations, the first structure to fail is the AC capsule followed by the trapezoid and conoid ligaments. The function of these ligaments must be restored to restore the anatomy and physiology of the AC joint to get the best results. Until now, no technique has emerged as the gold standard for restoration of the AC joint anatomy and function. In our technique, the stress is on recreating the anatomy to make it more individualized based on individual variations...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28706801/combined-anatomic-reconstruction-of-the-anterior-cruciate-and-anterolateral-ligaments-using-hamstring-graft-through-a-single-femoral-tunnel-and-with-a-single-femoral-fixation
#8
Assem Mohamed Noureldin Zein, Mohamed Ali, Hesham Ali, Ahmed Nady Saleh Elsaid, Alaa Zenhom Mahmoud, Mohamed K Osman, Amr Mohamed Mohamed Soliman
Patients with complete anterior cruciate ligament (ACL) injury have different degrees of rotational (internal rotation) laxity. A residual pivot shift has been found to be positive in more than 15% of cases after an accurate ACL reconstruction. Improved understanding of the existence, function, and biomechanical role of the anterolateral ligament (ALL) in controlling rotational instability of the knee has redirected and refocused attention on a supplemental extra-articular reconstruction of the ALL in conjunction with the intra-articular ACL reconstruction so as to restore normal kinematics of the knee...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28704884/prone-hip-extension-muscle-recruitment-is-associated-with-hamstring-injury-risk-in-amateur-soccer
#9
Joke Schuermans, Damien Van Tiggelen, Erik Witvrouw
'Core stability' is considered essential in rehabilitation and prevention. Particularly with respect to hamstring injury prevention, assessment and training of lumbo-pelvic control is thought to be key. However, supporting scientific evidence is lacking. To explore the importance of proximal neuromuscular function with regard to hamstring injury susceptibility, this study investigated the association between the Prone Hip Extension (PHE) muscle activation pattern and hamstring injury incidence in amateur soccer players...
July 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28702442/kinematics-and-neuromuscular-recruitment-during-vertical-treadmill-exercise
#10
Alastair R Jordan, Andrew Barnes, David Claxton, Alison Purvis, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched, partial weight-bearing exercise mode for lower limb rehabilitation. The user undertakes a "running-like" action whilst body weight is supported by a bench and the limb is drawn downwards against overhanging resistance cables on a vertically hung nonmotorised treadmill. This study sought to describe the kinematics and neuromuscular recruitment during VertiRun exercise in the supine, 40°, and 70° postures. Twenty-one healthy male participants (age, 25±7 years; stature, 1...
June 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28690461/hospital-for-special-surgery-acl-registry-2-year-outcomes-suggest-low-revision-and-return-to-or-rates
#11
Moira McCarthy, Katherine Mallett, Matthew Abola, Sherrie Vassallo, Joseph Nguyen
BACKGROUND: Anterior cruciate ligament (ACL) injuries are among the most common knee injuries. Patient outcomes, rate of subsequent operations, and rate of subsequent ACL reconstruction following primary ACL reconstruction need to be evaluated. QUESTIONS/PURPOSES: This study was designed to answer the following questions: (1) What is the return to surgery (OR) rate following primary ACL reconstruction and (2) what is the revision ACL reconstruction rate? METHODS: Data was drawn from the Hospital for Special Surgery (HSS) ACL Registry...
July 2017: HSS Journal: the Musculoskeletal Journal of Hospital for Special Surgery
https://www.readbyqxmd.com/read/28683419/deviating-running-kinematics-and-hamstring-injury-susceptibility-in-male-soccer-players-cause-or-consequence
#12
Joke Schuermans, Damien Van Tiggelen, Tanneke Palmans, Lieven Danneels, Erik Witvrouw
BACKGROUND: Although the vast majority of hamstring injuries in male soccer are sustained during high speed running, the association between sprinting kinematics and hamstring injury vulnerability has never been investigated prospectively in a cohort at risk. PURPOSE: This study aimed to objectify the importance of lower limb and trunk kinematics during full sprint in hamstring injury susceptibility. STUDY DESIGN: Cohort study; level of evidence, 2...
June 27, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28655325/injury-to-infrapatellar-branch-of-saphenous-nerve-in-anterior-cruciate-ligament-reconstruction-using-vertical-skin-incision-for-hamstring-harvesting-risk-factors-and-the-influence-of-treatment-outcome
#13
Satoshi Ochiai, Tetsuo Hagino, Shinya Senga, Takashi Yamashita, Kotaro Oda, Hirotaka Haro
BACKGROUND: Injury to the infrapatellar branch of the saphenous nerve (IPBSN) is a high-frequency complication in anterior cruciate ligament (ACL) reconstruction. We analyzed the risk factor of IPBSN injury in ACL reconstruction. Moreover, we investigated the influence on treatment outcome by this complication. METHODS: One hundred twenty-three patients who underwent ACL reconstruction using semitendinosus tendon graft were studied. Gender, age, BMI, and additional use of gracilis tendon were recorded...
June 27, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28655128/clinical-outcomes-of-kinesio-taping-applied-in-patients-with-knee-osteoarthritis-a-randomized-controlled-trial
#14
Onur Aydoğdu, Zübeyir Sari, S Ufuk Yurdalan, M Gülden Polat
INTRODUCTION: The aim of this study was to compare kinesio taping along with conventional treatment to conventional treatment alone and to report the results of both a single and repetitive kinesio taping application applied on quadriceps femoris and hamstring muscles on pain, range of motion, muscle strength, and functional status in patients with knee osteoarthritis. METHODS: Fifty-four patients with knee osteoarthritis were randomly allocated to two groups. A total of 28 patients were included in kinesio taping group, others were included in the control group...
June 2, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28643103/patient-age-as-a-preoperative-factor-associated-with-tunnel-enlargement-following-double-bundle-anterior-cruciate-ligament-reconstruction-using-hamstring-tendon-autografts
#15
Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Tomoyuki Nakagawa, Hiroyuki Shiozawa, Takashi Ohsawa
PURPOSE: A few studies have detected associations of post-operative tunnel enlargement with sex, age, and the timing of anterior cruciate ligament reconstruction (ACLR). The aim of the present study was to investigate the correlation between post-operative tunnel enlargement following ACLR using hamstring tendon autografts and preoperative factors. The authors hypothesized that tunnel enlargement is associated with age in patients undergoing ACLR. METHODS: One hundred and six patients (male, n = 57; female, n = 49; mean age, 26...
June 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28642247/clinical-benefit-of-the-fifa-11-programme-for-the-prevention-of-hamstring-and-lateral-ankle-ligament-injuries-among-amateur-soccer-players
#16
Rauf Nouni-Garcia, Concepcion Carratala-Munuera, Domingo Orozco-Beltran, Adriana Lopez-Pineda, María Rosario Asensio-Garcia, Vicente F Gil-Guillen
OBJECTIVE: To analyse the relationship between the implementation of 'the 11' protocol during the regular season in a men's amateur soccer team and the rate of hamstring and lateral ankle ligament (LAL) injuries, and to estimate the clinical benefit of the programme according to the type of injury and the position field. METHODS: This cohort study was conducted in two different men's amateur soccer teams. During two seasons, the exposed group (43 players) performed 'the 11' protocol twice a week, and the unexposed group (43 players) performed the regular training programme...
June 22, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28631112/risk-of-revision-was-not-reduced-by-a-double-bundle-acl-reconstruction-technique-results-from-the-scandinavian-registers
#17
Cathrine Aga, Jüri-Tomas Kartus, Martin Lind, Stein Håkon Låstad Lygre, Lars-Petter Granan, Lars Engebretsen
BACKGROUND: Double-bundle anterior cruciate ligament (ACL) reconstruction has demonstrated improved biomechanical properties and moderately better objective outcomes compared with single-bundle reconstructions. This could make an impact on the rerupture rate and reduce the risk of revisions in patients undergoing double-bundle ACL reconstruction compared with patients reconstructed with a traditional single-bundle technique. The National Knee Ligament Registers in Scandinavia provide information that can be used to evaluate the revision outcome after ACL reconstructions...
June 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28630577/effects-of-high-velocity-elastic-band-versus-heavy-resistance-training-on-hamstring-strength-activation-and-sprint-running-performance
#18
Donatas Janusevicius, Audrius Snieckus, Albertas Skurvydas, Viktoras Silinskas, Eugenijus Trinkunas, Joan Aureli Cadefau, Sigitas Kamandulis
Hamstring muscle injuries occur during high-speed activities, which suggests that muscular strength at high velocities may be more important than maximal strength. This study examined hamstring adaptations to training for maximal strength and for strength at high velocities. Physically active men (n = 25; age, 23.0 ± 3.2 years) were randomly divided into: (1) a resistance training (RT, n = 8) group, which performed high-load, low-velocity concentric-eccentric hamstring contractions; (2) a resistance training concentric (RTC; n = 9) group, which performed high-load, low-velocity concentric-only hamstring contractions; and (3) a high-velocity elastic band training (HVT, n = 8) group, which performed low-load, high-velocity concentric-eccentric hamstring contractions...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28599980/generalized-hypermobility-knee-hyperextension-and-outcomes-after-anterior-cruciate-ligament-reconstruction-prospective-case-control-study-with-mean-6%C3%A2-years-follow-up
#19
Christopher M Larson, Asheesh Bedi, Mark E Dietrich, Jennifer C Swaringen, Corey A Wulf, David M Rowley, M Russell Giveans
PURPOSE: To determine whether generalized hypermobility and contralateral knee hyperextension affect failure rates and patient-related outcomes after anterior cruciate ligament reconstruction (ACLR). METHODS: A total of 226 consecutive patients presenting with acute ACL tears were prospectively evaluated for generalized hypermobility by a modified Beighton criteria. Minimum 2-year follow-up was achieved for 183 knees (81%). Patients underwent ACLR with either bone-patellar-tendon (BPTB) autograft (n = 46), quadrupled hamstring (HT) autograft (n = 85), or allograft tissue (n = 52)...
June 6, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28593387/increased-odds-of-patient-reported-success-at-2%C3%A2-years-after-anterior-cruciate-ligament-reconstruction-in-patients-without-cartilage-lesions-a-cohort-study-from-the-swedish-national-knee-ligament-register
#20
Eric Hamrin Senorski, Eduard Alentorn-Geli, Volker Musahl, Freddie Fu, Ferid Krupic, Neel Desai, Olof Westin, Kristian Samuelsson
PURPOSE: To investigate whether the surgical technique of single-bundle anterior cruciate ligament (ACL) reconstruction, the visualization of anatomic surgical factors and the presence or absence of concomitant injuries at primary ACL reconstruction are able to predict patient-reported success and failure. The hypothesis of this study was that anatomic single-bundle surgical procedures would be predictive of patient-reported success. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period of 1 January 2005 through 31 December 2014...
June 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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