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https://www.readbyqxmd.com/read/27676837/congnitive-representations-on-patellar-tendinopathy-at-the-basketball-players-of-the-french-training-centers
#1
Julien Caquot, Anaick Perrochon, Jean-Luc Bugeaud, Xavier Dumélié, François Duzou, Jean-Christophe Daviet
OBJECTIVE: Jumper's knee is extremely common among basketball players of high-level even in the youth categories, with adverse consequences for the continuation of the practice. To establish a preventive educational action, we have sought to examine the cognitive representations of the players concerning the patellar tendinopathy. OBJECTIVE: Raise an appraisal of presentations and ideas accepted from the basketball players participants in the championship of France hope concerning the prevention of the patellar tendinothy (PT)...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676815/prevalence-of-pain-below-patella-in-the-basketball-players-of-the-championship-of-france-hope-pro-a
#2
Julien Caquot, Anaick Perrochon, Jean-Luc Bugeaud, Xavier Dumélié, Marc Pajon, Jean-Christophe Daviet
OBJECTIVE: The jumper-Knee is common among basketball player's with adverse consequences on the practice. For the sake of prevention, it seems interesting to study its importance in the younger categories. The aim of the present study was to collect epidemiological data on pain below patella in France hope Championship basketball. MATERIAL AND METHODS: We conducted a sectional survey by questionnaire, a given day. We sent ten questionnaires to the attention of players and a questionnaire to the attention of the coaches of the 18 participating training centers at the Championship of France pro A hope...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27625758/knee-muscular-control-during-jump-landing-in-multidirections
#3
Komsak Sinsurin, Roongtiwa Vachalathiti, Wattana Jalayondeja, Weerawat Limroongreungrat
BACKGROUND: Jump landing is a complex movement in sports. While competing and practicing, athletes frequently perform multi-planar jump landing. Anticipatory muscle activity could influence the amount of knee flexion and prepare the knee for dynamic weight bearing such as landing tasks. OBJECTIVES: The aim of the present study was to examine knee muscle function and knee flexion excursion as athletes naturally performed multi-direction jump landing. MATERIALS AND METHODS: Eighteen male athletes performed the jump-landing test in four directions: forward (0°), 30° diagonal, 60° diagonal, and lateral (90°)...
June 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27360550/comparison-of-high-and-low-volume-eccentric-resistance-training-in-patients-with-jumper%C3%A2-s-knee-1631-board-284-june-2-8-00-am-9-30-am
#4
Stephan Geisler, Andreas H Alt, Thorsten Kreutz
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/26959873/factors-that-influence-ground-reaction-force-profiles-during-counter-movement-jumping
#5
Alexander N Eagles, Mark G Sayers, Dale I Lovell
BAKGROUND: The purpose of this study was to examine how hip, knee and ankle kinetics and kinematics influence effective impulse production during countermovement jumps. METHODS: 18 semi-professional soccer players (22.8±2.2 years) volunteered to participate in the study. Participants completed three maximal countermovement jumps on two force platforms (1000 Hz) that were linked to a nine camera infrared motion capture system (500 Hz). RESULTS: Kinetic and kinematic data revealed jumpers who fail to achieve uniform ground reaction force curves that result in optimal impulse production during their jump always display hip adduction and or hip internal rotation during the concentric phase of the countermovement jump...
March 9, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/26808841/acute-improvement-of-vertical-jump-performance-after-isometric-squats-depends-on-knee-angle-and-vertical-jumping-ability
#6
Athanasios Tsoukos, Gregory C Bogdanis, Gerasimos Terzis, Panagiotis Veligekas
Tsoukos, A, Bogdanis, GC, Terzis, G, and Veligekas, P. Acute improvement of vertical jump performance after isometric squats depends on knee angle and vertical jumping ability. J Strength Cond Res 30(8): 2250-2257, 2016-This study examined the acute effects of maximum isometric squats at 2 different knee angles (90 or 140°) on countermovement jump (CMJ) performance in power athletes. Fourteen national-level male track and field power athletes completed 3 main trials (2 experimental and 1 control) in a randomized and counterbalanced order 1 week apart...
August 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26759254/incidence-and-prevalence-of-lower-extremity-tendinopathy-in-a-dutch-general-practice-population-a-cross-sectional-study
#7
Iris Sophie Albers, Johannes Zwerver, Ronald Leo Diercks, Janny Hendrika Dekker, Inge Van den Akker-Scheek
BACKGROUND: Lower extremity tendinopathy is a common sports injury, but it can also affect non-athletes. Because tendinopathy is difficult to treat and has negative effects on the ability to work and quality of life, development of preventive interventions is important. The first step in the Van Mechelen prevention model is to determine the extent of the problem. The primary aim of this study was to determine the incidence and prevalence of lower extremity tendinopathy in a Dutch general practice population...
2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/26701825/prospective-study-of-the-relation-between-landing-biomechanics-and-jumper-s-knee
#8
H van der Worp, H T D van der Does, M S Brink, J Zwerver, J M Hijmans
The literature on the relation between jump biomechanics and jumper's knee indicates that a jump with horizontal displacement poses a threat for developing jumper's knee. Subjects with jumper's knee have been shown to display a stiff landing pattern characterized by a small range of motion. However, up to now only cross-sectional studies have been conducted. 6 teams from sports involving repetitive landing were followed prospectively for 2 years. At baseline athletes performed the Landing Error Scoring System jump and 3D kinematics and kinetics were obtained...
March 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/26691406/evaluation-of-explosive-power-performance-in-ski-jumpers-and-nordic-combined-competitive-athletes-a-19-year-study
#9
Miroslav Janura, Lee Cabell, Zdenek Svoboda, Milan Elfmark
Between 1992 and 2010, a total of 334 males participated in this study that assessed the differences and relationships between anthropometric variables and lower limb muscle strength in young and adult ski jumpers (n = 207) and Nordic combined (NC, n = 127) athletes. All athletes completed a maximal vertical jump from an in-run position and a maximal relative isometric force (MRIF) of the knee extensor measurement in a laboratory setting. The body mass index (BMI) in young competitors was lower than in adult groups (NC: p < 0...
January 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26652150/editorial-commentary-arthroscopy-is-preferred-over-open-surgery-for-patellar-tendonitis
#10
EDITORIAL
James H Lubowitz
Jumper's knee is generally managed without surgery, but for patellar distal pole or midsubstance tendonitis (or tendinosis), if surgery is indicated, arthroscopic surgery is as effective as open, with faster return to play.
December 2015: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/26651526/reliability-of-a-field-based-drop-vertical-jump-screening-test-for-acl-injury-risk-assessment
#11
Lauren H Redler, Jonathan P Watling, Elizabeth R Dennis, Eric Swart, Christopher S Ahmad
OBJECTIVES: There is an epidemic of anterior cruciate ligament (ACL) injuries in youth athletes. Poor neuromuscular control is an easily modifiable risk factor for ACL injury, and can be screened for by observing dynamic knee valgus on landing in a drop vertical jump test. This study aims to validate a simple, clinically useful population-based screening test to identify at-risk athletes prior to participation in organized sports. We hypothesized that both physicians and allied health professionals would be accurate in subjectively assessing injury risk in real-time field and office conditions without motion analysis data and would be in agreement with each other...
2016: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/26605196/active-knee-range-of-motion-assessment-in-elite-track-and-field-athletes-normative-values
#12
Nikos Malliaropoulos, Lena Kakoura, Kostas Tsitas, Dimitris Christodoulou, Alexandros Siozos, Peter Malliaras, Nicola Maffulli
BACKGROUND: flexibility is an important physical characteristic in athletes in terms of performance and injury prevention. Active Range Of Motion (AROM) was assessed in elite Greek track and field athletes. METHODS: prospective cohort study was carried out. In the period 2000-2010, the AROM was measured bilaterally with the Active Knee Extension (AKE) test during an in-season period with a goniometer in 127 athletes. RESULTS: male runners and jumpers had a higher mean AROM than throwers, but this result was not statistically significant...
July 2015: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/26418370/kinematics-and-kinetics-of-squats-drop-jumps-and-imitation-jumps-of-ski-jumpers
#13
Carole A Pauli, Melanie Keller, Fabian Ammann, Klaus Hübner, Julia Lindorfer, William R Taylor, Silvio Lorenzetti
Squats, drop jumps, and imitation jumps are commonly used training exercises in ski jumping to enhance maximum force, explosive force, and sport-specific skills. The purpose of this study was to evaluate the kinetics and kinematics of training exercises in ski jumping and to find objective parameters in training exercises that most correlate with the competition performance of ski jumpers. To this end, barbell squats, drop jumps, and imitation jumps were measured in a laboratory environment for 10 elite ski jumpers...
March 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/26399331/state-of-the-art-ultrasonographic-findings-in-lower-extremity-sports-injuries
#14
Naoto Suzue, Tetsuya Matsuura, Toshiyuki Iwame, Kosaku Higashino, Toshinori Sakai, Daisuke Hamada, Tomohiro Goto, Yoichiro Takata, Toshihiko Nishisho, Yuichiro Goda, Takahiko Tsutsui, Ichiro Tonogai, Ryo Miyagi, Mitsunobu Abe, Masatoshi Morimoto, Kazuaki Mineta, Tetsuya Kimura, Akihiro Nitta, Tadahiro Higuchi, Shingo Hama, Subash C Jha, Rui Takahashi, Shoji Fukuta, Koichi Sairyo
Athletes sometimes experience overuse injuries. To diagnose these injuries, ultrasonography is often more useful than plain radiography, computed tomography (CT), or magnetic resonance imaging (MRI). Ultrasonography can show both bone and soft tissue from various angles as needed, providing great detail in many cases. In conditions such as osteochondrosis or enthesopathies such as Osgood-Schlatter disease, Sinding-Larsen-Johansson disease, bipartite patella, osteochondritis dissecans of the knee, painful accessory navicular,and jumper's knee, ultrasonography can reveal certain types of bony irregularities or neovascularization of the surrounding tissue...
2015: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/26384568/the-cross-sectional-area-of-the-gluteus-maximus-muscle-varies-according-to-habitual-exercise-loading-implications-for-activity-related-and-evolutionary-studies
#15
Sirpa Niinimäki, Laura Härkönen, Riku Nikander, Shinya Abe, Christopher Knüsel, Harri Sievänen
Greater size of the gluteus maximus muscle in humans compared to non-human primates has been considered an indication of its function in bipedal posture and gait, especially running capabilities. Our aim was to find out how the size of the gluteus maximus muscle varies according to sports while controlling for variation in muscle strength and body weight. Data on gluteus maximus muscle cross-sectional area (MCA) were acquired from magnetic resonance images of the hip region of female athletes (N=91), and physically active controls (N=20)...
April 2016: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/26368027/how-do-elite-ski-jumpers-handle-the-dynamic-conditions-in-imitation-jumps
#16
Gertjan Ettema, Jo Hooiveld, Steinar Braaten, Maarten Bobbert
We examined the effect of boundary conditions in imitation ski jumping on movement dynamics and coordination. We compared imitation ski jumps with - and without - the possibility to generate shear propulsion forces. Six elite ski jumpers performed imitation jumps by jumping from a fixed surface and from a rolling platform. The ground reaction force vector, kinematics of body segments, and EMG of eight lower limb muscles were recorded. Net joint dynamics were calculated using inverse dynamics. The two imitation jumps differed considerably from each other with regard to the dynamics (moments, forces), whereas the kinematics were very similar...
June 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/26280964/one-year-follow-up-of-platelet-rich-plasma-infiltration-to-treat-chronic-proximal-patellar-tendinopathies
#17
Jean-François Kaux, Olivier Bruyere, Jean-Louis Croisier, Bénédicte Forthomme, Caroline Le Goff, Jean-Michel Crielaard
Infiltration of Platelet-Rich Plasma (PRP) may be considered as a recent therapeutic option for chronic tendinopathies. The aim of this study is to evaluate the clinical status and the return to sports activities in patients with chronic proximal patellar tendinopathies. Twenty subjects with chronic proximal patellar tendinopathy benefited from 1 infiltration of PRP coupled with a standardized eccentric rehabilitation. The follow-up (up to 1 year) was assessed by means of a Visual Anologue Scale (VAS), the International Knee Documentation Committee (IKDC) form and the Victorian Institute of Sport Assessment (VISA-P) score...
June 2015: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/26248496/results-of-surgical-treatment-of-chronic-patellar-tendinosis-jumper-s-knee-a-systematic-review-of-the-literature
#18
REVIEW
Matthias Brockmeyer, Nora Diehl, Cornelia Schmitt, Dieter M Kohn, Olaf Lorbach
PURPOSE: To review the literature concerning surgical treatment options for chronic patellar tendinosis (jumper's knee), a common problem among athletes. When conservative treatment fails, surgical treatment is required. METHODS: Systematic review of the literature concerning the results of current surgical treatment options for chronic patellar tendinosis. All articles of studies with an evidence level ≥IV from January 2000 until February 2015 presenting the surgical outcome after arthroscopic as well as open treatment of chronic patellar tendinosis were included...
December 2015: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/25982090/prognostic-factors-of-extracorporeal-shock-wave-therapy-for-tendinopathies
#19
A Notarnicola, G Maccagnano, S Tafuri, A Fiore, C Margiotta, V Pesce, B Moretti
INTRODUCTION: Extracorporeal shock wave therapy is very widely used for the management of tendinopathies and plantar fasciitis. AIM: The aim of the study is to determine whether there are prognostic factors that may influence the outcome of extracorporeal shock wave therapy for these diseases. METHODS: Three hundred fifty-five patients were analyzed 2 months after shock wave treatment for rotator cuff tendinitis, epicondylitis, Achilles tendinopathy, trocanteritis, jumper's knee or plantar fasciitis...
April 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/25973368/endoscopic-resection-of-lipoma-of-the-patellar%C3%A2-tendon
#20
Tun Hing Lui, Man Wai Lee
Synovial lipoma of the patellar tendon is a very rare entity. It can be associated with rupture of the patellar tendon. We present a case of synovial lipoma that was successfully resected endoscopically. The other indications for patellar tendoscopy include chronic patellar tendinitis and tendinosis, recalcitrant bursitis around the tendon, Osgood-Schlatter disease, and jumper's knee. The major potential danger of this endoscopic procedure is iatrogenic damage to the patellar insertion during endoscopic debridement in patients with jumper's knee or the tibial insertion during endoscopic debridement in patients with Osgood-Schlatter disease...
February 2015: Arthroscopy Techniques
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