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| 1 | Limb symmetry index in competitive alpine ski racers:Reference values and injury risk identification according to age-related performance levels显示文摘Purpose: The aims of this study were to assess differences of limb symmetry index(LSI) in strength-and coordination-related tasks between high-level, competitive, noninjured ski racers of different age-related performance levels and to prospectively assess limb differences as a possible risk factor for traumatic and overuse injury in youth ski racers.Methods: The study(Study 1) included 285 high-level competitive ski racers(125 females, 160 males) of 3 age-related performance levels and based on the school system: 95 youth(10à14 years, secondary modern school), 107 adolescent(15à19 years, grammar school), and 83 elite athletes(20à34 years). To investigate the second aim(Study 2), 67 of the 95 youth athletes were included and any traumatic or overuse injuries were prospectively recorded over 2 seasons. All athletes performed 4 unilateral tests(strength related: one-leg counter movement jump(OL-CMJ) and one-leg isometric/isokinetic press strength test(OL-ILS); coordination related: one-leg stability test(OL-ST) and one-leg speedy jump test(OL-SJ)). The LSI was calculated by dividing the dominant leg by the nondominant leg and multiplying by 100. Kruskal-Wallis H tests and binary logistic regression analyses were conducted.Results: There were significant differences between the LSI of the 3 age-related performance-level groups only in the strength-related tests: the OL-CMJ(x2(2, 285) = 9.09; p = 0.01) and the OL-ILS(x2(2, 285) = 14.79; p < 0.01). The LSI for OL-ILS was found to be a significant risk factor for traumatic injury in youth ski racers(Wald = 7.08; p < 0.01). No significant risk factors were found for overuse injuries.Conclusion: Younger athletes display slightly greater LSI values only in the strength-related tests. The cut-off value of limb differences of <10%for return to sport decisions seems to be appropriate for elite athletes, but for youth and adolescent athletes it has to be critically discussed. It seems to be necessary to define thresholds based on specific performance tasks(strength vs. coordination related) rather than on generalizations,and age-related performance levels must be considered. Limb differences in unilateral leg extension strength represent a significant injury risk factor in youth ski racers. | Lisa Steidl-Müller Carolin Hildebrandt Erich Müiller Christian Fink Christian Raschner | 2018 | Journal of Sport and Health Science2018，7，4： | 6 |
| 2 | Transjugular intrahepatic portosystemic shunt (TIPS):diagnostic and therapeutic technology assessment (DATTA)显示文摘 | M iller Catchpole R | 1995 | JAMA1995，273，： | 1 |
| 3 | Copeptin a stable pep- tide of the arginine vasopressin precursor, is elevated in hemorrhagic and septic shock 显示文摘 | Morgenthaler NG M~iller B Struck J | 2007 | Shock2007，28，2： | 1 |
| 4 | Cytokinin signaling networks显示文摘 | Hwang I Sheen J M üiller B | | 0，，01： | 1 |
| 5 | Structure of the HCMV UL16-MICB complex elucidates select binding of a viral immunoevasin to diverse NKG2D ligands显示文摘 | Müiller S Zocher G Steinle A | 2010 | PLoS Pathog2010，6，10： | 1 |
| 6 | Reporting result of cancer treatment显示文摘 | Iller AB Hoogstraten B Staquet M | 1998 | Cancer1998，47，1： | 1 |
| 7 | Absorption and metabolism of orally administered purines in fed and fasted rats显示文摘 | Ho CY M iller KV Savaiano DA | 1979 | J Natr1979，11，： | 1 |
| 8 | The synthetic bacterial lipopeptide Pam3CSK4 modulates respiratory syncytial virus infection independent of TLR activation 显示文摘 | Nguyen DT de Witte L Ludlow M Y/iksel S Wiesm/iller KH Geijtenbeek TB Osterhaus AD de Swart RL | 2010 | PLoS Pathog2010，6，10： | 1 |
| 9 | Preparing the family to care for the cancer patient at home:a home care course显示文摘 | M iller MW | 1981 | Cancer nursing1981，4，1： | 1 |
| 10 | FHL2,a novel tissue-specific coactivator ofthe androgen receptor显示文摘 | Müiller JM Isele U Metzger E | 2000 | EMBO J2000，19，： | 1 |
| 11 | A review of content-based image retrieval systems in medical applications--clinical benefits and future directions 显示文摘 | Henning M~iller Nicolas Michoux | 2004 | International Journal of Medical Informatics2004，73，1： | 1 |
| 12 | International consensus on bilateral cochlear implants and bimodal stimulation显示文摘 | Offeciers E Morera C M/iller J | 2005 | Acta Otolaryngol2005，125，9： | 1 |
| 13 | Chronicphototoxicity and aggressive squam ous cell carcinom a ofthe skin in children and adults during treatm ent w ithvoriconazole显示文摘 | Cowen E W N guyen J C M iller D D | | J Am Acad D erm atol0，62，1： | 1 |
| 14 | Wireless technology and satellite Intemet access for high - speed w hole farm connectivity in precision agriculture 显示文摘 | McKinion J M Turner S B W illers J L | 2004 | Agricultural Systems2004，81，3： | 1 |
| 15 | Investigation of the electrophoretic deposition behaviour of non-aqueous ceramic suspensions显示文摘 | Moritz K Müiller E | 2006 | J Mater Sci2006，41，24： | 1 |
| 16 | Comparison of threedimensional imaging to transesophageal echocardiography for preoperative evaluation in mitral valve prolapse显示文摘 | M(u)iller L Laufer G | 2006 | Am J Cardiol2006，98，2： | 1 |
| 17 | Mimics of the binding sites of opioid receptors obtained by molecular imprinting of enkephalin and morphine显示文摘 | Andersson L I M/iller R Vlatakis G | 1995 | Proceedings of the National Academy of Sciences1995，92，11： | 1 |
| 18 | Adding Inerpersonal Lering and Taeit knowledge to Mareh's Explonation- Model显示文摘 | Iller M Kent D Zhao Meng | 2006 | Aeadamy of Managment Jounal2006，49，4： | 1 |
| 19 | Placebo- controlled, double-blind, prospective, randomized study on the effect of octreotide LAR in the control of tumor growth in patients with metastatic neuroendocrine midgut tumors: a report from the PROMID Study Group 显示文摘 | Rinke A M/iller HH Schade-Brittinger C | 2009 | J Clin Oncol2009，27，28： | 1 |
| 20 | Tibial eminence fracture、with entrapment显示文摘 | Chandlar JT M iller TK | 1995 | Arthroscopy1995，11，： | 1 |
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