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| 1 | Three-dimensional impact kinetics with foot-strike manipulations during running显示文摘Background: Lack of an observable vertical impact peak in fore/mid-foot running has been suggested as a means of reducing lower extremity impact forces, although it is unclear if impact characteristics exist in other axes. The purpose of the investigation was to compare three-dimensional(3 D) impact kinetics among foot-strike conditions in over-ground running using instantaneous loading rate–time profiles.Methods: Impact characteristics were assessed by identifying peak loading rates in each direction(medial–lateral(ML), anterior–posterior(AP),vertical, and 3 D resultant) following foot-strike instructions(fore-foot, mid-foot, subtle heel, and obvious heel strike). Kinematic and kinetic data were analyzed among 9 male participants in each foot-strike condition.Results: Loading rate peaks were observed in each direction and foot-strike condition, differing in magnitude by direction(3 D resultant and vertical > AP > ML, p ≤ 0.031) and foot-strike: ML(fore-foot and mid-foot strike > obvious heel strike, p ≤ 0.032), AP(fore-foot and mid-foot strikes > subtle-heel and obvious heel strikes, p ≤ 0.023). In each direction, the first loading rate peak occurred later during heel strike running relative to fore-foot(p ≤ 0.019), with vertical and 3 D resultant impact durations exceeding shear(ML and AP, p ≤ 0.007) in each condition.Conclusion: Loading rate–time assessment identified contrasting impact characteristics in each direction and the 3 D resultant following foot-strike manipulations, with potential implications for lower extremity structures in running. | Andrew D. Nordin Janet S. Dufek John A. Mercer | 2017 | Journal of Sport and Health Science2017，6，4： | 2 |
| 2 | The evaluation and prediction of impact forces during landings显示文摘 | Dufek J S Bates B T | 1990 | Med Sci Sports Exerc1990，22，： | 1 |
| 3 | Effects of over-weight and obesity on walking characteristics in adolescents 显示文摘 | Dufek J S Currie R L Gouws P L | 2012 | Hum Mov Sci2012，31，4： | 1 |
| 4 | Contributions of lower extremity joints to energy dissipation during landings显示文摘 | Zhang Songning Bates B T Dufek J S | 2000 | Med Sci Sports Exerc2000，32，： | 1 |
| 5 | Das kubische tantalmononitrid (B1-Typ) und seine mischbarkeit mit den isotypen (bergangs metallnitriden und-carbiden 显示文摘 | Dufek G Ettmayer P | 1975 | Monatshe f黵 Chemie1975，106，： | 1 |
| 6 | Contributions of lowe extremity joints to energy dissipation dur ing landing显示文摘 | Song-Ning Zhang B T Bates J S Dufek | 2000 | Med Sci Sports Exerc2000，32，： | 1 |
| 7 | Biomechanical factors associated withinjury during landing in jump sports显示文摘 | DUFEK J S BATES B T | 1991 | Sports Med1991，12，： | 1 |
| 8 | Biomechanical Factor Associated With Injury During Landing in Jump Sports 显示文摘 | DUFEK S BATES T | 1991 | Sports Medi-cine1991，12，5： | 1 |
| 9 | Effects of foot strike on low back posture,shock attenuation,and comfort in running显示文摘 | Delgado TL Kubera-Shelton E Robb RR Hickman R Wallmann HW Dufek JS | | 0，，： | 1 |
| 10 | Fluorinated phosphazene co-solvents for improved thermal and safety performance in lithium-ion battery electrolytes显示文摘 | Harry W. Rollins Mason K. Harrup Eric J. Dufek David K. Jamison Sergiy V. Sazhin Kevin L. Gering Dayna L. Daubaras | 2014 | Journal of Power Sources2014，，： | 1 |
| 11 | Bilateral performancesymmetry during drop landing : a kinetic analysis 显示文摘 | Schot P K Bates B T Dufek J S | 1994 | Medicine and science in sports and exercise1994，26，： | 1 |
| 12 | Biomechanical factors associated with injury during landing in jump sports显示文摘 | DUFEK J S BATES B T | 1991 | Sports Med1991，12，5： | 1 |
| 13 | Applications of Engel and Voskos Generalized Gradient Approximation in Solides 显示文摘 | Dufek P Blaha P Schwarz K | 1994 | Phys Rev B1994，50，11： | 1 |
| 14 | Recurrent miller fisher syndrome with abnormal terminal axon dysfunction:a case report显示文摘 | Tomcík J Dufek M Hromada J | 2007 | Acta Neurol Belg2007，107，4： | 1 |
| 15 | Biomechanical factors associated with injury during landing in jump sports显示文摘 | Dufek JS Bates BT | | 0，，05： | 1 |
| 16 | Synthesis of halogenated phenyl glycidyl ethers and their use for flame retardancy of polymeric materials显示文摘 | Hor á k O Eichler J Dufek J | | 0，，01： | 1 |
| 17 | Tumor markers in the diagnois tumors in the subhepatic area显示文摘 | Dufek V Petrtyl J Klener P | 1994 | Vnitr Lek1994，40，6： | 1 |
| 18 | Excimer laser in situ keratomileusis显示文摘 | KREMER K B DUFEK M | 1995 | J Refract Surg1995，11，： | 1 |
| 19 | Isolation and quantitation of phosphatidylcholine by reversed-phase liquid–liquid extraction显示文摘 | Jan Hradec Petr Dufek | 1997 | Journal of Chromatography B: Biomedical Sciences and Applications1997，，1： | 1 |
| 20 | Intestinal first-pass metabolism by cytochrome P450 and not P-glycoprotein is the major barrier to amprenavir absorption显示文摘 | Dufek MB Bridges AS Thakker DR | 2013 | Drug Metab Dispos2013，41，9： | 1 |
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