Gender-Related Differences in Mechanics of the Sprint Start and Sprint Acceleration of Top National-Level Sprinters Mirkov, Dragan M. Knezevic, Olivera M. García Ramos, Amador Coh, Milan Šarabon, Nejc Force–velocity relationship Force platform Kinematics Kinetics Track and field (1) Background: Within the current study we aimed at exploring gender-related di erences and the relationship between sprint start block kinematics and kinetics and sprint acceleration force–velocity (F-v) relationship parameters (maximal force [F0], maximal velocity [v0], maximal power [Pmax] and slope) in top national-level sprinters. (2) Methods: Twenty-eight sprinters (6 females) performed 10 maximal 30-m sprints. Start block and acceleration kinematics and kinetics were collected with an instrumented sprint start block and a laser distance sensor (KiSprint system). Displacement-time data were used to determine the F-v relationship through Samozino’s method. (3) Results: Start block rear foot maximal force (e ect size [ES] = 1.08), rate of force development (ES = 0.90–1.33), F0 (ES = 1.38), v0 (ES = 1.83) and Pmax (ES = 1.95) were higher in males than in females (p 0.05). There were no di erences in the slope, and ratio of horizontal-to-resultant force. F0, v0, and Pmax generally presented higher correlations with the start block kinetics (median r [range] = 0.49 [0.28, 0.78]) than with the kinematics (median r [range] = -0.27 [-0.52, 0.28]). (4) Conclusions: We confirmed that sprint block phase and sprint acceleration mechanics should be mutually assessed when analyzing sprinting performance. KiSprint system could provide more accurate information regarding mechanical pattern and technique during sprint initiation and acceleration, and potentially help create a more personalized and e ective training program. 2020-12-11T11:36:35Z 2020-12-11T11:36:35Z 2020-09-04 info:eu-repo/semantics/article Mirkov, D. M., Knezevic, O. M., Garcia-Ramos, A., Čoh, M., & Šarabon, N. (2020). Gender-related differences in mechanics of the sprint start and sprint acceleration of top national-level sprinters. International journal of environmental research and public health, 17(18), 6447. [doi:10.3390/ijerph17186447] http://hdl.handle.net/10481/64834 10.3390/ijerph17186447 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Mdpi