Vinogradova O.P.
Russian Presidential Academy of National Economy and Public Administration, Saint Petersburg

Morozova L.V.
Russian Presidential Academy of National Economy and Public Administration, Saint Petersburg

Melnikova T.I.
Russian Presidential Academy of National Economy and Public Administration, Saint Petersburg

Objective of the study is to identify the kinematic parameters of running steps that determine the effective achievement of the starting run-up speed by sprinters.
Methods and structure of the study. The subjects, 23 student athletes (age 22.6±3.2 years; weight 77.6±7.4 kg; height 1.78±0.03 m), involved in track and field, performed six 10-meter sprint tests, filmed on video for subsequent kinematic analysis. The correlation coefficient of the kinematic parameters of running steps and running speed during the starting segment of the sprint distance was calculated.
Results and conclusions. The expediency of differentiated work on increasing the length of the sprinters' running stride in balance with the parameters of step frequency, contact time with the support and the time of the unsupported phase, which also characterize the deepening of morphofunctional restructuring that determines the effectiveness of increasing the starting speed, is confirmed.

Keywords: sprinting, starting run, acceleration, kinematic indicators.

1. Bakaev V.V., Punich S.V., Vasilyeva E.A., Ponimasov O.E. Optimizaciya processov vosstanovleniya legkoatletov bioenergeticheskimi sredstvami [Optimization of recovery processes of track and field athletes by bioenergetic means]. Teoriya i praktika fizicheskoy kultury. 2024. No. 8. Pp. 19-21. 
2. Bakaev V.V., Ponimasov O.E., Vasilyeva V.S., Punich S.V. Parametry trenirovochnyh nagruzok v gornom bege kak faktor upravleniya trenirovochnym processom [Parameters of training loads in mountain running as a factor in managing the training process]. Teoriya i praktika fizicheskoy kultury. 2024. No. 2. Pp. 9-11. 
3. Bolotin A.E., Ponimasov O.E., Aganov S.S., Ryzhkin N.V. Selektivnost vosproizvedeniya obraznyh predstavleniy v trenirovochnom processe legkoatletov-studentov [Selectivity of reproduction of imagery in the training process of student athletes]. Teoriya i praktika fizicheskoy kultury. 2022. No. 1. Pp. 51-53. 
4. Vinogradova O.P., Morozova L.V., Melnikova T.I., Ponimasov O.E. Korrekciya polozheniya tulovishha legkoatletok-sprinterov na osnove izmeneniya posturalnogo balansa [Correction of the torso position of female sprinters based on changes in postural balance]. Teoriya i praktika fizicheskoy kultury. 2024. No. 1. Pp. 31-33. 
5. Kolesnikov N.V., Ponimasov O.E., Fursov V.V., Striga S.I. Faktornaya struktura predsorevnovatelnoy podgotovki skorohodov vysokoy kvalifikacii [Factor structure of pre-competition training of highly qualified speed walkers]. Teoriya i praktika fizicheskoy kultury. 2023. No. 7. Pp. 90-92.