Changes in Velocity Decrement at Different Phases of a 30-Meter Resisted Sprint
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14510%2F25%3A00141702" target="_blank" >RIV/00216224:14510/25:00141702 - isvavai.cz</a>
Result on the web
<a href="https://journals.muni.cz/studiasportiva/article/view/40620" target="_blank" >https://journals.muni.cz/studiasportiva/article/view/40620</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5817/StS2025-2-4" target="_blank" >10.5817/StS2025-2-4</a>
Alternative languages
Result language
angličtina
Original language name
Changes in Velocity Decrement at Different Phases of a 30-Meter Resisted Sprint
Original language description
Resisted sprint training is one of the most studied methods for developing speed capabilities, especially for elite-level athletes. While traditional sled training relies on a fixed load based on the percentage of body mass, recent research suggests that resistance based on velocity decrement (Vdec) may be a more practical option. This study examines whether Vdec at a given resistance remains consistent or varies across different phases of a 30 m sprint. Twelve male participants with a speed-focused training history were involved in this study. Participants performed 30 m sprint trials, with time splits recorded at 10 m intervals (0–10 m, 10–20 m, 20–30 m) and additional segmental analysis for distances 0–20 m, 10–30 m and the entire 0–30 m sprint. Each participant completed two repetitions at five different resistance levels provided by a cable-driven motorised resistance system (1080 Sprint). The analysis of horizontal force-velocity-power parameters showed moderate variation in force generation of the subjects, with an average theoretical maximal force of 6.33 ± 0.85 N/kg and a relatively consistent maximal velocity of 9.39 ± 0.42 m/s. The study revealed a statistically significant difference in % Vdec (p ≤ 0.05) across different sprint phases, with higher resistance leading to increased differences in the individual phases of the run. Segmental analysis showed a greater % Vdec as sprint distance increased across all resistance levels. These findings highlight the need for a deeper understanding of resisted sprint training for more effective speed development.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
30306 - Sport and fitness sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Studia Sportiva
ISSN
1802-7679
e-ISSN
2570-8783
Volume of the periodical
19
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
10
Pages from-to
41-50
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-105012225058