RT Journal Article
T1 Effects of Unloaded Sprint and Heavy Sled Training on Sprint Performance in Physically Active Women
A1 Pareja Blanco, Fernando
A1 Sáez de Villarreal Sáez, Eduardo
A1 Bachero Mena, Beatriz
A1 Mora Custodio, Ricardo
A1 Asián Clemente, José Antonio
A1 Loturco, Irineu
A1 Rodríguez Rosell, David
K1 Resisted sprint training
K1 Female athletes
K1 Sled towing
K1 Acceleration
K1 Athletic performance
AB Purpose: This study aimed to compare the effects of unresisted versus heavy sled sprint training (0% vs 40% body mass [BM]) on sprint performance in women. Moreover, the effects of the aforementioned loads on resisted sprint and jump performance were analyzed. Methods: Twenty-eight physically active women were randomly allocated into 2 groups: unloaded sprint training group (G0%, n = 14), and resisted sprint training with 40% BM group (G40%, n = 14). Pretraining and posttraining assessments included countermovement jump, unloaded 30-m sprint, and 20-m sprint with 20%, 40%, 60%, and 80% BM. Times to cover 0 to 10 (T10), 0 to 20 (T20), 0 to 30 (T30), 10 to 20 (T10–20), 20 to 30 (T20–30), and 10 to 30 m (T10–30) were recorded. Both groups were trained once a week for 8 weeks and completed the same training program, but with different loads (0% vs 40% BM). Results: No significant time × group interactions were observed. For unloaded sprint performance, G0% showed significant (P = .027) decreases only in T10–20, while G40% attained significant decreases in T30 (P = .021), T10–30 (P = .015), and T20–30 (P = .003). Regarding resisted sprint performance, G0% showed significant (P = .010) improvements only for the 20% BM condition. The G40% group attained significant improvements in all loading conditions (20%, 40%, 60%, and 80% BM). Both groups showed significant improvements (P < .001) in countermovement jump height. Conclusions: In physically active women, no significant differences in sprint and countermovement jump performance were detected after 8 weeks of resisted and unresisted sprint training programs. Future studies should, therefore, be devoted to how sprint training should be individualized to maximize performance.
PB Journal Human Kinetics
YR 2020
FD 2020
LK https://hdl.handle.net/10433/25149
UL https://hdl.handle.net/10433/25149
LA en
NO International Journal of Sports Physiology and Performance, Volume 15: Issue 10 Page Range: 1356–1362
NO Departamento: Deporte e Informática
DS RIO
RD May 9, 2026