ArticlePloS one2025
Relationships between the ground reaction force during initial sprint acceleration and the vertical force-velocity profile.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
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Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThis study examined the relationships between the ground reaction force (GRF) during sprint acceleration and lower-limb mechanical capabilities derived from the vertical force-velocity (F-V) profile. MATERIALS AND
methodsThirty-one male collegiate baseball players performed 15-m sprint accelerations. The mean horizontal and resultant GRFs and leg extension velocities in the propulsive phase were calculated for the first, fifth, and ninth steps during sprint acceleration. From the F-V profile estimated by squat jumps under 5-6 loading conditions (0-100 kg), the theoretical maximum force (F0), velocity (V0), power (Pmax), and dynamic lower-limb strength corresponding to the leg extension velocities at each step during sprint acceleration (F1st, F5th, and F9th) were obtained. Correlations between GRFs during sprint acceleration and F-V profile-derived variables were examined.
resultsF0 moderately to largely correlated with the horizontal GRFs for all steps (r = .359 to .543; P = .002 to .047). Pmax moderately correlated with the horizontal GRFs for the fifth and ninth steps (r = .357 and .448; P = .049 and .011, respectively) and resultant GRF for the ninth step (r = .380; P = .035). No significant correlations existed between dynamic lower-limb strengths and GRFs, except for F1st and resultant GRF for the first step (r = .364; P = .045).
conclusionsGreater lower-limb maximal strength and power contribute to a greater horizontal GRF generation in the entire and latter early phases of sprint acceleration, respectively. Thus, strength training tailored to neuromuscular demands for each step may be effective for enhancing sprint acceleration performance.
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