Relationships between the ground reaction force during initial sprint acceleration and the vertical force-velocity profile.

ABSTRACT:

Aim

This 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 methods

Thirty-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 obtain

SUBMITTER: Katsuge M 

PROVIDER: S-EPMC12262837 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature