Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean 95th percentile linear (A,B) and rotational (C,D) acceleration measured during practices (A,C) and games (B,D) within the four time frames by quartile. Vertical bars represent the standard error. Time of season had a significant effect on linear (p = 0.01) and rotational (p = 0.01) acceleration in games. Time of season and exposure group had a significant interaction effect on linear (p = 0.05) and rotational (p = 0.04) acceleration in games.
