Before revision:  Larger decreases in activity were associated with a decreased injury risk to a minimum of 1.5\% . Larger increases in activity were associated with an increased injury risk, from 3\% up to a maximum of 6\% at ACWR = 5. Girls were at significantly higher risk of injury than boys.
After revision:  Larger decreases in activity were associated with a decreased injury risk to a minimum of 1.5\% at ACWR=0). When activity increased by more than 50\% (ACWR > 1.5), injury risk was higher ( maximum of 6\% at ACWR = 5. Girls were at significantly higher risk of injury than boys.