It is essential to note that there are principal differences between the studies by McAllister et al, Huffman et al, and the present report. In the cohort collected at the University of California–Los Angeles, injury history was not taken into consideration. Although injury history was considered in the later NCAA cohort,history was not clearly defined and only athletes cleared for participation were included. Therefore, the sample size for the previous cohort of athletes with no history of injury (n = 244) was significantly larger than the current study (n = 28) and may have contributed to the differences observed between groups. In addition, the substantially larger sample size for the no history group suggests that the athletes may have only been asked to recall injury history information within a specified time frame. Hence, the importance of investigating the influence of participation status, time since last injury, and injury severity.