Results
A total of 97 participants participated in this study. Their characteristics are presented in Table 1. No significant differences in characteristicswere found between groups. The second part of the study comprised 69 of the 97 participants: 16 did not send back the log and could not be
contacted, seven participants had to quit sports because of patellar tendon pain before completing part 2, and five participants could not participate in part 2 because they had surgery (n = 1) or received a platelet-rich plasma injection (n = 4) after part 1 (see Fig. 2 for the flowchart).