Insait K1 Performance Analysis System was employed to collect data of the heart rate and running-related indicators of 12 collegiate football players in eight official matches, for the purpose of evaluating their external and internal match load. Main results include: (1) In terms of external load, college football players ran an average of 8464±822m in formal matches, of which jogging distance accounted for 39.8%, low-speed running distance accounted for 30.2%, high-intensity running distance accounted for 5.1%, and the average number of high-intensity running was 30±14 times per game; in terms of internal load, the average heart rate of players in the game was 160±11 times/min, 52% of the game time was above 80% of the maximum heart rate, and only 14.5% of the game time was below 70% of the maximum heart rate. (2) The defender ran a total distance significantly shorter than the midfield (ES=1.2, P>95%) and the forward (ES=1.4, P>95%), the average interval of his high-intensity running was moderately longer than the midfield (ES=0.6, P>75%) and the striker (ES=0.9, P>75%). But his time in the range of the high-intensity heart rate was moderately shorter than the midfield. (ES=1.0, P>95%) and the forward (ES=1.1, P>75%). The maximum running speed (ES=0.7, P>75%), walking distance (ES=0.8, P>75%), jogging distance (ES=0.6, P>75%) and the medium intensity heart rate interval (ES=0.7, P>75%) of the forward player in the game was moderately higher than the midfielder, while the low-speed running distance (ES=0.8, P>75%) and average heart rate (ES=0.6, P>75%) and high intensity heart rate interval (ES=0.6, P>95%) are all moderately lower than midfielders. |