Abstract
The purpose of this study was to investigate the relationships between CHU-Test performance and the number of high-intensity accelerations or decelerations performed during soccer matches. The participants consisted of 16 male university soccer players, who were 19.3 ± 0.9 years, attaching GPS devices during both CHU-Test and soccer matches. The number of high-intensity accelerations ( ≥ 3 m/s²) and decelerations ( ≤ -3 m/s²) was determined from GPS data during both CHU-Test and soccer matches. The CHU-Test performance was 17.9 ± 3.1 times. The number of high-intensity accelerations during soccer matches was 51.6 ± 16.0 times, while the number of high-intensity decelerations was 41.0 ± 12.0 times. Significant correlations were observed between CHU-Test performance and the number of high-intensity accelerations during full-time soccer matches (r=0.83) as well as the number of high-intensity decelerations (r=0.65) (p<0.05). Furthermore, CHU-Test performance showed significant correlations with the number of high-intensity accelerations (r=0.74) and decelerations (r=0.52) during the peak 5-minute period and with the number of high-intensity accelerations during the last 15-minute period of matches (r=0.82) (p<0.05). These results indicate that CHU-Test performance reflects the number of high-intensity accelerations and decelerations performed during soccer matches.