摘要：This study quantified the time expended with each exercise intensity domain during an official wheelchair basketball (WB) match. Ten male WB players (30.5 ± 7.9 yrs) participated in an adapted incremental field test for the determination of heart rate (HR), and first and second lactate threshold (LT1 and LT2, respectively). After, the athletes played official matches with continuous monitoring of HR, in which was determined the time expended during each exercise intensity domain (moderate, heavy, and severe) from HR in the LT1 and LT2. No significant differences between the three exercise intensity domains were found when time was expressed in absolute and relative values (P>0.05). The velocity at LL1 was positively associated with the relative time expended during the moderate exercise intensity, but inversely associated with the heavy domain. In conclusion, time expended in moderate, heavy, and severe exercise intensities is similar (~33%). But, athletes with better aerobic conditioning are able to remain a longer time at moderate exercise intensity, while athletes with poor aerobic conditioning spend more time at the heavy exercise intensity.
