Scanlan Aaron T, Stanton Robert, Sargent Charli, O'Grady Cody, Lastella Michele, Fox Jordan L
Int J Sports Physiol Perform. 2019 Nov 1;14(10):1331-1337. doi: 10.1123/ijspp.2018-0906.
To quantify and compare internal and external workloads in regular and overtime games and examine changes in relative workloads during overtime compared with other periods in overtime games in male basketball players.
Starting players for a semiprofessional male basketball team were monitored during 2 overtime games and 2 regular games (nonovertime) with similar contextual factors. Internal (rating of perceived exertion and heart-rate variables) and external (PlayerLoad and inertial movement analysis variables) workloads were quantified across games. Separate linear mixed-models and effect-size analyses were used to quantify differences in variables between regular and overtime games and between game periods in overtime games.
Session rating-of-perceived-exertion workload (P = .002, effect size 2.36, very large), heart-rate workload (P = .12, 1.13, moderate), low-intensity change-of-direction events to the left (P = .19, 0.95, moderate), medium-intensity accelerations (P = .12, 1.01, moderate), and medium-intensity change-of-direction events to the left (P = .10, 1.06, moderate) were higher during overtime games than during regular games. Overtime periods also exhibited reductions in relative PlayerLoad (first quarter P = .03, -1.46, large), low-intensity accelerations (first quarter P = .01, -1.45, large; second quarter P = .15, -1.22, large), and medium-intensity accelerations (first quarter P = .09, -1.32, large) compared with earlier periods.
Overtime games disproportionately elevate perceptual, physiological, and acceleration workloads compared with regular games in starting basketball players. Players also perform at lower external intensities during overtime periods than earlier quarters during basketball games.
量化并比较常规比赛和加时赛中的内部和外部负荷，并研究与加时赛其他时段相比，加时赛期间男性篮球运动员相对负荷的变化。
对一支半职业男子篮球队的首发球员在2场加时赛和2场常规比赛（非加时赛）中进行监测，这些比赛具有相似的背景因素。在各场比赛中对内部（主观用力程度评分和心率变量）和外部（运动员负荷和惯性运动分析变量）负荷进行量化。使用单独的线性混合模型和效应量分析来量化常规比赛和加时赛之间以及加时赛各比赛时段之间变量的差异。
主观用力程度评分负荷（P = 0.002，效应量2.36，非常大）、心率负荷（P = 0.12，1.13，中等）、向左的低强度变向事件（P = 0.19，0.95，中等）、中等强度加速（P = 0.12，1.01，中等）以及向左的中等强度变向事件（P = 0.10，1.06，中等）在加时赛期间高于常规比赛期间。与较早时段相比，加时赛各时段的相对运动员负荷（第一节P = 0.03，-1.46，大）、低强度加速（第一节P = 0.01，-1.45，大；第二节P = 0.15，-1.22，大）和中等强度加速（第一节P = 0.09，-1.32，大）也有所降低。
与常规比赛相比，加时赛使首发篮球运动员的感知、生理和加速负荷不成比例地增加。球员在加时赛期间的外部强度也低于篮球比赛的较早时段。
