Morosi C, La Torre A, Sartor F
Department of Biomedical Sciences for Health, Milan University, Milan, Italy -
J Sports Med Phys Fitness. 2015 Dec;55(12):1565-70. Epub 2014 Jul 7.
This study aimed to characterize Supermoto performance by correlating the fastest lap (best performance) with heart rate (HR), anthropometric characteristics, racing experience and the ratings of perceived exertion (RPE) of riders.
Twenty Supermoto riders - data are shown as mean value±standard deviation (SD), age: 29±9 years, BMI: 23.0±2.4, riding experience: 4±3 years - performed 12 laps on a circuit 1167 m long, without off-road part, but data were available for 16 riders. The HR was monitored throughout all laps, RPE was asked at the end of the race. The fastest rider wore a portable metabolic unit to assess the aerobic load of Supermoto riding.
The HRmean was related to the best performance (r=0.747, P<0.001). The correlation between HR and the best performance was not mediated by racing experience, even though the latter correlated negatively with lap times (r=-0.548, P<0.050). The RPE and anthropometric characteristics did not correlate with best performance. Average-to-slow riders showed a higher HR than fastest riders (delta-HRmean: 20 beats·min(-1), P=0.010). The aerobic load during Supermoto riding was 4.29±1.50 METs (at 60% of HRmax) and a mean VO2 1142±398 mL·min-1. During the race simulation the rider had a HR 15% higher than during the lap with the metabolic unit, hence a mean MET around 5.3 was estimated during the race.
In conclusion, HR reflects performance in Supermoto racing independently from racing experience and it is lower in faster riders. Elevated HR seems not to be explained entirely by the aerobic load.
本研究旨在通过将最快单圈成绩（最佳表现）与心率（HR）、人体测量特征、赛车经验以及车手的主观用力程度分级（RPE）相关联，来描述超级摩托车比赛的表现特征。
20名超级摩托车车手——数据以平均值±标准差（SD）表示，年龄：29±9岁，体重指数（BMI）：23.0±2.4，骑行经验：4±3年——在一条1167米长、无越野路段的赛道上完成12圈骑行，但仅获得了16名车手的数据。在所有圈次中监测心率，比赛结束时询问主观用力程度分级。最快的车手佩戴便携式代谢单元以评估超级摩托车骑行的有氧负荷。
平均心率与最佳表现相关（r = 0.747，P < 0.001）。心率与最佳表现之间的相关性不受赛车经验的影响，尽管赛车经验与单圈时间呈负相关（r = -0.548，P < 0.050）。主观用力程度分级和人体测量特征与最佳表现无关。平均速度至较慢速度的车手心率高于最快的车手（平均心率差值：20次·分钟-1，P = 0.010）。超级摩托车骑行期间的有氧负荷为4.29±1.50梅脱（相当于最大心率的60%），平均摄氧量为1142±398毫升·分钟-1。在比赛模拟过程中，车手的心率比佩戴代谢单元的那一圈高15%，因此估计比赛期间平均梅脱约为5.3。
总之，心率独立于赛车经验反映超级摩托车比赛中的表现，且速度较快的车手心率较低。心率升高似乎不能完全由有氧负荷来解释。
