94FIFTY智能感应下比较篮球罚球入篮角度与出手速度研究

A Comparative Study on Angle and Speed Penalty Shot in Basketball under the 94FIFTY Wisdom Sensor

以智慧感应篮球收集运动学参数,并比较罚球出手进球与否,分析入篮角度与出手速度的关系,以此找出影响罚球进球的因素,作为未来以智慧感应篮球在罚球训练时提供立即回馈的应用。方法:15位优秀篮球球员参与本研究,每人进行30次罚球,在每次罚球时均以智能感应篮球收集入篮角度与出手速度,并记录进球与否,最后再以相依样本t检验,进行进球与未进球的差异比较。结果:罚球进球的入篮角度(39.3±5.7)度显著大于未进球的入篮角度(35.0±5.5)度,但出手速度二者间没有差异。结论:在固定投篮距离的罚球动作,越大的入篮角度可以增加罚球命中率,并可利用具有良好信度的智慧感应篮球,在实际进行训练时给予入篮角度的实时回馈,修正投篮细部动作。

Based on collect kinematics parameters of smart induction basketball, the study compared the goals of free throw,analyzed the difference between the angle and the speed of shot, so as to find out the factors affecting the goals of free throw, and provide immediate feedback for the future application of smart induction basketball in free throw training. The Methods are as follows:Fifteen excellent basketball players participated in this study and each took 30 free throws;At each free throw, the data of the angles and the speeds of the shot was collected by intelligent induction, with whether the goal was scored or not recorded;Finally, the difference between the goal and the non-goal was compared with the dependent sample t test. The Result shows that the angle of free throw scoring(39.3 + 5.7 degrees) was significantly higher than that of non-scoring(35.0 + 5.5 degrees), but there was no difference in the speed of shot between the two. In conclusion, the bigger the angle of shot, the higher the percentage of free throw hit in the fixed shooting distance free throw action, and moreover, making full use of the sensor, the player can get real-time feedback on the angle of shot in real training, and revise the shooting details.