plyometrics       
noun [ U ] uk/ˌplaɪ.əˈmet.rɪks/ us/ˌplaɪ.əˈmet.rɪks/
 增强式训练
exercises that involve a jumping movement to increase the strength and power of the muscles
  He hired a speed coach and three times a week did plyometrics and resistance work. 他雇了一个速度教练,每周做三次增强式训练和抗阻力训练。 
 I focus more on plyometrics - exercises that combine speed and strength work to improve explosive power, agility and reflexes.  我更注重于增强式训练——结合速度和力量训练来提高爆发力、敏捷性和反应能力。 
 - More examples
 - He took up yoga and plyometrics and hasn't had any further problems with his back.
 - Athletes use plyometrics, also known as jump training.
 - He will happily discourse at length on the benefits of plyometrics, the explosive push-up routine which he claims "has increased my strength and power".