isometric training

例句：

1. 1. This type of traininghelps improve muscle strength and endurance.
   这种训练有助于提高肌肉力量和耐力。
2. 2. Isometric training is often used in sports tohelp prevent injuries.
   等长训练常用于体育中，以帮助预防受伤。
3. 3. During therecovery phase, athletes can benefit from isometric training to reduce soreness andinflammation.
   在恢复阶段，运动员可以通过等长训练来减轻疼痛和炎症。