treadmill ergometer

例句：

1. 1. The treadmill ergometer is used to measure the heart rate during exercise.
   跑步机测力计用于测量运动时的心率。
2. 2. The treadmill ergometer was developed to help people with physical disabilities exercise.
   跑步机测力计被开发出来帮助身体有残疾的人锻炼。
3. 3. The treadmill ergometer has become a popular tool for fitness enthusiasts.
   跑步机测力计已经成为健身爱好者的热门工具。