human
Which is more effective: a stationary bike or an elliptical trainer?
assistant
The best answer to this question depends on your fitness level and goals. A stationary bike can be a great way to build up strength, endurance, and cardiovascular health. Elliptical trainers are also very effective for improving aerobic capacity, but they may not provide the same amount of resistance training as a stationary bike. Ultimately, it's important to find what works best for you in order to reach your fitness goals.