And if the stretching is not in place, muscle legs may be formed. There are strict standards for the adjustment of bicycles, posture and movements when riding. Bad adjustment of bicycle angle will directly affect riding posture.
In the 40-50-minute riding class, repeating the wrong riding posture and some fancy movements will not only greatly reduce your training effect, but also cause stress and injury to your knee joint and waist.
Moreover, sonic boom music for a long time may damage your eardrum.
So in contrast, aerobic exercise is better. Can exercise to the whole body muscles, generally have a full stretch position. Sticking to exercise will improve the overall shape.
So I suggest you choose aerobics.
I hope it helps you.