It's very complicated to say, to explain it a little, that is, "anaerobic exercise refers to the high-speed strenuous exercise of muscles under the condition of insufficient oxygen." Anaerobic exercise is mostly exercise with high load intensity and strong immediacy, which is difficult to last and the time of fatigue elimination is slow. "Most people can't reach it, including some sports that men do in the gym.
For example, some thin people can do 50 push-ups and 30 pull-ups in a row. Because of their light weight, they basically do aerobic exercise. Similarly, when practicing instruments, they use light weight and don't even use iron.
In addition, lines obviously have little to do with aerobic or anaerobic exercise. As long as the body fat rate is low, lines will be drawn.
The last possibility is that these people who use equipment may regard walking, running and cycling on the fitness road as warm-up and the exercise on the way home as aerobic exercise, while the average person's exercise steps are-warm-up-anaerobic exercise-aerobic relaxation, only the difference in quantity.