As long as you insist on 50 to 100 every night, there is no need to be very standard. As long as your body is not bent or straight, you can take it slowly, preferably quickly, even if it breaks out. This is a good exercise for your biceps and chest and abdomen muscles. I have eight abdominal muscles now, but because I haven't done it for a long time, 7 and 8 have begun to degenerate. I hope you are in good shape.
If you are a woman, it is good to do more waist exercises. ...
Remember not to sit for a long time. Sitting for a long time is not good for your health.