Abdominal muscles are more direct and sit-ups are soft. Since you specifically asked for this, I will explain it in detail later.
Two muscles of the arm, triceps bench press can take into account the sitting posture of biceps, and the bending degree is similar.
On the back, it is suggested that two people do pull-ups and bend over to row.
As for the thigh squat, squat to death, squat with weight, it is best not to use dumbbells to make do.
In terms of strength, Baidu rm 12 according to this strength, three groups of explosions, one group of rm5 strength and two groups of rm20 endurance (squats and sit-ups will be naked and soft).
The skeletal muscle in the same place has been practiced several times in the first five days, and the muscle has been released for three days. The next two days will see how you feel every day. Either you are a governor-level talent, or you have never practiced at all. Abdominal muscles are different from skeletal muscles, as long as they are not torn, they can be done every day after the next day.
Be careful not to squat at least three times at the beginning, otherwise you will feel the pain of walking hard the next day, and start to rest for three days, at least get used to it and leave at least two days of buffer.
If you want to attack the abdominal muscles, you must ensure the strength between the particularity of the abdominal muscles. You don't have to rest for a long time. Two days of practice is not an extra day. No, it depends more on your willpower.
Let's start with 40×4. The rest between groups is shorter than 30 s, and after 60×5, do Baidu abdominal muscles for 8 minutes from the intermediate level, once in the morning and once in the evening. After the advanced level, beautiful abdominal muscles came out.
About reducing fat and increasing muscle, it must be reduced first and then increased, but abdominal muscle sit-ups can also reduce fat as long as the base is large enough. It depends on whether you weigh and run for 30~40 minutes before training (20 minutes is the cut-off point of burning fat, which can basically be considered as running in vain). The effect is much better depending on whether you can persist.