We all have times when we don’t want to go out for a run and go to the gym. And when we are in a narrow living area, how do we achieve the same fitness effect? You can try it this way. Modified sit-ups exercise parts: core muscle groups exercise method: lying flat on the ground, hands and feet naturally separate, the body stands up, with the right hand hooked left foot, both sides repeatedly alternate. To 20 as a group. Single-leg lift Exercise parts: thighs, buttocks Exercise method: lying in front of your sofa, one foot stirrup on the sofa, one foot up, hands naturally open, brace the ground, with the strength of the core muscle groups as well as the strength of the hips to lift the hips up. Legs should be kept upright.