2. Generally speaking, fitness needs the consistency of ideas, trying to feel the strength of muscles, and feeling the saturation, fatigue and exhaustion of muscles. I think you may not have done this, let too many muscles in other parts participate in the exercise, resulting in a decline in training effect and no pain.
3, abdominal muscle tearing Finally, there is abdominal muscle soothing stretching action, which can reduce muscle soreness. Maybe you have excellent physique and strong toughness. Also, abdominal muscles are non-fatigue muscles, not to say that they will not be tired, but will recover faster, and they need to have a larger weight when exercising (don't be afraid to increase the weight when practicing abdominal muscles).