Sit-ups may have negative effects on the body? However, throughout the major primary and secondary schools and gyms in China, most of them insist on doing sit-ups. Almost everyone who comes to the gym will do sit-ups, some on the ground and some on the abdominal muscles. Children do well because of their small weight, but for adults who weigh more than 100 kg, the damage to the neck and waist is the greatest. Generally speaking, our waist should not bear more than 3400 newtons. However, in a study, it was found that just halfway through sit-ups, the pressure on the spine reached 3400 N. To make matters worse, sit-ups make the spine in a "flexion" or "bending" state. Losing the neutral spinal posture will make the intervertebral disc more fragile, which may lead to lumbar disc herniation in the long run.
On August 30th, 2065438+00, it was reported that the training situation of American recruits was quietly changing. Different from the past, the traditional training programs such as sit-ups that are familiar to you on weekdays are hard to see, yoga and Pilates have been replaced, and the training intensity of traditional events such as long-distance running has gradually weakened.
This year, such reports have reappeared, indicating that the US military has plans to abolish this kind of physical training. American military experts said: Some sports are out of date, and training abdominal muscles with sit-ups is now considered as one of the main causes of low back injuries. Moreover, the Canadian army has cancelled sit-ups training. The US Marine Corps is expected to completely abolish this action this year!
A health examination in the United States also showed that 56% of soldiers suffered back injuries due to long-term sit-ups. The Canadian military has cancelled sit-ups from the soldier training catalogue and used sandbags weighing 44 pounds (about 40 kilograms) for exercise. A professor at a Canadian university said that many studies have shown that sit-ups will press the spine, and doing this for a long time will press the nerves and cause pain, which in turn will cause lumbar disc herniation.