Astronaut training is a long journey through constant challenges, tests, inspections and assessments. Out-of-cabin training is the most important item, and it is also a high-intensity and high-load training.
Astronauts have to simulate the cabin scene in underwater training on the ground, wearing 200 kilograms of underwater training clothes, training for six or seven hours. Astronaut Tang Hongbo's recollection, when he first started underwater training, he "couldn't even hold chopsticks" when he ate after training. Wang Yaping, as the first female astronaut in China, also mentioned the requirements for strength in underwaterTraining.