Starting from the deputy company commander of the Soldier Assault Team

The daily grind kept the recruits' bodies constantly adapting. Things like walking in an S-shape around the mess hall before meals and running around the camp in quick changes of direction for half an hour after meals left no room for their vestibule or digestive system to relax.

There are also drills involving changing direction, and training new recruits who get carsick to turn quickly, shake their heads in place, and turn their heads left and right. The commands are given so fast that you'll question your existence. The main goal is to train them to be able to shake their heads without getting dizzy and turn without swaying.

Also, when traveling by vehicle, no matter what kind of vehicle it is or where a new recruit gets carsick, let them sit there. They do it every day, and eventually they get used to it.

The ultimate ruthless tactic: if you get carsick during tank training, then you have to go without food or water for a whole day. Of course, this method is for new recruits who get particularly carsick and are slow to get the hang of the training.

This is the ultimate method of desensitization.

They spent the entire day inside the armored vehicle, training alongside it on mountainous, bumpy roads. They were only given a small amount of warm water during the day, and were not given any food to avoid putting a strain on their stomachs. The vehicle never stopped, and the people never got out.

This method is basically effective after just one use, and everyone who has used it says it's great. Patients say that after getting through this day, they'll never get motion sickness again.

However, stubborn Chinese people never think they have any allergies and spend their lives unconsciously on the path of desensitization.

Drinking alcohol makes your face flush; eating cantaloupe makes your throat uncomfortable because it's too sweet; drinking milk gives you diarrhea because you have a sensitive stomach...

Motion sickness, to put it simply, is an allergy.

……

Soon, Xu Sanduo's good days began.

In a corner of the Steel Seventh Company's training ground, there are two rows of fixed double-axis wooden planks. Many new recruits thought they were two rows of swings when they first joined the company.

Actually, they look pretty much the same, except that the double-axis wave log is many times larger than the swing. The main frame is made of 50mm steel pipes welded together, with a wall thickness of half a centimeter, making it extremely resistant to bending and impact.

Furthermore, the stepping wood is basically made from a single piece of old elm wood, about four meters long and thirty to thirty-five centimeters in diameter. The surface is engraved with anti-slip ridges, and the ends are covered with sheet metal. Through-bolts penetrate the wood, and it is suspended from the support frame by four steel cables.

Zhang Anbang was also shocked when he first saw it. In his previous life, he had heard from veterans in the army that the driftwood from the millennium was different from the driftwood when he joined the army. And it was indeed very rough.

Their original wooden platform was made of wood, and by adjusting the damping of the pivot shaft and increasing the swing frequency/sway angle, they could precisely control the intensity of vestibular stimulation.

Nowadays, most grassroots training equipment is non-combat light equipment and has not been included in the unified mass production and distribution system of the entire army.

Most of them were made by battalion-level repair shops, engineer companies, or company-level engineer squads using locally sourced materials, in accordance with the regulations in the "Manual for the Production and Maintenance of Training Equipment for Grassroots Units" issued by the General Logistics Department.

For example, there are regulations for double-axis driftwood: the driftwood should be made from whole pieces of hard broad-leaved trees that are over 15 years old, with a diameter of 30-35cm and a length of 4-5m, without splicing or insect infestation, and the axle should be fitted with an iron sleeve and fixed with a through bolt.

As for the single-axis wave log, its simple back-and-forth arc swing centered on a single longitudinal axis is too simplistic and unsuitable for the training ground of the Steel Seventh Company.

At this moment, Xu Sanduo stood trembling on the wooden platform, stretching out his two hands and trying his best to maintain his balance, while Wu Liuyi stepped on the platform to help him.

The driftwood swung forward sharply, accompanied by a sway to the left, making Xu Sanduo tremble even more violently.

The driftwood then swung back, accompanied by a rightward sway. From a physics perspective, this is a typical two-degree-of-freedom rigid body pendulum structure.

However, even if Ai could see that Xu Sanduo was not thinking about any physical principles at this moment, because as the wooden platform swayed back and forth three or four times, his center of gravity was completely out of control.

Xu Sanduo's face was deathly pale. He kicked his legs wildly, trying to find a foothold, but in the end, just like all his predecessors, he lay flat on his face in the sand pit below.

Shi Jin quickly stepped forward to help him up, patted the dirt off his training uniform, and said, "San Duo, are you alright? That's how it is with dual axes. You have to take care of everything in front, behind, left, and right. It's multi-dimensional. You can't just tough it out. You have to use techniques."

As he spoke, Shi Jin jumped onto the swaying log, and Wu Liuyi started pushing from the side. Shi Jin stood on the circular stepping board, his legs slightly bent, his waist and abdomen tensed, and he swayed steadily with the stepping board.

"The most important key to the double-axis stepping technique is to bend your knees, sink your hips, tighten your core, swing your weight smoothly, keep your arms outstretched and your gaze fixed, and practice slowly without forcing yourself."

Shi Jin's gentle voice rang out. Xu Sanduo stood to the side, rubbing his numb forearm as he watched Shi Jin perform various movements on the driftwood like a nimble monkey.

Spin, jump...

"Xu Sanduo, why are you grimacing like that? Look at how the squad leader is doing it. Sway forward and lower your waist, sway back and thrust your hips, shift your weight to the side when you lean to the left or right, and keep your eyes on the poplar tree in the distance. Don't look around."

Wu Liuyi's deep voice rang out, startling Xu Sanduo, who subconsciously nodded.

"Squad leader, I'm here." A voice came from afar, and Gan Xiaoning walked over carrying a military enamel mug.

Xu Sanduo was a little curious. Didn't the squad leader just finish drinking water in the dormitory? Why was the vice squad leader bringing over another cup of water?

"Give it to me," Shi Jin said, standing on the driftwood and holding out his hand.

Shi Jin took the enamel mug filled with water, held it up with his palm facing upwards, while Wu Liuyi tacitly increased the swinging of the driftwood.

Even in the midst of the sudden swing, Shi Jin's body remained steady, and the enamel mug in his palm remained perfectly still, as stable as Mount Tai.

After a while, the swaying log stopped, and Shi Jin got off. Xu Sanduo went up to take a look and exclaimed, "Wow, that's amazing!"

The water that was originally one centimeter away from the rim of the cup in the enamel mug was still in the cup, with only a few water droplets hanging on the rim.

"Squad leader, you're really amazing," Xu Sanduo chuckled and exclaimed.

"With more practice, you'll be able to do it. Have you recovered? If you have, then keep going." Shi Jin's tone was very gentle, but the meaning he conveyed was not to be refused.

"Squad leader, I'm fine, I'll go right now." Xu Sanduo scratched his head and came to Langmu's side again.

"Yes, yes, that's it. Stand on the front or back of the log, with your feet perpendicular to the log's axis, feet shoulder-width apart, toes slightly hooked into the anti-slip edge, heels slightly raised, and use the balls of your feet to generate power."

The body posture should be a half-horse stance, with the hip joints slightly lowered, avoiding straight legs. The core should be engaged throughout the movement, the back straight but not stiff, the head upright, the neck straight, and the gaze fixed on a fixed point 5 to 8 meters in front of you.

Xu Sanduo adjusted his posture continuously in response to Shi Jin's gentle voice.

"Arms, both arms outstretched, use your arms to maintain balance, when swaying left and right, gently swing your arms in the opposite direction, hey, that's it, let your body sway with the wave, don't resist it."

Xu Sanduo gritted his teeth and stood on the swaying log, swaying back and forth, the log creaking and groaning as it rocked back and forth.

Xu Sanduo's muscles were tense, and his forehead and face were covered in sweat. Every time he was about to stabilize, the wooden platform would change direction again. Shi Jin and Wu Liuyi stood on either side of him, reminding him of the points to exert force from time to time.

"Stay calm. When you're sitting in an armored vehicle, a sudden change of direction won't give you time to react," Wu Liuyi's serious voice rang out.

puff!

Upon hearing this sound, Xu Sanduo, who was already teetering on the edge, collapsed back into the sandpit.

"Alright, it's almost time. Come on, Sanduo, sit down. I'll put some safflower oil on you." Shi Jin waved to Xu Sanduo with a smile and took out a transparent glass bottle with a red label from his pocket.

Both Axe Brand and Baiyunshan Zheng Honghua Oil are commonly used by grassroots military units. Baiyunshan is cheaper and suitable for group purchases, while Axe Brand is more expensive.

Of course, there is a difference between expensive and cheap. Baiyunshan has a milder, gentler, and less irritating smell, while Axe Brand has a stronger, pungent smell, a more pronounced spiciness, stronger penetration, and more direct pain relief.

Most companies and recruit training units prefer Baiyun Mountain because it offers good value for money and is comfortable. However, the Steel Seventh Company only chooses Busan because it is effective.

Normally, a bottle of safflower oil contains 20 ml. Although there are always 2 to 3 ml left at the bottom that can't be dispensed, one bottle is enough for the soldiers of the Seventh Company to use for four or five days.

For Xu Sanduo, a bottle of safflower oil lasts at most two days because the Axe Brand safflower oil contains chili oil, and many parts of Sanduo's body are red.

……

It's easy to fall while practicing on the driftwood. Xu Sanduo fell down too many times. Shi Jin and Wu Liuyi couldn't bear to watch anymore, so they took Xu Sanduo to the roller.

The roller is also a good thing. It is made of steel bars and looks like a huge fan shell. It is supported by tripods that are deeply buried in the cement on both sides.

There are two pedals on the inside, with corresponding handholds. After entering, you step on the pedals with both feet, grab the handholds with both hands, and your whole body forms an X shape inside the shell.

The reason why rollers are good is because driftwood is easy to fall on, and if a soldier falls, it will hurt and affect the training progress.

The rollers would prevent the soldiers from falling and getting injured, and they also take up less space than driftwood.

After the soldier enters the roller, the friendly squad leader will use backpack ropes to help tie the soldier's hands and feet to the roller, and will also use a safety rope to secure the waist, so that there is no need to worry that the soldier will lose his grip or foothold and fall out.

Xu Sanduo looked at the roller and was a little scared. In his opinion, that thing was not even as good as the driftwood. The driftwood could at most throw him, but he had no say in this roller.