Because diving breathing is compressed air, oxygen molecules can better penetrate into the skin through the flow of blood, accelerate the metabolism of the skin, and beautify the skin from the face. The following is what I want to share with you about 20 17 outdoor diving. Welcome to read and browse.
First, diving safety instructions
1, healthy, and can be attended by people aged 6 to 60.
2. Anyone who can swim or not can participate.
3. You can't engage in diving activities after being drunk.
People with heart disease, asthma, hypertension and otitis media can't take part in diving activities.
Never use earplugs when diving.
6. Follow the coach's peer system.
7, eye myopia can choose a diving mirror that is similar to your myopia.
8. Several gesture languages that must be mastered when diving: OK, ascending, diving, uncomfortable, poisonous creatures, please do not touch.
9. Learn the back pressure method. When diving, because of the pressure of water, you will feel your ears hurt when you dive to a certain depth. When you do back pressure, the pain will go away. Back pressure method: hold your nose from the mask and block your nostrils, then inhale hard, do you hear? Pop music? Sound, air injected into the ear canal, back pressure succeeded. Or swallow saliva, can also make the ear pressure balance.
Second, what are the precautions for the first dive?
The first experience of diving brings us freshness, curiosity, excitement and mystery, as well as a little fear and tension. Friends who are in the water for the first time should pay attention:
1, inspection equipment
Never be careless before diving. First, assemble your own equipment, check it carefully and give it to your diving partner for confirmation. In order to ensure safety, diving regulations must be carried out by two people. Both sides check each other's diving equipment, which is more secure.
Put on your equipment and walk into the sea with your diving partner. When the water reaches your waist, stand still, put on your goggles first, and then put on your flippers. Leaning on the other person's shoulder when wearing flippers can keep your body stable. After this, put the regulator in your mouth and start breathing from the second decompression part. Turn around, wipe your feet and continue walking into the sea. Take? Wipe the floor later? This way aims to prevent tripping due to the inconvenience of flippers. At the same time, you should observe whether there are waves and obstacles behind you.
2, into the water
Make sure all the equipment is ready before launching. There are two ways to enter the water: land entry and ship entry. There are two ways to enter the boat: sit by the boat, pour water backwards and jump into the water forward.
Step 3 dive
After arriving at the scheduled dive site, the two sides stood face to face and made it clear to each other? Are you ready? what's up Okay？ Gesture, then thumb down, send out? Diving? Signal, along the natural slope at the bottom of the coast gradually dive into the sea. The first time you experience a diver, don't dive more than six meters.
On the way to diving, always observe the water pressure gauge and master your own depth.
? Release? The pressure in the ear hole is another important thing to pay attention to when diving, otherwise the ear hole will feel pain. The method is to hold your nose and inhale through your mouth, then close your mouth and nose to exhaust. At this time, you will feel something in your ears? Poof? There was a bang, as if something had passed through. The water pressure changes with the depth, and the pressure in the ear hole should be released from time to time.
Step 4 move in the water
When you dive to a certain position, you can move at will. When swimming, the body stays in the water posture during the day and is streamlined. In order to reduce physical exertion, we should swing the flippers regularly, slowly but greatly, breathe smoothly without tension, and at the same time adjust the buoyancy correctly to avoid collision with the seabed. If the body starts to feel heavy, you can put some air into the buoyancy regulator. Pay close attention to the surrounding movements and exchange information with diving partners frequently.
5. Floating objects
After diving, it began to float. First, tell your partner to get ready to float by gesture. After being confirmed by the other party, exhaust the air from the buoyancy regulator and float up slowly. At this time, we should pay attention to: first, we must not stop breathing on the way up, and second, the floating speed must be slow, otherwise the diving obstacle may be caused by the change of water pressure. Immediately after floating on the water, air is filled into the buoyancy regulator to maintain buoyancy, and a snorkel is used to breathe instead of air.
Step 6 go ashore
After emerging from the water, swim to the shore, stand up in a shallow place, take a backward posture according to the same essentials as diving, and wipe the ground with your feet. Diving records must be made after landing.
If you want to experience the fun of diving better, it is very important to listen to the theoretical knowledge carefully before diving. People who experience diving for the first time will encounter some difficulties in diving, hoping to help friends who are about to experience diving.
Third, the benefits of diving.
1, improve and improve the cardiopulmonary function of human body and enhance the strength of major muscle groups.
2, fitness, beauty. Because diving breathing is compressed air, oxygen molecules can penetrate into the skin better through the flow of blood, accelerate the metabolism of the skin and beautify the skin from the face; Because people consume more calories in water than on land, diving has become a good way to lose weight and keep fit.
3. Hone your will and cultivate team spirit. Diving can exercise people's psychological quality, let people learn how to face unfamiliar environment and enhance their ability to cope with crises and emergencies. Divers and diving instructors, regardless of their level, must strictly abide by the diving companion system and cannot dive alone. Divers must take care of and help each other.
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