Nog iets over de O2-CO2 verhouding, iemand die alleen of te veel hoog in zijn borst ademt of met zijn mond in en uitademt verspild C02. Als hij daarna weer fout inademt krijgt het lichaam zowel tekort aan O2 als CO2.
Maar als er nu eens een gewone diepe golf ademhaling domineert, het lichaam verwijd de bloedvaten en de wet van massa-actie vult het plasma en draagt het over naar de hemoglobine ongeacht wat de CO2 5% voorstanders geloven.
Laat je adem komen met gemak dan relaxt het hele lichaam, bij de Buteyko methode ga je toch stres oplossen met stres, oke het kan werken, maar je leert hier niet om ontspannen adem te halen nadat je weer beter bent, de reflex die je dan krijgt om weer in te ademen of uit te ademen met een ontspannen golf ademhaling. En wie zegt dat je op een zo natuurlijke manier ademen dat je dan nog 02 of C02 verspild? Misschien bouw je zowel een buffer op aan 02 die je kunt gebruiken wanneer het nodig is. En op een natuurlijke manier ademen is niet overdreven diep in ademen of overdreven uit ademen. Je ademt in tot zeg maar driekwart en je ademt uit tot zeg maar driekwart van je mogelijkheid met een rustige volle golfademhaling. Je zult ook wel eens adempauzes hebben tussen de ademhalingen door, maar niet bewust gestuurd.
SO CALLED "HEALTHY BREATHING" TECHNIQUE
A leading medical doctor advocates breath holding exercises. He is also about 40 pounds overweight and recommend foods that many are allergic to. Go figure. Breath holding exercises may relax initially but over time restrict natural breathing. Most of us got into emotional, energetic and personal power breathing trouble in the first place because of some sort of breath holding. The breath holding "hunger-for-air" illness model approach conditions the body to function with less air and this can have temporary benefits but I have not seen it to increase a coordinated lung volume, breathing ease, and nervous system balance to any great degree. I believe that if you breathe bigger, easier and in balance, the oxygen cost of breathing goes down. If you hold back your deepest easiest effortless breathing, if you inappropriately interrupt the natural ebb and flow of healthy respiration, the oxygen cost of breathing goes UP.
YOGA AND BREATH HOLDING
The so called yoga breathing count where you breathe in hold the breath for several counts and breathe out and hold the several counts are in my opinion training us to hold our breathing even more than we do already. Breath holding can give some relief from hyperventilation but at the cost of tightening the stomach muscles, worsening the startle response and over time making inviting shallow breathing. I understand the Hale Clinic in the UK used to teach a Russian breath holding technique for asthma and they no longer do that. I often hear of yoga teachers and personal power experts advocating a pattern of say the 2:4:6:4 ratio; 2 inhale: 4 hold : 6 exhale: 4 hold; or 2:4:16:4 ratio; or whatever numbers they think are good or fit their ego. I totally disagree and caution everyone to not hold their breath nor try such difficult lengths of breathing extensions. Your diaphragm can support the voice best when it keeps moving. Listen to people's voices. See if they sound deep, full and resonant or thin, dry or raspy.
ATHLETES AND BREATH HOLDING
Sports related asthma is becoming epidemic. I understand that a few swimming coaches train students to not breathe. Your cells, particularly your muscle cells, undergo a chain of reactions known as cell respiration. "Respiration" in this sense, does not directly mean breathing, but rather a breakdown of the body's main source of energy, glucose. (sugar.)
Your cells can perform two types of respiration: aerobic (meaning "with oxygen") and anaerobic (meaning "without oxygen"). Aerobic respiration is the usual and preferred way for your cells to produce energy, but when you hold or in any way make your breath less so, you are depriving your body of oxygen and your cells have to resort to anaerobic respiration.
When that happens, the energy-producing process is kicked over to an alternate pathway called lactic acid fermentation. That burning, sore sensation you feel right after vigorous activity? That's a build-up of lactic acid -- it hurts.
To compare you could say that aerobic respiration yields 40 ATP, adenosine triphosphate. This is the molecule your cells use for most of their energy. Lactic acid fermentation yields 2 ATP.
Fermentation will happen to some of your cells when you workout. But as I understand it, when you hold your breath, this lactic acid fermentation occurs in most of your oxygen-deprived cells, and it makes that burst of energy you want very short lived -- not to mention potentially painful.
So, make sure your breathing is as big and easy as it can be. Then go have a great workout.
BLOOD PRESSURE
Holding your breath when you perform stomach crunches may cause your blood pressure to spike higher than it normally would during resistance training. In a study, people who voluntarily held their breath during abdominal exercises had higher peak blood pressure elevations compared to when they breathed during the exercises. Then there is Valsalvas maneuver where the people hold their breath to force out a bowel movement and die on the toilet from a heart attack.
EYESIGHT & BREATH HOLDING
"Don't hold your breath while using your eyes"
The eyes MUST have oxygen. One can turn oneself temporarily blind by holding the breath long enough. Breathe freely; not studied, controlled, or even thoughtful breathing, but easy breathing such as a dog enjoys when it throws itself on the floor to sleep. Breathing exercises can be very helpful but should send one towards better breathing. Many do not.
In my eye-training studio I once worked with a cataract case whose vision we had improved by our method to such an extent that I called in a doctor, who worked sympathetically with us, to examine the eyes with his powerful ophthalmoscope. One eye the doctor found to be entirely cleared of cataract. The lens of the other eye was still a little too cloudy to see the retina - to get the red reflex. 'Take a long breath' I said to the pupil. The doctor exclaimed aloud that that single breath had temporarily cleared the last vestige of film in the eye, so that the retina could be seen readily. Each time the pupil remembered to breathe, the remaining shreds of sediment were dissipated. Each time he held his breath a little murk clouded the lens once more. If deep breathing will do this for a seriously affected eye, one can realize how great the benefit to normal or nearly normal vision." "How to improve your sight" by Margaret Darst Corbett.
"About breath holding effecting the vision? It seems to all come down to staying relaxed and comfortable. Clear vision needs constant movement to function correctly. There is a perpetual vibration that, in effect, causes the illusion that everything you are viewing is in a state of movement. This oppositional movement of the world in front of your nose, is essential to clarity. As soon as we hold still, the vision fails to remain clear and the mind fails to recognize the input. That is why blinking and breathing and brushing your visual field with your nose are the first steps to good vision. When we hold the breath, we hold still. This effects the vision immediately. Also, less O2 exchange effects the vision immediately. The tension needed to hold the breath can also diminish clarity. Happy eyes work effortlessly, and a generous easy deep breath relaxes the eye muscles, leaving them free to vibrate effortlessly, follow your attention and interest, and support your amazing imagination.