Ich benutze den O2 Trainer jetzt seit ungefähr zwei Jahren. Ich habe ihn gekauft, um mein Asthma zu verbessern. Seit meiner Kindheit habe ich allergisches Asthma. Als Kind musste ich ständig lange elektrische Inhalatoren benutzen. Als Jugendlicher dann täglich vier Hübe Kortisonspray. Manchmal habe ich trotz des Sprays kaum Luft bekommen und saß nachts wach im Bett. Das hat sich auch im Erwachsenenalter nie geändert. Jeder Arzt hat mir gesagt, dass ich das Spray mein Leben lang nehmen muss, da es keine Heilung für Asthma gibt.Irgendwann habe ich dann bei Joe Rogan gesehen, wie Bas Rutten den O2 Trainer vorgestellt hat. Als MMA-Fan kenne ich Bas seit Ewigkeiten und wusste, dass er keine schlechten Produkte vermarkten würde. Also habe ich mir den Trainer bestellt, mit dem 8mm-Aufsatz angefangen und mich immer weiter gesteigert. Nach etwa sechs Wochen konnte ich mein Asthmaspray absetzen. Zu der Zeit war ich beim 4mm-Aufsatz.Seitdem kann ich so tief einatmen wie noch nie zuvor in meinem Leben – das ist für mich persönlich wirklich lebensverändernd. Ich habe seitdem weiter trainiert und kann mittlerweile sogar hin und wieder ein bis zwei Tage ohne den Trainer auskommen, ohne Probleme.Danke für dieses Produkt!

Product was delivered on time and as expected. Have started using it now and expect to see results soon.

L'articolo è arrivato con quelli che sembravano pezzi di ganja sopra, dava l'idea di essere già stato aperto. Oltretutto la valvola che dovrebbe chiudersi durante l'inspirazione non sigilla bene e rende anche l'utilizzo di resistenze alte inutili.Lo terrò solamente perché è utilizzabile sigillando la valvola col dito, e perché non ho voglia di star dietro alla trafila per ottenere un rimborso.

I am almost 40 and for my whole life I have felt like my cardio system was the weakest link in my body. I am fine with low rep heavy lifting but whenever it came to running or boxing I felt like I would always be out of breath within a few minutes. Doing more cardio helps of course but I could not help shake the feeling that there was something wrong with me, that for all the effort I put into the cardio I should be performing better than I was.I heard about this thing on Bas' Youtube channel and I did some reading around. I was skeptical. It seemed to me like you could just get the exact same effect breathing through a straw. But I love Bas' personality and have laughed many times at his crazy Youtube videos so I figured I would trust him and give this thing a try.So basically this thing restricts airflow when you are breathing in, and there is a valve that allows you to breathe out as quickly as you want. So you are only stressing the inspiratory muscles used for breathing in. And because your outward breath happens so quickly, effectively you are straining your inspiratory muscles 90% of the time that you are breathing. The load becomes almost continuous.It comes with a wide variety of hole sizes for people of all abilities. The widest hole (#1) is almost zero resistance and would be suitable for a senior with breathing difficulties. As a dude with above average fitness I started at #6. From the very first session I could feel some soreness in the muscles around my ribs, which I knew could only be a good thing. It means I was going to become stronger! Having one way resistance versus breathing through a straw was a big difference. I don't know how to describe it but from the first few breaths with this thing I could tell something was different to continuous airflow restriction.The more sessions I used it, the more I felt soreness in muscles that I never knew I had. Muscles that clearly had never been trained before my whole life. I progressed quickly and I decreased the hole diameter by about 1 with each session. Now I am on hole #11, which is very significant resistance and I think I am going to stay here for a while. Hole #12 would be for literal professional athletes.Now when I am running or boxing I just don't feel out of breath. My heart rate still hits 170 like before but I am not gasping for air. It is really weird it almost feels like a super power! I can literally feel several mm thick of muscle around my ribs that I never had before my whole life. It feels awesome. I can expand my ribcage now to a size I never thought possible for my skeleton. It looks like the massive chest poses Arnold did in bodybuilding.This whole thing is mindblowing to me. I have been hitting the weights and bikes for more than 20 years and still nothing ever properly trained my breathing muscles all this time?! Why aren't more people talking about this?!The only downside is that I feel like it is expensive for what it is - basically some molded pieces of rubber. Also it smells/tastes weird and.. well... rubbery. But it works, and it works even better than I expected, and Bas is awesome so 5 stars.One reviewer was complaining that this thing caused him to lose his voice. I don't know what's up with that guy, but that sure as hell hasn't been a problem with me.

I was scepticall at first. After a week i did see some increase in my stamina but i waited one and a half month to be sure. Yes it does work! My stamina is a lot better. I can expand my chest more and funny enough after exercise too i actually can feel i use my back muscles when i brathe:) i cant wait what results i will get after a year or something. Highly recomended