Author: Henk Kraaijenhof

Mother nature possesses a large medicine cabinet, much larger than all the products of the pharmaceutical industry together. A simple plant can produce 100-500 different chemical compounds, of which many have a special value for …

Of course, I won’t be asked if I would make this choice, since I am not an athlete with a chance to participate at the Tokyo Olympics. But if so, I would definitely not take …

One of the main pillars of the current political correct trend in elite sports is the so called “level playing field” . What it comes down to is that every athlete should have equal chances …

It seldomly happens during the career of athletes that they have only one coach from start to the end of their career. The change of coaches can have natural reasons such as: within the structure …

We might think the following is obvious, if we become 75 years old, we will have spent 25 years sleeping. Well, we sleep a little less nowadays since it seems that our hyperactive society is …

Despite the Covid-situation I am quite busy, keeping athletes motivated and training well, coaching, writing more, maybe another book rather soon, and of course, reading and studying. People who know me, also know that I …

Na 20 jaar testen en adviseren van vele individuen met verschillende achtergrond, topsporters, SF operators, politieagenten, ambulance personeel, artiesten, CEO’s, managers, en mensen zo als u en ikzelf, heb ik mijn ervaringen samengevat in dit …

In case of supplementation for supporting sports performance, these three amino acids certainly deserve attention: arginine, ornithine and citrulline. These three are structurally and functionally related, let’s say cousins. Research about the use of amino …

One of my favorite movies, when I was a lot younger, was “Goldfinger” after the book by Ian Fleming, especially the scene where the crook Goldfinger is preparing to kill my hero by cutting him …

I have decided to write a small series about performance enhancement in elite sports. Enhancing performance is not an easy task in elite sports for several reasons. In many sports an athlete has to train …