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JOHAN keeps you up-to-date with all the latest developments in the field of sports science! On this page you find an overview of engaging blog articles about relevant topics written by our own sports scientists. Also read interesting news and scientific analyses about the biggest events in field sports.

In the last weeks, most football- and hockey players have enjoyed their well-deserved summer break. After a long season, the players needed some mental and physical recovery time to be ready for the start of the new season. For some players holiday time is already over, since several (professional) ...

How often have we been discussing the differences between men and women’s football? We can all think of lots of examples which highlight the differences between both types of football. Some examples will be in favor of women’s football and other’s will be in favor of men’s football. In this ...

From little on boys and girls have the dream of becoming a professional hockey or soccer player: they dream of winning league titles and playing in the World Cup final. However, only some are lucky enough to get scouted for a professional youth academy. Even though they have to train 4 or 5 times a ...

Which players in your youth academy are ready for the next step? Deciding which players remain in the academy next season and which teams they will play in, is a tough decision. Several aspects need to be taken into account (tactical skills, motivation, anthropometrics, physical fitness etc.), befor...

Which players in your youth academy are ready for the next step? Deciding which players remain in the academy next season and which teams they will play in, is a tough decision. Several aspects need to be taken into account (tactical skills, motivation, anthropometrics, physical fitness etc.), befor...

In the last blog we have discussed how benchmarks can help you plan your training program ahead. Furthermore, in previous blogs we have also discussed the added value of using both GPS-data and subjective data to monitor your team. However, we have not discussed how......

In the past few weeks, different concepts of periodization have been discussed and it is explained how you can check whether you have reached the demands. However, this was all based on checking after the training whether you have reached your goals. In today’s blog,......

Have you ever wondered whether your players perceive the intensity of your training as intended? And did you know that you can win games, prevent injuries and optimize the training loads of your players with only their answers on 5 easy questions? Getting information from exertion and recovery...

In Dutch sports media, there has been a discussion for over a week about how Ajax – but especially Tottenham – will play in the match of tonight. Will Tottenham go for the tactics of Real Madrid and Juventus, and thus give Ajax space to......

In the last two blogs we have discussed two periodization models: the block periodization of Verheijen and the acute:chronic ratio of Gabbett. The two models shouldn’t be viewed as opposing theories, rather they are complementary to each other. In today’s blog we will therefore discuss......

Trainers and coaches are balancing training load on a daily basis. High training loads improve the physical fitness, and decrease the risk of injury. On the other hand, when training load is too high this increases the risk of injury. Having to deal with these......

High performance in team sports requires different physical capacities: endurance, explosive accelerations, sprinting, and the ability to quickly change direction. As trainer/coach, it is your task to train these factors. There are multiple periodization models that can help you to get your players ...

We are almost at the end of the football and field hockey season. As a trainer/coach you have likely noticed that fatigue is starting to build up in your players; they are not as fresh as at the beginning of the season. And to make......

Do you notice that your players can not perform the deciding actions at the end of the match anymore? Or do you have to many goals against in the last fifteen minutes of the match? In this blog we will discuss how you can improve......

Periodization is a commonly used term in sports. But what does periodization mean? And which principles can you, as a trainer or coach, integrate in your training schedule? In the coming weeks we will answer these questions and we will discuss the different principles of......

As a coach you want your team to get fully rested during the winterbreak without losing all fitness after the holidays, so your team doesn’t have to catch up lost fitness when recommencing competition. A winter break, generally lasting about 14 days, is the perfect......

As a coach, you want to train your team as hard as possible and minimize the injury risks. Balancing between those two extremes is a tough job. You don’t want to train too hard causing exertion, or worse: injured player(s). Training too soft with the......