Who does not know that?

You want to do sport, you can maybe overcome yourself, but you have a suspicion: “Oh, from time to time everything will be pretty tight.

I actually only have a quarter of an hour, 20 minutes. ”That's what high-intensity interval training is for.

Allegedly you can achieve the effect in 15 to 20 minutes that you would otherwise only achieve in 60 minutes.

Jürgen Siebenhünen, personal trainer and expert for such training, tells us today how this can work.

Jürgen, what exactly is special about HIIT?