Compléter Fill in with the correct collocationsVersion en ligne Fill in with the correct collocations par Daria Dareenglish 1 mill exercises PT kettlebell intense High skill weights bursts Training short Intensity workouts A new gym has opened in the city . It's called and it's for people who want to get fit fast . The are only 30 minutes , but they're very hard . You do them with a personal trainer ( ) and you can burn up to 500 calories per workout . The workouts are different every day . They include of like burpees and squats . There are also exercises on special machines like the . This is a curved treadmill that helps you burn more calories than a normal one . High Intensity Training has been in the news recently because it's just launched a new piece of equipment . It's called the S - Drive Performance Trainer . It's a kind of sled that you push or pull along the ground . It's great for improving your power and strength . If you try this exercise , you'll probably feel it most in your legs the next day . The gym also uses . These are big metal balls with handles . You can use them for lots of different exercises . For example , you can swing them between your legs and then lift them above your head . Kettlebells help you build muscle and burn fat at the same time .