Mountain climbers
The expert explained: “Mountain climbers are another killer exercise that will burn a lot of calories, especially when they’re part of a HIIT workout.
“This is a really efficient exercise because it requires a lot of work from your core muscles, engages your full-body, and gets your heart racing.”
As well as going for cardio moves to get the heart rate up, the exercises will also work the whole body.
source: express.co.uk