“Apart from the obvious treadmills, bikes, and ski and rowing machines, the best tools in the gym to increase cardiovascular fitness are kettlebells,” says Syndey Walimbwa, founder of CLTCH Fitness.

By doing compound movements such as kettlebell swings, you’re getting your strength work in while getting your cardio too – effectively, you’re getting two workouts in one. Walimbwa explains that they’re a great tool for spiking heart rate “very quickly due to their functionality”; they don’t require any effort to set up, but they do get us working hard to move them from point A to B. Exercises such as swings are a total body movement that increase your heart rate and breathing - increasing your VO2 max (the amount of oxygen the body takes in during exercise) and generally giving your heart a good workout.

Hoggins is also a fan of kettlebells for their cardio qualities. “Kettlebells are an excellent conditioning tool. Utilising higher rep ranges and ballistic movements with appropriate rest has big cardiovascular benefits.”

Kettlebell workout: how training with a kettlebell will get you stronger from head to toe