Grab a kettlebell and feel the burn in this 30-minute conditioning class. If you don’t have a kettlebell, you could use a bottle of detergent or milk, or a packed rucksack or gym bag. You’ll be doing 8 kettlebell exercises in each block:

Block 1 and 3 – squat pulses, push-ups with shoulder taps, reverse lunges, alternating single arms, sumo squats, Romanian deadlifts, mountain climbers and leg raises
Block 2 and 4 – squats presses, alternating wide rows, clean and presses, side lunges, glute bridge, kettlebell swings and plank.