Strengthen all your key muscles in this 30-minute dumbbell conditioning class. Ideally, you’ll need 2 sets of dumbbells – one heavier, one lighter – so that you can switch it up depending on the difficulty of the exercise:

Block 1 – goblet squats, Romanian deadlifts (RDL), glute bridges, bent-over rows, floor presses, push presses and squat hold
Block 2 – sumo squats, split squats, side-lying abductions, push-ups, bent-over rows and plank jacks
Block 3 – upright rows, hammer curls, skull crushers, floor flies, open curls and rear flies
Block 4 – Russian twists, crunches, heel touches, sit-ups and plank.