Seem straightforward? Not so fast. The circuit is designed to be completed three times, with no rest in between.
Grab a water bottle and dig deep, this one’s going to sting...
Standing dumbbell bicep curl
Stand holding two dumbbells at your sides, palms facing forwards. Move only your forearms to curl the weights up to your shoulders. Return under control to the start position.
Standing dumbbell tricep extension
Stand tall and hold a dumbbell with both hands directly above your head. Slowly flex your elbows and lower the weight behind your head as you keep your upper arms still. Extend your arms and repeat.
Sit on a bench with dumbbells held in front of you, palms facing your shoulders as though you've just finished a bicep curl. Push the dumbbells up over your head while rotating your arms until your palms face away from you. Straighten your arms, pause, then reverse the movement.
Dumbbell hammer curl
Hold a dumbbell in each hand at your sides, palms facing your hips. Curl the weights up until your thumbs are near your shoulders, then lower.
Seated dumbbell kickback
Sit down and hold a dumbbell with your right hand. Start with your arm bent, bringing the dumbbell next to your chest so your upper arm is parallel to the floor, and straighten your arm behind you using your forearm. Return slowly to the start position and repeat.
Pick a couple of dumbbells and stand with them by your sides, palms facing your body. Keeping your upper body still – that means no swinging – lift the dumbbells out to your side with a slight bend at your elbows. Lift until your arms are parallel to the floor then slowly lower to the start position.