How to do it
Keep your feet planted flat and your weight evenly distributed.
- 1
Stand with feet shoulder-width apart, holding a bottle in each hand at your sides.
- 2
Curl one bottle towards your shoulder, rotating your wrist so your palm faces up.
- 3
Lower the bottle back to the starting position while simultaneously curling the other bottle.
- 4
Alternate arms with each repetition.
Expert tip
Rotate your wrist as you lift the bottle to fully contract the bicep at the top of the movement.
Common mistakes
- ✕Swinging the hips to drive the bottles upward
- ✕Driving the elbows forward past the ribcage
- ✕Dropping the bottles quickly between reps