The one-arm dumbbell reverse curl hits both the biceps and forearms hard.
- Grab a dumbbell and stand up holding the dumbbell on your thigh with your palm facing you (reverse grip).
- Take the weight off your body, so the forearms and biceps are contracted. This is the starting position for the exercise.
- Keeping your elbow fixed in place and shoulders back, slowly curl the dumbbell up as far as possible.
- Squeeze, and then slowly lower the dumbbell back to the starting position.
- Repeat for desired reps and, then repeat with your opposite arm.