05/04/2016
How to Do a Proper Dumbbell Curl | LIVESTRONG.COM
How to Do a Proper Dumbbell Curl | LIVESTRONG.COM The dumbbell, or biceps, curl is one of the most familiar and basic exercises you can perform with a set of free weights. Although it's an easy resistance exercise, with a simple twist in variation it can be made more effective than it already is. With the correct form and technique, your biceps wil...