Bulk Up Your Biceps With Dumbbell Biceps Curls

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Working out any muscle is a good thing, but there are clearly some parts of the body where extra focus brings with it certain benefits. It’s never going to hurt to have huge upper arms when out on the town, and sometimes all you want to do after a workout is gaze in the mirror and tense something impressive – hey, we all do it. For that purpose, you can’t go wrong with bicep curls, but it’s not all about glamour. Working your arms with curls and other variations can improve your grip strength, which can make all the difference when you’re trying to push through those last few pull-ups and other pulling exercises.

How To Do Dumbell Bicep Curls

Grab a pair of dumbbells. Don’t opt for weights you can barely lift, you’re looking to complete 10 to 12 reps. Hold the dumbbells at your sides with your palms facing forwards. Keeping your elbows close to your sides, curl the weights up to your chest. Don’t lean back, and don’t enlist momentum to help by swinging up through your body – it’s cheating. Shoot for three sets.

You can opt to curl both dumbbells at the same time or alternate them, but either way it’s vital to lower the weight back to the start point after each rep in order to stretch the muscle properly and work all the muscle fibres.

Form Tips

Drop the weight

Not literally, at the end of the set, but at the beginning – by decreasing the load you lift.

Why it works: “So many people think that growing bigger biceps means using bigger dumbbells, but that’s not the case,” says former Royal Marines PTI Sean Lerwill. “Reducing the weight and performing slow and controlled reps will build muscle faster because it makes your biceps do all the work so you can’t cheat using momentum.”

Fix your elbows

“Your elbows need to be locked into the right position, close to your sides, so they don’t move when you lift then lower the weight,” says Lerwill.

Why it works: If your elbows move during a rep, you’re taking tension off your biceps. “You can also make a biceps curl even more effective by keeping your elbows behind your body. This will prevent any cheat reps and keep the biceps engaged,” Lerwill adds.

Rotate your wrists

One of the main roles of the biceps muscles is to externally rotate your wrists, so use this to your advantage during dumbbell curls.

Why it works: “Start with your palms facing each other. Then, as you lift each dumbbell, start to rotate your wrists so you finish in the top position with your palms facing the fronts of your shoulders,” says Lerwill. “Reverse the movement as you lower to activate more muscle fibres.”

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Squeeze at the top

One of the best ways to add muscle size is to get a good pump, and squeezing your biceps at the top of a curl will achieve this.

Why it works: “Getting a pump looks and feels great, but science suggests it’s also an important factor in initiating a muscular growth response,” says Lerwill. “Pausing to squeeze your biceps at the top of each rep reinforces your mind-muscle connection, and pumps more blood into the tissue.”

Take your time

If building bigger biceps is a race, think of it as more of a marathon than a sprint.

Why it works: “Rushing your reps is one of the biggest gym sins because you won’t work the muscles anywhere near hard enough, so you’re ultimately wasting your time,” says Lerwill. “Keeping to a strict tempo of curling the weight up powerfully and lowering it slowly makes a huge difference to unlocking growth potential.”

Tense your triceps

Fully straightening your arm at the bottom of each curl rep ensures you move through the fullest range of motion.

Why it works: “When you tense your triceps to fully straighten your arm before you start another curl, it makes your biceps muscles move through a full range and work harder,” says Lerwill. “It also acts to refocus your mind ahead of every rep, and greater focus means greater results.” 

Bicep Curls Variations

Barbell bicep curls

If you want to lift more weight use a barbell. Make sure you avoid lifting the weight by leaning back – the weight should be comfortable enough for you to lift without straining your back. Try lifting with your back flat against a wall as a way of learning to avoid this.

Reverse curls

Another alternative is reverse curls, where you switch your grip so your palms face you at the bottom of the rep and away from you at the top of each rep. This targets muscles in your forearms as well as your biceps for thicker, stronger arms.

Dumbbell Biceps Curl Workout

Follow this quick workout to build strength in your arms: complete a set of five reps with a heavy weight, making sure that you lower the weight or weights under control. Reduce the weights as you increase the reps with minimal rest. Go from five reps to eight to 12, then work to failure.

Additional reporting by Scott Blake (@Scott_Blakey)