Is Short-Range vs Long-Range Bicep Training Better for Growth?

Loading your muscle at its most stretched position, where mechanical tension is highest, is what makes long-range bicep training so good for muscle growth. Short-term work isn't pointless, but it lacks that important stimulus. When used in the right way, partial reps can also be useful. You don't have to pick one over the other, which is good.

What Actually Happens to Your Biceps at Different Ranges?​

There are different levels of tension in your biceps at different times when you curl a weight. The biceps brachii muscle has a range of motion that changes the amount of tension it feels based on the position of the arm and shoulder. The biceps is stretched and may be under more tension when the muscle is longer, which is important for muscle hypertrophy. Tension drops a lot at shorter levels. Short-range bicep workouts tend to put more stress on the muscle when it's already tight, which makes the stretched position less stimulating. This difference is important to understand because the growth signal your muscle gets depends on where the stress peak is during a rep. When you train with long muscle lengths, you keep real stress on the biceps, which may be where it leads to the most change.

What the Research Says About Range of Motion and Muscle Growth​

Many lifters have changed how they choose exercises because of new research on range of motion and growth. Studies that compare full-range and partial-range training show that longer muscle lengths lead to more muscle growth. This is because as a muscle stretches under load, its mechanical tension rises. For biceps hypertrophy in particular, long-range bicep workouts that work the muscle while it is stretched out have shown promise. It is important to note, though, that most study uses untrained subjects, which makes it harder to directly apply to experienced lifters. The amount of training also affects these results, as doing more sets doesn't always make up for bad exercise choice. Doing a lot of work on your biceps in a range that focuses on stretch-point tension seems to have a real hypertrophic benefit compared to doing most of your work in shortened poses.

Does Long Range Bicep Training Really Build More Muscle?​

Although there is a lot of evidence pointing in one direction, it's not always easy to turn study into realistic expectations. When it comes to muscle growth, long-range bicep training does seem to be helpful, especially when the biceps are put under stress at longer lengths. The benefit isn't just better bicep range of motion, though. It has to do with where in that range your muscle has the most work to do.
Because their resistance profiles are different, two exercises can have movement arcs that are very similar while still producing very different stimuli. That's why choosing the right exercises is just as important as the range itself. The advantage comes from choosing movements that mix a longer position with a lot of mechanical tension. Feeling a deeper stretch without properly loading the muscles won't always lead to better growth compared to well-executed, gradually overloaded options.

When Partial Reps Earn a Place in Your Bicep Training​

In some cases, doing partial reps can be just as good for your biceps as doing full-range reps. Near the end of a set, when your muscles are already tired, short-range partials let you do more reps at a certain muscle length without losing all force. When you train your biceps at short range vs. long range, a smart partial range of motion lets you focus on positions that your full reps skip over. If you focus on longer loads when you train your biceps, finishing sets with partials in that stretched position will help them get bigger without making you too tired. The most important thing is to use partials to work a length of muscle that is hard to work, instead of shortening positions just to avoid the harder parts of the lift.

How to Use Both Ranges to Build Bigger Biceps​

To get bigger biceps, you don't have to pick between long- and short-range exercises. You just have to put them where they will do the most good. When you're freshest and able to handle a good amount of weight, start your resistance training with exercises that test you in the stretched position, like incline curls or cable curls with the elbow behind the body. Then add exercises that focus on bending the elbow all the way through its range of motion, such as standard barbell or dumbbell curls. If your volume goals require it, finish with shorter-range work. Without lowering the overall training output, this order makes sure that the most effective stimulation comes first. You should think of each range as adding to what the other one lacks, not as competing with it.

 

[paulr_91]

I’ve been experimenting with this a bit because I used to just think a curl was a curl lol. Never really paid attention to where the muscle was being challenged during the movement.

I do notice some exercises feel way harder when the biceps are stretched more at the bottom. Not sure if that automatically means more growth though, so I’m curious what the more experienced guys here have found.

 

[BrofessorLift]

I switched to more exercises that load the biceps in the stretched position and honestly noticed a difference. Incline curls and cable curls with the arm behind the body are brutal lol. Still think full range reps have their place tho, its more about using both intelligently.