Why Is One Arm Stronger Than The Other? (All The Answers For Perfect Symmetry)

L J Kudos

Why Is One Arm Stronger Than The Other? (All The Answers For Perfect Symmetry)

Whether you are an avid gym goer or just a regular person who doesn’t train, after looking in the mirror or even struggling to lift any kind of load…

You realise one arm is stronger than the other, but why is this?

People are naturally stronger on their dominant side but on some occasions, it isn’t just a slight difference but a noticeable one.

Why Is One Arm Stronger Than The Other?

There could be a few reasons why one arm is stronger than the other. It could be due to an imbalance in the muscles, meaning that one set of muscles is stronger than the other, which is perfectly natural for most people. Unless the difference is considerably different? It could also be due to a previous injury that has not healed properly, leading to weaker muscles on one side. Additionally, one arm may be simply naturally stronger than the other. If you suffer from reduced range of motion on one side or have joint/ligament issues, these too could be the reason why one arm is stronger than the other. There are ways to rectify the problem which we will look at. If you are concerned about an imbalance in your arms, it is best to consult with a doctor or physical therapist to determine the cause and create a plan to fix it.

There are several reasons why one of your arms is stronger than the other, let’s look at some of them.

Muscular Imbalance

If you don’t train your arms equally, one arm will likely be stronger than the other.

This is because when you train one arm, the muscles on that side become stronger while the muscles on the other side remain at their original strength.

You might be training both arms but only with the use of a barbell. Occasionally the dominant arm that’s holding the barbell will be doing most of the work while the other arm simply assists.

This will result in one arm being stronger than the other.

To fix this, you need to train both arms equally and individually, so that they are both as strong.

Previous or Current Injury

If you have suffered a previous injury to one of your arms, it’s quite possible that one arm will likely be weaker than the other.

This is because the muscles on that side have not been able to heal properly and are therefore not as strong as they should be.

This could also be the case if you have an injury but aren’t necessarily aware of it.

You may be aware something is off with the arm in question but decide to “power through”. This is a massive alarm bell if you experience this.

Whenever there is pain in your body, your brain is telling you to stop doing what is causing the pain.

If you ignore this and “power through” anyway, you are likely to make the injury worse. If this happens, it’s quite possible that one arm will be stronger than the other.

Related: Why Do I Feel Bicep Curls in My Forearms? (12 Crucial Things To Consider)

Joint/Ligament Issues

If you have joint or ligament issues on one side of your body, the arm on that side will likely be weaker than the other.

This is because the arm is not able to move as freely as it should be, meaning the muscles can’t work to their full potential.

Over some time, this will result in the muscles on that side becoming weaker than the other.

In some cases, this can cause atrophy in the muscle, meaning it wastes away and becomes smaller.

If you think this might be the case, again, it’s best to visit a doctor or physical therapist to see if they can help.

why is one arm stronger than the other?
Having joint or ligament problems can cause one arm to be stronger than the other

Reduced Range of Motion

If you have reduced range of motion on one side of your body, the arm on that side will likely be weaker than the other.

It’s also because the arm can’t move as freely as it should, preventing the muscles from functioning at their peak.

Over time, the muscles on one side will weaken compared to the other, if you don’t make a conscious effort to train both sides evenly.

If the reduced range of motion is due to an injury, you will likely experience pain when trying to move the arm.

It is crucial that you allow the injury to heal properly before trying to train the arm again.

If you don’t, you risk making the injury worse and causing even more damage.

Similar to joint and ligament issues, this can cause atrophy in the muscle if left untreated.

Is It the Non-Dominant Side?

In some cases, it’s simply because one arm is the non-dominant side.

The dominant side of the body is typically stronger than the non-dominant side.

This is because the dominant side is used more often throughout the day, meaning the muscles get more of a workout.

If you think this might be the case, there’s not much you can do about it except train both sides equally and even make the effort to do normal day-to-day tasks with the non-dominant side.

This will help to even out the muscles and make sure both arms are as strong as they can be.

While you likely won’t be able to achieve perfect symmetry, you can help to reduce the difference in strength between the two arms.

Bad Form on One Side

Another possibility is that you have bad form when working out one side of your body.

If you do, it’s quite possible that one arm will be stronger than the other.

This is because the muscles on the side with good form are getting a better workout and are therefore stronger.

The weight of the load you are trying to lift might be too heavy, causing you to use bad form.

If this is the case, you should reduce the weight until you can lift it with good form.

You might also be lifting with one side of your body more than the other.

For example, if you are doing a lot of chest presses with only your right arm, your right arm will likely be stronger than your left.

If you’re not sure how to do this, it’s best to seek help from a professional. They will be able to watch you and correct your form so that both sides are getting an equal workout.

Are You Compensating?

It’s also possible that you are compensating for an injury on one side of your body by using the other side more.

For example, if you hurt your right arm, you might start doing everything with your left arm instead.

While this is fine in the short term, over time it can cause the muscles on your left side to become stronger than the right.

This is also quite common for people when they experience back problems, as they start to favour one side of their body more to reduce the pain, so they can continue to function normally.

After a while, the body will continue to operate this way and your posture can start to suffer as a result.

If you think this might be the case, it’s important to see a doctor or physiotherapist so they can help you find ways to reduce the pain and get back to using both sides of your body equally.

They will likely also give you exercises to help strengthen the muscles on both sides of your body.

They will be able to help you fix your form and make sure you’re not compensating for an injury.

why is one arm stronger than the other?
Compensating from an injury can be problematic

Cheating at The Exercise

This ties in with having bad form, but it’s worth mentioning separately.

If you’re trying to lift a weight that’s too heavy, you might start to cheat at the exercise by using momentum to swing the weight up.

You might also arch your back or use your body weight to help push the weight up.

This means that you’re not working the muscles you’re trying to target and, as a result, they won’t get stronger.

You might think that you’re doing the exercise correctly, but if you’re cheating, you’re not getting the full benefit.

It’s important to make sure you’re using good form and only lifting weights that you can handle.

Related: Do Kettlebell Cleans Work Biceps? (All You Need To Know Here)

Genetics

One arm may be simply stronger than the other due to genetics.

Some people are naturally more coordinated and have better muscle development on one side of their body than the other.

If this is the case, there’s not much you can do about it except train both sides equally.

This will help to even out the muscles and make sure both arms are as strong as they can be.

While you likely won’t be able to achieve perfect symmetry, you can help to reduce the difference in strength between the two arms.

Be Aware of Bilateral Movements

Bilateral movements are exercises that work both sides of the body at the same time.

Some examples include chest presses, shoulder presses, and squats.

If you are doing these types of exercises, then you need to make a conscious effort to make sure the weaker arm is doing as much work as the stronger one.

Maybe doing these kinds of exercises is responsible for the difference in strength?

You can also try doing unilateral movements, which work each side of the body separately.

Some examples include bicep curls, tricep extensions, and lunges.

Doing these exercises will help to target each muscle group individually and make sure both sides are getting an equal workout.

why is one arm stronger than the other?
Be aware of bilateral movements if one arm is stronger than the other

So, there were a few possible reasons why one arm might be stronger than the other, but how could you correct it?

Rehabilitation

If you have recently had an injury, it’s important to follow the rehabilitation process properly.

This will help to ensure that the muscles heal properly and evenly.

It’s also important to make sure you’re not compensating for the injury by using the other side of your body more.

Compensating for an injury can lead to further imbalances and cause more problems down the road.

I have suffered from injuries in the past, while the road back to recovery is a long, hard and monotonous one, you must stick to the rehabilitation program.

A lot of people find it frustrating and get bored of doing what’s required to get back to full fitness, but trust me…you must stick to the program and trust the process.

Warm-up and Cool Down

When you’re working out, it’s important to warm up properly.

This will help to prevent injuries and make sure your muscles are ready to work.

A good warm-up should include some light cardio and some dynamic stretching.

After your workout, it’s just as important to cool down properly.

This will help your muscles to recover and prevent them from getting too sore.

A good cool-down should include some light cardio and static stretching.

Make sure you’re taking the time to warm up and cool down properly before and after your workouts.

Track progress 

If you want to see if you’re making progress, it’s important to track your progress.

One way to do this is to take pictures of yourself and measure your arms.

You can also keep a workout journal to track the weight you’re lifting and the number of reps you’re doing.

Tracking your progress will help you to see if you’re making the gains you want to make.

It’s also a good way to motivate yourself to keep going.

Prioritise the Weaker Side First 

When you’re working out, it’s important to focus on the weaker side first.

Start with that arm when doing exercises like bicep curls or shoulder presses.

You can also try doing more reps with the weaker side or using a slightly heavier weight.

Focusing on the weaker side first will help to even out the muscles and make sure both sides are getting an equal workout.

Final Thoughts…

If you are concerned about why one arm is stronger than the other, it is best to consult with a doctor or physical therapist.

There are several possible reasons for this imbalance, including muscle imbalances, previous injuries, and natural strength disparities.

There are several ways to correct an imbalance, including rehabilitation, proper warm-up and cool-down routines, and prioritising the weaker side.

Tracking your progress is also a good way to see if you are making the gains you want to make.

So those are a few possible reasons why one arm might be stronger than the other, and some tips on how to correct it.

Do you have any tips on how to correct an imbalance in arm strength? Let us know in the comments!

If you enjoy sport and use CBD to help with your recovery in between grueling workouts, then you are in the right place. Here at Sport CBDs, we train hard and recover the best way possible…

We have regular workouts (check out the YouTube channel), CBD news and CBD products to help you gain that edge! 

If you wanted to check out the reputable CBD we have on offer here at the site, then please head to the Sport CBDs Store (CLICK HERE). We also do fitness clothing and yoga accessories too. 

Until next time, all the best…

Beginners Upper Body Kettlebell Workout

Lee

Founder – Sport CBDs

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