Muscle imbalances: 7 signs they may be contributing to your pain

When pain keeps coming back, you may wonder whether a muscle imbalance is part of the problem. Maybe one side of your body feels stronger than the other. Perhaps certain muscles always feel tight, or you notice that your body moves differently on one side.

A muscle imbalance can affect the way you move and how your body handles stress. Not every imbalance causes pain or an injury. Some differences between muscles or sides of your body are normal. The complex relationship between strength differences and injury risk can vary from person to person.

Understanding the signs of a possible muscle imbalance can help you decide when it may be time for a professional evaluation. A physical therapist at KC Rehab can provide an assessment.

What is a muscle imbalance?

A muscle imbalance happens when certain muscles are stronger, weaker, tighter or more flexible than the muscles they work with. It can also refer to a noticeable difference in strength or function between the two sides of your body.

Your muscles work together to control your joints and create movement. If some muscles are not contributing as effectively as others, your body may change the way it moves to complete a task. Those changes can sometimes place more stress on other muscles, joints or tissues.

Muscle imbalances may develop for many reasons, including:

• Repeating the same movements at work or during sports

• Favoring one side of your body

• Spending long periods in one position

• Returning to activity after an injury

• Differences in strength or flexibility

• Changes in your usual activity level

So, how can you tell if a muscle imbalance may be affecting you? These seven signs can provide some clues.

1. One side feels noticeably weaker

Asymmetry in strength between limbs on your left and right sides may point to a muscle imbalance.

You might notice that one leg gets tired faster during stairs, squats or running. One arm may struggle with a weight the other arm can lift easily. A small difference can be normal, especially if you have a dominant side. However, a larger difference that affects your activities may be worth evaluating.

2. The same area keeps feeling tight

Muscles that repeatedly feel tight may be responding to the way you move rather than simply needing more stretching.

For example, one muscle group may work harder because another muscle group is not providing enough strength or control. That extra demand can contribute to feelings of tightness, fatigue or discomfort.

3. Your pain keeps returning

Does your pain improve for a while and then return when you resume your normal routine?

Recurring pain can have many causes, and a muscle imbalance may be one factor. If your movement pattern continues to place extra stress on the same area, your symptoms may keep coming back even after temporary relief.

A physical therapist can look beyond the painful area to see how nearby joints and muscles may be affecting it.

4. You move differently on one side

Watch yourself perform a familiar movement. Does one knee turn inward during a squat? Does one shoulder rise higher when you lift your arms? Do you shift your weight toward one leg when standing?

These differences do not prove that you have a muscle imbalance. However, noticeable movement differences may give your physical therapist useful information about your strength, mobility and muscle control.

5. Your posture changes when you get tired

You may start your workday sitting or standing comfortably but notice your position changing after several hours. Your shoulders might round forward, or you may begin leaning to one side.

Fatigue can make it harder for your muscles to maintain a position. If certain muscles lack strength or endurance, other muscles may have to work harder to compensate.

6. Certain movements consistently trigger pain

Pay attention to when your symptoms appear.

Maybe your knee hurts every time you run, your shoulder bothers you when reaching overhead or your lower back aches after prolonged standing. A pattern like this may help identify movements that place extra stress on an area.

For example, KC Rehab notes that hip weakness may affect knee pain and limited ankle motion may influence problems farther down the leg.  

Your symptoms alone cannot tell you exactly which muscles need attention, which is why an individual assessment can be valuable.

7. You have trouble with balance or control

Muscle strength and control help you stay steady during everyday activities.

You may notice a possible problem if you:

• Feel much less stable on one leg

• Struggle to control a squat or step-down

• Frequently shift your weight to one side

• Have difficulty maintaining your balance

• Feel unsteady during activities that used to be easy

Balance problems can have many causes, so they should not automatically be blamed on a muscle imbalance.

How can physical therapy help with a muscle imbalance?

You cannot always identify a muscle imbalance just by looking in the mirror or noticing which area hurts. Pain does not necessarily tell you which muscle is weak, tight or working too hard.

A physical therapist can perform an evaluation that may include your:

• Strength

• Range of motion

• Balance

• Posture

• Walking or running pattern

• Joint movement

• Muscle control

• Pain triggers

KC Rehab uses these types of assessments to identify movement patterns that may be contributing to symptoms and develop an individualized treatment plan.  

Treatment may include exercises designed to improve strength, flexibility, mobility, balance and movement control based on your specific needs. It may target uncomfortable problems like muscle tension.

Find out what may be contributing to your pain

A muscle imbalance is only one possible reason for pain, and you do not have to figure out the cause by yourself. If pain keeps returning, limits your activities or changes how you move, a physical therapy evaluation can help you better understand what is happening.

At KC Rehab, a physical therapist can assess your movement, identify areas that may need attention and create a personalized plan to help you work toward moving with less pain.

Contact our team today for more information or to schedule an initial appointment.

Frequently asked questions

What is a muscle imbalance?

A muscle imbalance happens when certain muscles are stronger, weaker, tighter or more flexible than the muscles they work with. You may also have differences between the left and right sides of your body. Some differences are normal, but larger imbalances may affect how you move.

Can a muscle imbalance cause pain?

A muscle imbalance may contribute to pain, but it is not always the direct cause. If some muscles are not providing enough strength or control, other muscles and joints may take on more stress. A physical therapist can help determine whether an imbalance may be related to your symptoms.

What are common signs of a muscle imbalance?

You may notice one side feels weaker, certain muscles repeatedly feel tight or the same pain keeps returning. You may also move differently on one side, have trouble with balance or notice that certain activities consistently trigger your symptoms.

What causes muscle imbalances?

Muscle imbalances can develop for many reasons, including repeated movements, favoring one side of your body, previous injuries and changes in your activity level. Your work, sports and everyday movement habits may also play a role.

Can poor posture cause a muscle imbalance?

Your posture and muscle function can influence each other. Spending long periods in the same position may affect how certain muscles work, especially if you do not change positions often. However, posture alone does not mean you have a muscle imbalance or that you will develop pain.

How do you know which muscles are weak?

It can be difficult to identify muscle weakness on your own. A physical therapist can test your strength, range of motion, balance and movement patterns to determine which muscles may need more strength, endurance or control.

Can stretching fix a muscle imbalance?

Stretching may help if limited flexibility is part of the problem, but stretching alone may not address every muscle imbalance. You may also need strengthening, mobility or movement-control exercises based on what your physical therapist finds during your evaluation.

How long does it take to correct a muscle imbalance?

Your timeline depends on what is contributing to the imbalance, how long you have had symptoms and your overall health and activity level. Following an individualized exercise program consistently may help you make gradual improvements.

Should you exercise if you think you have a muscle imbalance?

You may still be able to exercise, but you should avoid assuming that one specific muscle needs to be strengthened or stretched. If exercise causes pain or you notice a major difference between sides, a physical therapist can help you choose appropriate activities.

How can physical therapy help with muscle imbalances?

Your physical therapist can evaluate your strength, flexibility, posture, balance and movement patterns. Based on the findings, you may receive exercises designed to improve strength, mobility and muscle control while addressing factors that may be contributing to your pain.