Top 3 posture types leading to back pain

You’ve tried pilates, yoga, ergonomic back supports, and back braces, but your chronic back pain persists. So what is the true cause of that nagging pain in your lower back? The answer is: posture.

While there are numerous remedies for back pain, they are not one-size-fits-all. Learn first to identify your posture and its stress points in order to find the right solution, instead of potentially worsening your condition with the wrong one.

Understanding posture

Posture refers to how your body is positioned when you are sitting or standing. While the concept sounds simple, maintaining a neutral posture does not always come naturally and often requires greater awareness.

It is also important to understand that no posture is inherently “bad.” Our bodies are designed to move and adapt to different positions. However, staying in the same posture for prolonged periods—especially slouched or imbalanced positions—can lead to increased loading on certain segments of the spine instead of allowing the load to be more evenly distributed as it would in a neutral posture.

Understanding what happens when these “poor: posture is sustained for too long helps us better appreciate what contributes to strain in our lower back.

3 most common poor postures types in Singapore

There are three “faulty” postures commonly seen in the modern setting. They are:

1. Arched-back
2. Flat-back
3. Swayed-back

1) Arched back posture

Scientifically known as the kyphotic-lordotic posture, it is often mistaken for the ideal posture as a result of erroneous media representation: numerous ads depict models posing in this posture, which features an upright back.

Why does it happen?

It is identified by an arched spine, a facedown pelvis, and pushed-back chest, and has multiple causes most commonly a core muscle and a more forward centre of gravity due to increased abdominal mass. A weak rectus abdominus, specifically in the lower region, draws the pelvis down and rolls the belly forward, thus facilitating the arched back. To compensate for this increased arch of the lower back, the upper back (thoracic) has to round forward more giving rise to this kyphotic-lordortic posture. This posture, if sustained for prolonged periods of time can lead to increased compressive force at the lower lumbar spine segments which can lead to low back pain.

What makes the Arched-Back Posture worse?

Stress points that aggravate the arched back posture can include extended walking and standing, running, and lying flat on a hard bed.

Don’t

• Sit on the edge of your chair with an upright back.
• Sit for prolonged periods of time, break up your sitting by standing up or stretching every 30 min. The best posture is a moving posture.

Do

• Sit deep in your chair, with your back fully on the backrest. Your lower back “switches off” as there’s no pressure on it.
• Squat, cycle, and practise yoga poses like Cat Stretch and knees-to-chest to open up the lower back.
• Reverse crunches. They’re double duty, strengthening weak abs, and rounding the back.

Physiotherapy treatment for Arched Back Posture

Physiotherapy management for an arched back posture focuses on restoring balance between muscles that may be tight and those that may not be providing sufficient support. This typically involves gentle techniques and exercises to release tight muscles, such as the hip flexors and lower back muscles, while also strengthening the muscles that help support a more balanced spinal position, including the abdominal and gluteal muscles. Improving mobility around the pelvis is also important, as a pelvis that moves more freely—much like a well-oiled door hinge—allows the spine to settle into a more comfortable and efficient position.

Once this balance begins to improve, the next step involves motor control retraining. This stage helps you gradually learn how to maintain a more “stacked” or neutral spinal posture, where the head, ribcage, pelvis, and hips are better aligned. Motor control retraining is done through targeted exercises based on the specific weaknesses of the individual, hence the exercises varies from individuals and are targeted to the specific activities the particular individual wishes to return to.

Over time, these exercises help the body develop new movement patterns and muscle memory, making it easier to adopt healthier postures during everyday activities such as sitting, standing, and walking. The goal is not to force a rigid posture, but to help your body move and support itself more efficiently, reducing strain on the spine.

2) Flat-back Posture

The Flat back posture, sometimes described as a slouched or “C-shaped” posture, occurs when the natural inward curve of the lower back becomes flattened. Instead of the spine maintaining its normal gentle curves, the back appears more rounded from the upper back down to the lower back.

This posture can lead to low back pain because the spine loses its natural ability to distribute load evenly. When the lower back curve flattens, the spinal discs, ligaments, and surrounding muscles have to absorb more stress than they are designed for. The back muscles may also have to work harder to keep the body upright, which can lead to muscle fatigue, stiffness, and discomfort over time.

Flat back posture is commonly seen in individuals who spend long hours sitting and slouching, especially during desk work. People who are tall or who have reduced strength in the back and gluteal muscles may also be more prone to adopting this posture.

Physiotherapy treatment typically focuses on improving posture awareness, strengthening the back and gluteal muscles, and restoring the natural curve of the lower back through targeted exercises. The goal is to help the spine return to a more balanced position so that load is shared more evenly through the lower back, thereby reducing low back strain and hence pain.

3) Swayback Posture

Swayback posture is sometimes described as a “lazy” or relaxed standing posture. It is characterised by the pelvis drifting forward, the upper body leaning slightly backward, and the head jutting forward. In this position, the hips tend to rest in front of the ankles while the ribcage falls behind the pelvis.

People often adopt this posture because it requires very little muscular effort. Instead of using the buttock, abdominal, and leg muscles to support the body, the posture relies more on passive structures such as ligaments and joints to hold the body upright.

Over time, this can lead to low back discomfort because the lower spine and surrounding joints take on more load than they should. The abdominal and gluteal muscles may become underactive, while the lower back structures are placed under continuous stress. At the same time, the forward position of the head can place additional strain on the neck and upper back.

Physiotherapy management focuses on restoring a more balanced “stacked” alignment, where the pelvis sits more directly over the ankles and the ribcage is better supported above the pelvis. This is usually achieved through improving posture awareness and strengthening key support muscles, particularly the gluteal and abdominal muscles, to help the body maintain a more efficient and comfortable standing posture.

Experiencing back pain? Click here to find out more about physiotherapy for back pain relief and how Core Concepts can help you resolve pain.

References

1. May S, Lomas D. 2010. Posture, the lumbar spine and back pain. In: JH Stone, M Blouin, editors. International Encyclopedia of Rehabilitation. 
2. O’Sullivan PB, Mitchell T, Bulich P, Waller R, Holte J (2006) The relationship between posture and back muscle endurance in industrial workers with flexion-related low back pain. 
3. Tüzün, C., Yorulmaz, I., Cindaş, A., & Vatan, S. (1999). Low back pain and posture. Clinical rheumatology, 18(4), 308-312. 
4. Malik, A. N., Rasul, H. N. u. & Siddiqi, F. A. (2013) Cross sectional survey of prevalence of low back pain in forward bend sitting posture. Rawal Medical Journal, 38 (3), 253-255.
5. Widhe, T. (2001). Spine: posture, mobility and pain. A longitudinal study from childhood to adolescence. European Spine Journal, 10(2), 118-123.