Why does your back keep hurting even though you "rest it" every weekend? In most cases, the answer is a weak core – the deep muscles around your spine that have quietly switched off after years of sitting.
Understanding Your Deep Core Muscles
When most people think of core muscles, they picture the rectus abdominis, the visible "six-pack" muscle. However, the true foundation of spinal stability lies in four deeper muscle groups that work together like a cylinder around your spine:
- Transverse abdominis (TrA) – the deepest abdominal muscle, wrapping around your torso like a corset to provide compressive stability.
- Multifidus – small but powerful muscles that run along each vertebra, controlling segmental spinal movement.
- Pelvic floor muscles – forming the base of the cylinder, these muscles support your internal organs and work in coordination with your abdominals.
- Diaphragm – your primary breathing muscle forms the top of the cylinder. Proper diaphragmatic breathing is essential for core activation.
Research shows that in people with chronic lower back pain, the transverse abdominis and multifidus often become delayed in their activation or weaken significantly. Retraining these muscles is an essential part of physiotherapy-based rehabilitation.
How a Weak Core Leads to Pain
In Malaysia, where many adults spend long hours sitting at desks, driving through heavy traffic, or standing for extended periods in retail and service jobs, the deep core muscles gradually deactivate. When these stabilisers fail to engage properly, your body compensates.
The lower back muscles overwork, the hip flexors tighten, and spinal discs bear uneven loads. Over months and years, this can lead to disc bulges, facet joint irritation, and sciatica.
Strengthening the core is not about doing hundreds of sit-ups. In fact, traditional sit-ups place excessive compressive force on the lumbar discs and are no longer recommended by most physiotherapists. Instead, the focus should be on controlled, progressive exercises that teach your deep muscles to activate and sustain contraction.
Beginner Core Exercises
Start here if you are new to core training or recovering from back pain. Perform these exercises on a yoga mat or carpeted floor.
Diaphragmatic Breathing with TrA Activation
Lie on your back with your knees bent. Place one hand on your chest and one on your lower abdomen. Breathe in through your nose, allowing your belly to rise. As you exhale slowly, gently draw your lower abdomen inward as though you are tightening a belt by one notch.
Hold for 5 seconds while breathing normally. Repeat 10 times. This foundational exercise teaches your brain to reconnect with the transverse abdominis.
Dead Bug
Lie on your back with arms extended toward the ceiling and knees bent at 90 degrees. Slowly lower your right arm overhead and extend your left leg toward the floor simultaneously, keeping your lower back pressed flat against the mat.
Return to the starting position and repeat on the opposite side. Perform 3 sets of 8 repetitions per side. If your back arches off the floor, reduce the range of motion.
Bird Dog
Begin on all fours with your wrists under your shoulders and knees under your hips. Extend your right arm forward and left leg backward, forming a straight line from fingertips to toes.
Hold for 5 seconds, then return and switch sides. Perform 3 sets of 8 repetitions per side. Keep your hips level throughout the movement.
Progressing to Intermediate Exercises
Once you can comfortably perform the beginner exercises with good form for two consecutive weeks, progress to the following.
Modified Plank
Begin on your forearms and knees. Engage your core by drawing your navel inward and maintain a straight line from your shoulders to your knees.
Hold for 20 to 30 seconds, building up to 45 seconds over several weeks. When you can hold for 45 seconds with good form, progress to a full plank on your toes. Perform 3 sets.
Pallof Press
Attach a resistance band to a door handle or sturdy post at chest height. Stand sideways to the anchor point, holding the band at your chest with both hands. Press the band straight out in front of you and hold for 3 seconds, resisting the rotational pull.
Slowly return to your chest. Perform 3 sets of 10 repetitions per side. This exercise trains your core to resist rotation, a critical function during daily activities and sports popular in Malaysia like badminton and futsal.
Common Mistakes to Avoid
- Holding your breath – always breathe continuously during core exercises. Breath-holding increases intra-abdominal pressure excessively.
- Rushing repetitions – core training is about control, not speed. Slow, deliberate movements produce far better results.
- Overarching the lower back – if you cannot maintain a neutral spine, reduce the difficulty of the exercise.
- Skipping the basics – progressing too quickly before mastering TrA activation often means the superficial muscles dominate while the deep stabilisers remain weak.
If you experience any sharp pain, radiating leg pain, or worsening symptoms during these exercises, stop immediately and consult a qualified physiotherapist for an orthopaedic assessment.
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Disclaimer: This article is for educational purposes only and does not constitute medical advice. Always consult a licensed physiotherapist or healthcare professional for diagnosis and treatment. In case of emergency, contact your nearest hospital or dial 999. Read our editorial policy.
Last reviewed: 3 March 2026 by Ahmad Razif bin Mohd Noor, BSc Physiotherapy (UKM), MSc Orthopaedic Manual Therapy