The core is one of the body’s most essential muscle groups. It facilitates nearly every movement we do, from sitting and standing to bending, walking, and running. Yet despite playing a pivotal role in our daily function, it remains one of the most frequently overlooked and misunderstood regions of the body.
A popular misconception is that core strength is defined through visible abs. In our world shaped by social media-fuelled ideas, a six pack has become one of the most dominant symbols of fitness – yet this narrow perception often leads to some of the less glamorous (yet crucial) muscles within the core being neglected. The resulting imbalance core can cause a multitude of problems, ranging from poor posture and mild discomfort, all the way to chronic and near-debilitating pain.
In this blog, we will be examining the science behind the core and why this complex muscle group must be trained and understood as one unified system. We will be looking at how core strength influences both athletic performance and everyday movement, and why a holistic approach to core training is essential for long-term wellbeing.
What is the core?
When we talk about ‘the core’, we are referring to the group of muscles that surround the spine and pelvic area. These are the muscles that work together to stabilise the body, support movement and distribute load evenly.
One analogy I often use in the clinic is to imagine the core as a cardboard box. For the box to function properly, it must be strong, stable and dry on all sides. If even one side is damaged or wet, then the box will collapse entirely.
Now then, picture somebody with an extremely tight and overworked lower back, but a weak front and side core. It is the same problem as having one side of your box dry and the others wet. These are the exact conditions that allow a bad back to thrive because the lower back is being forced to do all the work while the rest of the core is failing to support it. When this happens, pain is the body’s way of signalling that something isn’t right and needs addressing. Left unchecked, this imbalance will only worsen as the neglected muscles continue to regress while the lower back becomes increasingly strained. We must heed these warnings and train the core as a whole to prevent dysfunction from spiralling out of control.
This effect can be particularly damaging when it occurs around the spine. The spine itself is an incredibly stable column made up of vertebrae and disks, designed to be both stable and flexible. It enables free-flowing daily movements like running, bending and lifting weights, but if we have weak musculature around the spine, then we are forcing the spine to bear more load than it should. In this case, our goal should be to carry out balanced core training to build anatomical scaffolding around our spine to help support and distribute load evenly. Without it, the burden falls disproportionately on the spinal column or posterior core muscles, increasing the risk of strain and injury. Again, think ‘cardboard box’.
By strengthening and conditioning the lateral and anterior core, we can help support the spinal structure in every plane of movement: from side to side, forwards and backwards, and through rotation. The best method to achieve this is through progressive resistance training – starting with what you feel most comfortable with, and then gradually increasing the movement difficulty. It is important to remember that the aim here is not to push your body to its limits but rather to recalibrate the balance of your core through carefully employed and sensible exercise.
A strong core that helps support everyday function is also important for athletes too. To illustrate this, I shall again borrow from my ever-reliable catalogue of analogies.
This time, imagine the human body being similar to a car engine. For the engine to run smoothly, the car needs all its pistons working in harmony and taking their fair share of the load. If one piston fails, then we have an insufficient system whereby energy is lost throughout, and the car will lose power and struggle to perform correctly.
In sport, this energy loss is far more than just a minor inconvenience. For example: a winger in rugby needs to produce a lot of power through one leg to cut or change their direction and evade defenders. A strong core is essential here because it acts as a central link transmitting power from the legs to the upper body and vice versa. With a weak or imbalanced core, this is like having a faulty piston in our engine causing energy leakage. The body will struggle to control and coordinate movements, and this inefficiency can reduce power outputs by up to 10% and slow down reaction times. For athletes, these fine margins can often be the difference between triumph and defeat.
And lastly, a strong core does more for us than just support movement – it helps nurture motivation and mental wellbeing. Abs are not just for decoration. When we feel strong, we tend to feel more active and move better, eat better and sleep better. Feeling more alert naturally brings about a desire to maintain a healthy lifestyle, which is one of the most imprtant ways to prevent pain, build resilience and stay well throughout every stage of life.
If you want to learn more about your core and what you can do to improve it, please feel free to fill out our request for a free phone call or free discovery visit so that we can help you on your journey to a stronger and healthier lifestyle.
Written by Ari Marsden, Sports Therapist
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