The Importance of Muscular Endurance in Core Stability

If you suffer from chronic low back pain and want to experience freedom from your pain, you will want to pay particular attention to your core.  To finally gain control of your back pain and reduce the chance of a relapse, you have to improve the condition of your core.  The term “core” may have you thinking of Pilate’s, Yoga, or doing sit-ups until your six pack burns.  Unfortunately the term “core” is frequently misused and the true nature of the core is greatly misunderstood.

To understand the true nature of your core, you need to understand your body design.  Your bones, ligaments, and joint capsules (passive restraints) provide stability toward the end of joint motion (ROM).  They don’t provide much stability in the neutral position.  That’s where the muscles come in to play, and provide support and stiffness.  Your body muscles are set up in three basic layers.

The outer layer of muscles are your large muscles.  These are big, strong muscles that are designed to move your skeleton.  They also are the muscles that give your body its shape.  The rectus abdominus muscles (the “six-pack”) is an outer layer muscle, and technically not part of your core.

You have a middle layer of muscles that lie beneath the outer layer of muscles.  These muscles connect to your spine and are designed for stability and control.  These are muscles of endurance that allow you to maintain good posture while you go about your day.  These middle layer muscles work continually to protect your spine as you put your body through its many different positions – sitting, bending, twisting, running, jumping, etc. If your core is weak, you will be susceptible to injury as you try to sustain static postures (i.e. sitting), or try to perform dynamic activities (i.e. playing soccer).

You also have a deep layer of muscles that act as “sensors” for your nervous system.  These small muscles attach to your spine and give continual feedback to your brain with each joint movement. These deep muscles are muscles of endurance and enable you to maintain good posture, balance, and position sense.

The muscles of your middle layer and deep layer make up your true core.  And because your core is composed of muscles of endurance, you must work it differently.  You can’t just do the normal exercises promoted in most health clubs or gyms.  Focusing on strength doesn’t help the true core.  Muscular endurance, posture, and balance must be your focus if you want to improve the condition of your core.

Your body stability is a dynamic function and includes:

• Static positioning
• Controlled movement
• Alignment in sustained postures
• Movement patterns that reduce body strain, avoid injury, and allow efficient muscle action

Your body stability and movement patterns may be altered by any combination of the following:

• Injuries
• Insufficient muscular strength or endurance
• Poor neuromuscular control
• Fatigue

To improve the condition of your core, research has shown that very moderate levels of muscle activity can be enough to create stable joints.  To work the endurance muscles of your core, only about 10% of your maximum contraction is needed to provide joint stability.  In contrast, when doing strength training you have to work at 70-80% of your maximum contraction in 1-2 sets of 8-12 repetitions.

This is great news!  Even if you are suffering from chronic back pain today, you can take active steps towards recovery.  I have been working with patients with chronic back pain since 1992, and have seen many amazing recoveries from patients following our easy program.  If you are committed to our program of core stabilization exercises, you will in most cases be able to gain control of your back pain within 4 to 6 weeks.

No drugs.  No surgery.  No expensive traction devices.  No high-tech computerized exercise devices.

Just a series of core stabilization exercises that are so simple, I’ve pictured the basic part of the program on this site.  Sounds simple?  That’s because it is.

Just click here to see the core stabilization program.