A Tour of the Core

As a society we are core obsessed. If a workout has the word “core” in it, it’s supposed to be good for us.  Apparently we should seek out such workouts because if “core” is involved we will become stronger, healthier and more attractive. I must admit that when I first hear the word core uttered, it was  shrouded in mystery and sounded difficult, perhaps even threatening. So what’s the big deal about core workouts? What’s all this hype about, and does it have to be difficult to be a good workout? Let’s unveil some of the mystery behind the core musculature.

For our purposes we’ll talk about two types of muscles; postural muscles and phasic muscles. Postural muscles help you maintain posture and keep you upright against the force of gravity. They support your frame and help with endurance, balance, and strength. Postural muscles are also called core muscles. They are deep within the body (at the core).

Phasic muscles allow you to move quickly and efficiently. They are the “doers.” To pick up a cup, kick a ball or stand up from a chair, phasic muscles are the first to volunteer for the task. The phasic muscles help you perform a task, but the postural muscles help you to maintain it. Sometimes the phasic muscles will try to do the job of the postural muscles. Unfortunately, since they are not built for endurance they often wear themselves out and get hurt. This is why it’s so important to strengthen the core muscles. Injuries often arise because phasic muscles are not strong enough to repeatedly perform a task that requires the support of core/postural muscles. The core muscles really “have the back” of the phasic muscles. If the phasic muscles are not quite strong enough (and this happens even with body builders) the core muscles step in to help out. So the core muscles must pitch in to help, or havoc ensues.

The core workouts that we hear about often focus on the deep abdominal muscles, which are important muscles to support our backs. However, postural muscles also include muscles in the neck, chest, hips and legs. Therefore, it’s important to try to strengthen the full range of core muscles in the body.  Several common yoga postures can help strengthen the core muscles, particularly if you hold them for 30 seconds or so. Here are a few examples.

  • Vasisthasana (Side Plank) engages the obliques, quadratus lumborum (the “hip hiker” muscle in the low back/hip area), and spinal extensors as they work against gravity to maintain the pose.
  • Setu Bandha Sarvangasana (Bridge Pose) is a good supportive pose that works many of the hip and leg muscles as they hold the spine up.
  • Utkatasana (Chair Pose) is a vigorous and powerful pose known for increasing strength in the quads and gluteus muscles. It also works the spinal extensor muscles as you reach your arms overhead.
  • Vrksasana (Tree Pose) like many balance poses, standing on one leg can work the hip, leg and deep abdominal muscles. Try to keep the hip of the standing leg from drooping as it’s important to keep the quadratus lumborum muscle strong to reduce injury to the back.

If you’d like a personalized sequence or an individual session focused on your health goals, please drop me a line at lorie@wellnesswithlorie.com. You can also join me for one of my classes. See my offerings on my schedule page.

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