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Summer Is Coming To An End

August 25, 2006

Newbury Park Athletic Club 
Current Events 
 
Parents Night Out 
September 8th 5:30pm-9:30pm 
Members: 1 Child-$25/2 or more $15 
Non-Members: 1 Child-$35/2 or more-$20 
 
Transformation Challenge 
Starts September 15th 
Orientations September 6th and 13th at 7pm 
 
R.I.P. (Real.Intense.Physical) 
Next Class Starts October 16th 
Preview Class will be on October 2nd and 4th at 7pm 
 
1 Year Renewal special ONLY $299 until August 31st!!! 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Core Training 
By John Platero  
 
 
If someone were to mention the core, people would think 
you were referring to the center of the earth or the center 
of a piece of fruit! The dictionary defines the core as the 
central or inner part of anything. So where is our center? 
In reality there are a few “centers” depending on what 
you are referring to. According to Shirley Sahrmann, a 
prominent professor of muscle and movement imbalances, 
every joint in our body has a path of instantaneous center 
of rotation (PICR). This is the deepest point of the joint 
where a rigid body rotates at a given instant of time. This 
center will normally be surrounded by cartilage, ligaments, 
tendons, a joint capsule and a deep set of muscles. For 
example, the shoulder complex is made up of the 
Sternoclavicular, Acromioclavicular, Glenohumeral, the 
Coraco-acromial arch and the  
Scapulothoracic joint. The core of each of these joints is 
surrounded by the soft-tissue mentioned before and in the 
case of the Glenohumeral joint, the deep muscles are the 
rotator cuff. These muscles, core or center is always 
affected by any movement and if it becomes injured, pain 
will impede motion.  
Our center of gravity is somewhere inside the body at 
the height of the spinal segments S-1 or S-2. The belly 
button or umbilicus lies at about L-3. If you were to 
imagine three to four spinal segments down, then you would 
be close to the center of gravity of your body. 
This would be your core. Or is it? 
Some experts refer to the cores as the Lumbo-Pelvic-Hip 
Complex and the thoracic and cervical spine. The spine is 
the Central Nervous System so should we be training the 
spine? Other physical therapists and health care 
professionals talk about an inner and outer system. Diane 
Lee, a prominent physical therapist talks about the inner 
unit of the pelvic girdle consisting of the transversus 
abdominis, multifidus and the diaphragm while the outer 
unit consists of three systems: the posterior oblique 
system which consists of the latissimus dorsi, gluteus 
maximus and the intervening thoraco-lumbar fascia, the 
anterior oblique system which consists of the external, 
internal obliques, the contralateral adductors of the thigh 
and the intervening anterior abdominal fascia and finally 
the deep longitudinal system which consists of the deep 
lamina of the thoraco-lumbar fascia, sacro-tuberous 
ligament and the biceps femoris muscle. Are you confused 
yet? 
Don’t worry, if you perform this workout, you will hit 
all the muscles that attach to the pelvis and the spine 
which is what all these people are talking about. Perform 
two to three sets of each exercise. 
 
The Plank 
 
Start with in a push-up position with your forearms on 
the ground. Make sure your elbows are directly under your 
shoulders. Keep your cervical spine in alignment (looking 
towards the ground) and your bellybutton drawn in and hold 
it for one minute. Now turn your entire body to a 
side.You’ll be resting on one elbow with the other arm at 
your side and one leg on top of the other. Hold that for 
one minute on each side and then return to the starting 
position for one last minute for a total of four minutes. 
 
 
Sit ups  
 
Perform sit ups with bent legs. Not more than a 100 
reps but not less than 25 reps. 
 
 
Roman Chair 
 
Make sure your ASIS (Anterior Superior Illiac Spine) 
which are the two little bones at the top of you pelvis are 
not resting on the pad and hold your body directly parallel 
to the ground for at least two-four minutes. Squeeze your 
glutes. This won’t be easy. 
 
100’s 
 
Lie on your back and raise both legs at a 45 degree 
angle from the ground. Keeping your arms fairly straight at 
your side, pulse or move them up and down in short quick 
movements for 100 reps. Keep your head off the ground, 
belly button drawn in and force your tongue into the roof 
of your mouth. If needed, add a posterior pelvic tilt to 
gently lengthen the lower back protecting the lumbar area. 
Activate the lats under the arm pits as the arms move and 
don’t forget to exhale as strongly as you inhale. 
 
 
 
Squats 
 
Perform two sets of light squats. 15-25 reps 
 
Bridging on one leg 
 
Lie on your back with your heels close to your glutes 
and raise your pelvis towards the ceiling. Without 
rotating, lift one leg off the ground. Do 15-20 reps with 
each leg. 
 
PNF Pattern with a cable 
 
Make believe you have a baseball bat in your hand and 
start with the high cable over one shoulder swinging the 
cable downward in a forty five degree angle across your 
body towards the ground. 15- 25 reps each side, then 
reverse the direction by grabbing the low cable and moving 
upwards back to over your shoulder. Keep your arms fairly 
straight 
 
4-Way Multi-Hip Machine 
 
Perform hip extension, adduction, abduction and hip 
flexion. Don’t forget to align the moving hip with the 
center (yes, the core) of the machine. Perform 20 reps of 
each movement. Keep the belly button drawn in and stand up 
straight 
 
One legged standing hamstring curls 
 
Perform one leg at a time for 8-10 reps. 
 
Seated Adduction 
 
Squeeze those inner thighs for 20-25 reps. don’t forget 
to align the axis to the middle of the moving hips. 
 
Hip Extension and Shoulder Extension on a ball 
 
Sit on a stability ball with your back to a cable 
crossover. A Nautilus or a Free Motion works best. If not, 
use a cable stack. Holding the cables in your hand, roll 
out on the ball so just your shoulder blades remain on the 
ball and your feet are flat on the floor. 
Keep the cables in your hands with your hands up in the 
air as you let your hips move towards the ground into hip 
flexion. As you reverse the motion with your hips moving 
towards the ceiling as in a bridge, execute a straight arm 
pull down with the cables. This way, both your glutes and 
your lats will fire at the same time working that posterior 
oblique system. Perform 20-25 reps. 
 
There, you have it. You’ve now addressed all the muscles 
that cross the hip and the spine (your core) in one 
workout! Your center is now centered!