Sentences with phrase «scapular plane»

Therefore, it is likely the posterior deltoid functions as a stabilizer in the scapular plane.

The three regions of the latissimus dorsi appear to function similarly as primary shoulder extensors in the scapular plane (although the superior and inferior fibers seem to have greater peak moment arm lengths than the middle fibers) while displaying peak moment arm lengths at very different joint angles.

In the scapular plane, the anterior and middle deltoids are both primary shoulder flexors and display their greatest force producing potential with the arm above horizontal.

Comparing the effect of shoulder joint angle, Park et al. (2013) explored the difference in latissimus dorsi muscle activity during three angles (60, 90 and 120 degrees) of shoulder elevation in the frontal, sagittal and scapular plane.

In the scapular plane, peak moment arm lengths of the superior, middle and inferior regions are displayed at 71, 10 and 10 degrees, respectively.

In this plane, the superior and inferior fibers seem to have greater peak moment arm lengths than the middle fibers, implying that the superior and inferior fibers are most important for scapular plane shoulder extension.

Ackland et al. (2008) reported that the middle deltoid displayed a similarly large shoulder flexion muscle moment arm of 33.1 mm at 120 degrees, indicating that both the anterior and middle deltoids are capable of producing large forces during shoulder flexion in the scapular plane.

The latissimus dorsi is a primary shoulder extensor in the scapular plane but the peak moment arm lengths vary widely between regions.

Ackland et al. (2008) showed that the pectoralis major (clavicular head) displayed a peak moment arm length of 30.2 mm at 120 degrees of shoulder flexion (arms above head) and a minimum moment arm length at 2.5 degrees (length = +3.1 mm) of shoulder scapular plane flexion.

In contrast, the inferior part of the sternocostal head of the pectoralis major provides a large shoulder scapular plane extensor muscle moment arm length.

However, as the moment arm length rises drastically as the arm is elevated in the sagittal plane from 25 degrees upwards, we can tentatively conclude the clavicular head functions as a shoulder flexor in the scapular plane while the arm is moving from at least horizontal to 120 degrees (arms above head).

Key shoulder movements that involve the pectoralis major include shoulder horizontal adduction (moving the arms together in the transverse plane at shoulder height), shoulder adduction (moving the arms down to the sides, from shoulder height), shoulder scapular flexion or extension (moving the arms to or from shoulder height in the scapular plane in front of the body), and shoulder flexion or extension (moving the arms to or from shoulder height in front of the body).

Flexion and extension are often measured in the scapular plane, which is roughly half - way between the frontal plane and the sagittal plane.

Therefore, the pectoralis major (clavicular head) seems to act as a primary shoulder scapular plane flexor.

● Actual shorter leg ● Rotations of lower limbs ● Knock knees ● Bowed legs ● Anterior rotation of pelvis ● Posterior tilt of pelvis ● Any rotation of the scapular plane or pelvis.

● And a scapular plane ahead of the glutes are mixed component feet.

● Slouched back posterior scapular plane compared to glutes (think Michael Phelps).

The typical pattern is an anterior head position for malocclusion (overbite), with a flat back and anterior scapular plane and a military (straight neck) for an underbite.