Sentences with phrase «shoulder adduction»

Therefore, the superior performance of the flat bench press over the incline bench press for the sternocostal head is probably because there is a greater horizontal shoulder adduction moment in the flat and decline variations, but a larger shoulder flexion moment in the incline variations.

Ackland et al. (2008) showed that the pectoralis major (superior sternocostal head) displayed a peak moment arm length for shoulder adduction at 41 degrees (length = +32.9 mm) and a minimum at 120 degrees (length = -17.7 mm), while the pectoralis major (inferior sternocostal head) displayed a peak at 64 degrees (length = +33.6 mm) and a minimum also at 120 degrees (length = -16.2.

Therefore, the higher level of activation in the sternocostal head during the wide grip bench press compared with the close grip bench press is probably because there is a greater horizontal shoulder adduction moment in the wide grip variations.

That is because the pull - ups primarily use shoulder adduction and therefore tend to work the outer lats, generating width across the back.

In direct contrast, the pectoralis major has a very large shoulder adduction moment arm length, making it perhaps the most effective muscle for moving in the opposite direction (bringing the arms down to the anatomical position from out to the sides).

In pull ups, the arms are pulled downwards and into the midline of the body — a movement called shoulder adduction.

Simply put, pull ups utilize shoulder adduction.

There seem to be significant differences between the two heads of the pectoralis major insofar as they perform shoulder adduction or abduction.

Shoulder adduction involves bringing them back down again.

Ackland et al. (2008) reported the anterior and middle deltoid display similarly large peak shoulder abduction moment arm lengths (anterior = 30.2 mm; middle = 29.1 mm), while the posterior deltoid displayed a peak shoulder adduction moment arm length of -15.9 mm.

The anterior deltoid displays a peak moment arm (length = 16.8 mm) at zero degrees of horizontal adduction (arms to the side) and its lowest moment arm (length = zero) at 140 degrees of shoulder adduction (arm across body).

Therefore, it appears that the latissimus dorsi is a prime mover during shoulder adduction in the frontal plane, in combination with the teres major (Ackland et al. 2008).

Your pecs are designed for shoulder adduction, where your upper pecs will adduct your arms to your front and high up.

Pull ups tend to use shoulder adduction, where the elbows come down and back from the sides.

In contrast, the sternocostal head of the pectoralis major provides one of the largest shoulder adduction moment arms of the upper body musculature.

The participants were told to wrap the non-throwing arm under the throwing arm just proximal to the elbow and pull the arm into horizontal shoulder adduction, across the body, to the point of «mild discomfort».

It provides both shoulder extension and shoulder adduction.

In general, it seems that compound exercises that involve carrying an external load with a flexed trunk (as in deadlift or bent - over row), shoulder adduction or shoulder extension (as in horizontal rows, pull - ups and lat pull - downs) all produce very high trapezius muscle activity.

It acts mainly on the shoulder joint, being the prime mover in both shoulder adduction and shoulder extension (and a strong synergist in internal rotation).

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).

Overall, the pectoralis major has a large moment arm length of between 30 — 55 mm for shoulder adduction (Keuchle et al. 1999).

The pectoralis major has moment arms for several movements at the shoulder, including horizontal adduction (also called horizontal flexion), shoulder adduction (or abduction), shoulder flexion (or extension) in the scapular plane, shoulder flexion (or extension), and shoulder internal rotation (Keuchle et al 1997; Keuchle et al 1999; Ackland et al. 2008).

In this plane, the superior and inferior fibers display the largest peak moment arm lengths, while the middle fibers display the smallest, implying that the superior and inferior fibers are most important for shoulder adduction.

Therefore the posterior deltoid functions in antagonism to the anterior and middle deltoid contributing to shoulder adduction.