There was no difference (54 — 58 % of MVIC) in
middle trapezius muscle activity between narrow and wide conditions when performed at 70 % of 1RM.
It appears that upper trapezius muscle activity is greater upright rowing movements, while
middle trapezius muscle activity seems to be higher during horizontal rowing movements, such as the bent - over row.
The researchers reported no difference in
middle trapezius muscle activity (22.7 ± 11.5 vs. 20.5 ± 10.9 %) between lat pull - downs regardless of forearm orientation.
Comparing the effect of stability during the inverted row exercise performed on a smith machine bar or using a suspension device, Snarr et al. (2013) reported that
middle trapezius muscle activity was no different between conditions (99 ± 36 vs. 98 ± 54 %).
Therefore, it appears
the middle trapezius muscle activity is maximised at the trunk angle achieved during the start and mid point of the deadlift.
In practical terms, it appears
the middle trapezius muscle is highly active during exercises that involve scapula retraction.
Investigating the effect of forearm orientation and grip width during the lat pull - down, Lusk et al. (2010) measured
middle trapezius muscle activity.
The researchers report that
middle trapezius muscle activity tended to be greater during the seated row with retraction but was not statistically different compared to the seated row without retraction.
When comparing the bent - over row to the upright row, superior
middle trapezius muscle activity was displayed during the bent - over row.
Comparing the effect of scapula motion, Lehman et al. (2004) measured
the middle trapezius muscle activity during the seated row with or without full scapula retraction.
Overall, it appears that
the middle trapezius muscle activity is greater during the start and middle phases of the deadlift compared to the top of the lift.
Middle trapezius muscle activity seems to be superior during traditional pronated pull ups performed with or without a suspension device, while lower trapezius muscle activity appears to be superior during pronated compared with supinated pull ups.
The middle trapezius muscle appears to produce its greatest muscle activity during horizontal pulling exercises such as the bent - over row, seated row and inverted row regardless of stability requirement or scapula retraction.
Not exact matches
It targets mainly the anterior deltoid, but it also works a handful of other
muscles — the lateral deltoid, supraspinatus, triceps brachii,
middle and lower
trapezius, as well as anterior serratus.
This places a large emphasis on your
middle trapezius and rhomboid
muscles in the center of your back.
Here's the thing: the
trapezius muscle has three regions — the upper,
middle and lower
trapezius — and each of them has a unique function.
The seated cable row exercises multiple
muscle groups and major joints in the body, and what's most important for us, it effectively works the entire back by training the erector spinae in the lower and
middle back, the
trapezius in the upper back, the rhomboids and latissimus dorsi in the
middle and the teres major in the outer back.
Which brings us to the lat pull - down, a highly effective exercise that primarily targets the latissiums dorsi, the large fan - shaped
muscle that makes up a big portion of your back, the lower and
middle trapezius, the rhomboids and the serratus, while also engaging the elbow flexors, biceps and brachialis as supporting
muscles; and is therefore an invaluable tool when it comes to building your back to bigger and better proportions.
The trapezoid, also known as
Trapezius, is a large
muscle that extends from the back of your neck and shoulders towards the
middle portion of your back.
Some research suggests that this lift has great benefits for the
middle trapezius and rhomboid
muscles which actually outweigh the benefits of the lat pulldown machine.
Upper
trapezius muscle activity displays superior
muscle activity during the top half of the deadlift, while the
middle trapezius displays superior
muscle activity during the bottom half.
Comparing the effect of deadlift type, Escamilla et al. (2002) compared the
middle and upper
trapezius muscle activity when performing different deadlift techniques, namely the conventional and sumo deadlift.
As the
trapezius is thought to comprise three regions that differ in
muscle action, the upper,
middle and lower fibers can be separated by their origin.
However, Ackland et al. (2011) explored the moment arm lengths of the neck
muscles and found that the upper and
middle fibers of the
trapezius displayed its greatest force producing capacity during neck extension.
They report no difference in either
middle or upper
trapezius muscle activity when comparing the sumo and conventional deadlift, with or without a belt.
During vertical pulling,
middle and lower
trapezius muscle activity does not appear to be affected by grip width, stability at the hand or pulling angle.
Comparing horizontal rowing - type exercises, Handa et al. explored the
muscle activity of the
middle trapezius during both the seated row and the bent - over row.
Therefore, the
middle trapezius appears to display its greatest
muscle activity during horizontal rowing exercises.
In practical terms, both upper and
middle trapezius display high
muscle activity at knee flexion angles of 31 — 60 degrees.
Both
middle and upper
trapezius muscle activity are maximised by using a pronated forearm position in the pull up.
While the external intercostal
muscles are the primary movers of the ribs during inhalation, many other
muscles assist with rib cage expansion and sternal elevation, including the rhomboids,
middle and lower
trapezius, and serratus anterior (5).
In upper crossed syndrome, tightness in the pectoral
muscles and latissimus dorsi and weakness in the rhomboids and
middle / lower
trapezius result in an exaggerated kyphosis of the thoracic spine and a depressed position of the sternum (1,2).
Singers must cultivate exceptional strength and coordination in the rhomboids,
middle and lower
trapezius, and other
muscles involved in scapular retraction, as well as the external intercostals, in order to maintain an elevated sternum and an expanded rib cage while singing / exhaling.
If you modify this movement by doing isometric holds at various points in the range of motion, it can potentially help do all of these things: correct poor scapular stability, improve scapular retraction, increase shoulder range of motion, and strengthen weak
middle and lower
trapezius muscles.
Muscles engaged while performing cable face pull:
trapezius (lower and
middle portion), posterior (rear) deltoid, rotator cuff, biceps, forearms
These
muscles include the rear delts, teres major, rhomboids and
middle trapezius... and they're critically important for maintaining good alignment in your body, in addition to being important for overall physique development.
The seated row works the
middle and lower
trapezius muscles strengthening, often neglected, postural
muscles.
Traditional pull ups do an excellent job at targeting both the
middle and lower
trapezius, rhomboids, pecs, deltoids, the latissimus dorsi (the broadest
muscle in the back) and the biceps.
The lower
trapezius fibers (one part of the larger
trapezius muscle group — see picture) are located in the
middle of the back.