Reinold et al. (2004) found that external rotation exercises produced inferior
middle deltoid muscle activity, while prone horizontal abduction with external rotation produced large (82 %) EMG activity.
In support, Kohler et al. (2010) showed no difference in
middle deltoid muscle activity when comparing the seated dumbbell and barbell shoulder press.
Lateral raise - type exercises appear to produce superior
middle deltoid muscle activity, while horizontal abduction exercises produce high levels of posterior deltoid muscle activity.
Saeterbakken et al. (2013) showed that the dumbbell shoulder press produced superior
middle deltoid muscle activity compared with the barbell shoulder press (although the muscle activity was half that of the anterior deltoid).
They reported superior anterior and
middle deltoid muscle activity during the 60 % of 1RM condition but in not the 80 % of 1RM condition.
In contrast, it is unclear whether the free weight bench press produces superior
middle deltoid muscle activity.
When comparing the standing dumbbell and barbell shoulder press they showed the dumbbell press produced superior
middle deltoid muscle activity.
Lateral raise - type exercises produce superior
middle deltoid muscle activity, while horizontal abduction exercises produce high levels of posterior deltoid muscle activity.
In contrast, comparing the stable and instable seated dumbbell shoulder press displayed no difference in anterior and
middle deltoid muscle activity.
Lastly, they showed that the standing rather than the seated dumbbell shoulder press produced superior
middle deltoid muscle activity, and a non-significant trend to greater muscle activity from the standing barbell press compared with the seated variation.
Kohler et al. (2010) showed that the seated barbell press with a stable base of support (sitting on a bench) produced greater
middle deltoid muscle activity and no difference in anterior deltoid muscle activity.
In contrast, McCaw et al. (1994) found greater
middle deltoid muscle activity during the free weight bench press compared with the machine bench press at 60 % 1 RM but not at 80 %, although in both cases the
middle deltoid muscle activity was approximately half that of the anterior deltoid.
McCaw & Friday (1994) also found that
the middle deltoid muscle activity was significantly greater during the free - weight bench press compared with the Smith machine version.
McCaw & Friday (1994) compared isoinertial loads at 60 and 80 % of 1RM and reported a main difference in both anterior and
middle deltoid muscle activity at 60 % of 1RM (the free - weight bench press was superior) but found no difference at 80 % of 1RM.
They reported that
middle deltoid muscle activity was greater in the free - weight condition at both 70 % and 90 % of 1RM.
Exploring the effect of implement, Schick et al. (2010) found that
middle deltoid muscle activity was significantly greater when performing the free - weight bench press compared with the Smith machine variation.
The machine bench press reduces the already relatively low
middle deltoid muscle activity, as does the concentric - only variation.
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 exercise has a powerful ability to strengthen more than a dozen of
muscles, including the latissimus dorsi
muscles of the back, posterior
deltoids, triceps, biceps and lower and
middle traps.
Randall's Build
Muscle Fast Deltoid Workout Not rated yet This deltoid workout really blasts your shoulders to build muscle fast and hits the front, middle and rear del
Muscle Fast
Deltoid Workout Not rated yet This deltoid workout really blasts your shoulders to build muscle fast and hits the front, middle and rear de
Deltoid Workout Not rated yet This
deltoid workout really blasts your shoulders to build muscle fast and hits the front, middle and rear de
deltoid workout really blasts your shoulders to build
muscle fast and hits the front, middle and rear del
muscle fast and hits the front,
middle and rear delotids.
The following exercises show examples of moves targeting the shoulders — the front,
middle, and rear
deltoids as well as the rotator cuff
muscles.
The lateral
deltoid (L. latus, side; deltoides, triangular) refers to the
middle (side) head of the
deltoid muscle.
When you lift your arms straight out to your sides, the
middle (lateral) and rear
deltoids work hard, along with the supraspinatus, one of the four rotator cuff
muscles, which lies beneath the
deltoid.
Strength band lateral raises work the medial (
middle)
deltoid (shoulder)
muscle.
Muscles engaged while performing cable face pull: trapezius (lower and
middle portion), posterior (rear)
deltoid, rotator cuff, biceps, forearms
An excellent option for training the posterior and
middle bundle of
deltoid 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.
Andersen et al. (2010) compared the free weight lateral raise to the band resisted lateral raise and found the
middle deltoid displayed similar average
muscle activity between the two variations.
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.
Keuchle et al. (1997) show that the anterior displays an average
muscle moment arm of 21.0 mm while the
middle deltoid displays an average
muscle moment arm of 23.5 mm, indicating that both segments function as shoulder flexors.
The
deltoids (anterior,
middle, posterior) have a relatively large physiological cross-sectional area compared to other
muscles in the upper body.
However, in both the shoulder press and the bench press, the
middle deltoid appears to produce significantly less
muscle activity compared with the anterior
deltoid.
The
deltoid muscle group is generally thought to consist of three distinct parts — the anterior,
middle and posterior — which display different roles and
muscle activity depending on the shoulder motion and position.
In contrast, the posterior
deltoid displays an average extensor
muscle moment arm length of -0.17 mm, indicating that it probably functions differently than the anterior and
middle deltoids.
Therefore, single - joint exercises that include abduction of the arm are superior in producing
middle deltoid and anterior
deltoid muscle activity, while exercises that include horizontal abduction produce superior posterior
deltoid muscle activity.
The
deltoid muscle group consists of three main parts: the anterior,
middle and posterior regions, although there may be further intramuscular segments.