Sentences with phrase «external oblique»

The three muscles of the lateral abdominal wall — the internal oblique, the external oblique, and the transverse abdominis — have fibrous connections that create the rectus sheath, which crosses over and under the rectus abdominis.

The abdominal muscles include the rectus, transverse, external oblique, and internal oblique.

Assessing the kettlebell swing, Andersen et al. (2015) measured the muscle activity of the external oblique in the kettlebell swing with 1 and 2 hands.

However, only the plank with arm reach and side plank with arm reach can outperform traditional curl ups for rectus abdominis and external oblique muscle activity.

However, Aspe et al. (2014) found that external oblique muscle activity did not differ between relative loads of 60, 75 and 90 % of 3RM.

Increasing external moment arm lengths during isometric core exercise, either by using extended legs during hanging leg raises, or by performing long lever planks, leads to greater rectus abdominis and external oblique muscle activity.

It appears that the external oblique is the heaviest of the abdominals.

Therefore, the transverse abdominis appears to be more heavily pennated in the lower abdomen, the internal oblique displays the opposite trend, and the external oblique is similarly pennated in both regions.

Using internal cues to focus on the muscle does not improve rectus abdominis muscle activity but leads to preferentially more external oblique muscle activity.

The rectus abdominis and external oblique display moderate levels of muscle activity during squat and deadlift variations, but there is no difference in muscle activity of the abdominals between the squat and deadlift.

Overall, using an unstable surface may increase external oblique muscle activity.

Assessing dynamic stabilisation exercises, Souza et al. (2001) measured rectus abdominis muscle activity and external oblique muscle activity during the supine dead - bug and two point kneeling bird - dog exercise.

Assessing the effect of external load, Vinstrup et al. (2015) measured muscle activity of the rectus abdominis and external oblique during a seated machine torso twist and a standing torso twist with an elastic band held out in front of the body and attached at 3 or 9 o'clock to the subject.

The transverse abdominis, internal and external oblique display the greatest potential to function as spinal stabilisers.

Comparing the squat and deadlift, Hamlyn et al. (2007) examined the external oblique muscle activity and the lower region of the deep abdominal (superior to inguinal ligament, medial to anterior superior iliac crest) muscle activity during the barbell back squat and conventional deadlift with 80 % of 1RM.

Assessing exercise technique in the deadlift, Escamilla et al. (2002) examined rectus abdominis and external oblique muscle activity.

Sullivan et al. (2015) also studied the effect of internal cues by having subjects focus on slowly and actively shortening and contracting the rectus abdominis and external oblique during a bent leg sit up.

Overall, the external oblique muscle activity seems to increase with increasing relative load.

Similarly comparing 50 % and 75 % of 1RM, Willardson et al. (2009) also found that external oblique muscle activity was higher with greater relative loads.

They reported higher external oblique muscle activity with the BOSU ball at 50 % of 1RM compared to the stable condition, but no difference between the BOSU ball and 75 % of 1RM conditions.

They reported that external oblique muscle activity was superior when performing the standing barbell overhead press compared to the back squat, deadlift and curl.

They reported that the external oblique displayed greater muscle activity when performing the deadlift without a belt in both the conventional or sumo deadlift, which is the opposite of the rectus abdominis.

In the lowering phase, external oblique muscle activity was greatest at knee flexion angles of 60 — 31.

Brown et al. (2011) reported muscle weights of the rectus abdominis, external oblique, internal oblique, and transverse abdominis of 81g, 105g, 75g, and 51g, respectively.

The external oblique extends from the front of the lateral pelvis to the side of the lower ribs and thus is highly active during spine rotation (McGill et al. 1991) and lateral flexion (Konrad et al. 2001).

The rectus abdominis is the primary spinal flexor owing to its attachments that extend across the middle of the abdomen, while the external oblique is the primary spinal rotator and lateral flexor.

The external oblique has its primary insertions on the linea alba and the anterior half of the iliac crest.

McGill et al. (2014) measured external oblique muscle activity during the hanging leg raise with and without extended legs.

Rectus abdominis muscle activity is similar in sit ups and curl ups but external oblique muscle activity is higher in sit ups than curls ups.

There was a trend towards greater external oblique muscle activity in the long lever plank with posterior pelvic tilt compared to the long lever plank without posterior pelvic tilt (148 vs. 111 % of MVC).

Adding external load and using an unstable surface during curl ups leads to greater rectus abdominis and external oblique muscle activity.

The abdominals vary in size and weight, with the external oblique being the heaviest and the transverse abdominis being the lightest, at around half its weight.

During isometric core exercise, rectus abdominis and external oblique muscle activity are higher when using posterior pelvic tilt than when using abdominal hollowing, and when using unstable surfaces than when using stable ones.

The plank with arm reach, side plank with arm reach, and the birddog with elastic resistance produced greater external oblique muscle activity compared to the curl up with bent legs.

External oblique muscle activity is highest in the curl up variation with trunk rotation.

Rectus abdominis and external oblique muscle activity levels are both greater in the standing overhead press, plank, and Swiss ball jack knife compared to the squat and deadlift.

Rectus abdominis and external oblique muscle activity were higher in the overhead squat compared to the back squat.

They reported higher external oblique muscle activity in the stable floor condition compared to the other conditions.

Comparing between the phases of the deadlift, Escamilla et al. (2002) found that muscle activity of the abdominals was greater in the lifting phase compared to the lowering phase for the rectus abdominis (65 — 80 % of MVIC) and for the external oblique (66 — 75 % of MVIC), regardless of deadlift variation.

They reported that external oblique muscle activity was higher with greater relative loads.

Youdas et al. (2010) found no difference in external oblique muscle activity between the chin up, pull up and rotating handle pull up and external oblique muscle activity was relatively in all exercises.

Additionally, the abdominal muscles appear to vary in their morphology across the abdomen Rankin et al. (2006) reported that the rectus abdominis and transverse abdominis were larger when measured just below the rib cage, while the internal and external oblique were larger when measured at the mid point between the superior iliac crest and rig cage.

Compared to the normal bent knee sit up, the internal cues resulted in higher rectus abdominis but the external oblique displayed lower muscle activity, possibly due to increased attention to trunk flexion.

Adding trunk rotation therefore appears to increase external oblique muscle activity during the curl up.

Assessing the effect of altering attentional focus, Karst et al. (2004) explored muscle activity of the abdominals when performing the curl up with and without internal cues to activate either the rectus abdominis or the external oblique.

Haggmark et al. (1979) found that the proportion of type I muscle fiber across the rectus abdominis, internal and external oblique was 55 — 58 %, although there was considerable inter-individual variability.

Konrad et al. (2001) compared a number of gymnastic exercises and found that the horizontal straight leg anchored side bend displayed the highest external oblique muscle activity, followed by the reverse curl up Escamilla et al. (2006) compared the power wheel roll out (power wheel in hands), jack knife and knee - tuck (power wheel attached to feet), the ab sling bent - leg hanging leg raise, the flat and decline reverse curl up, the anchored bent leg sit up, and bent leg curl up.

The rectus abdominis and external oblique display moderate levels of muscle activity in the squat and deadlift but there is no difference in the levels of muscle activity between these lifts.

There are four main abdominal muscles to consider: the rectus abdominis, the external oblique, the internal oblique, and the transverse abdominis.

External oblique muscle activity is therefore similarly active across the whole of the lifting phase and highest in the middle part of the lowering phase.