Under the Musculus gluteus maximus are still the middle and the smallest With the four-legged mammals it is not the largest croup muscles, here it due to the likewise superficial situation as Musculus gluteus superficialis ("„superficial croup muscle "“) is designated. With the Paarhufern this muscle merged with the Musculus biceps femoris into the Musculus gluteobiceps.

Function

The Musculus gluteus maximus stretches the hip joint (Extension) and stretches the trunk from the bend position (e.g. Rise from sitting). It is the strongest Strecker in the hip joint and makes possible for humans the upright course. With the four-legged mammals the muscle is substantially weaker therefore, because of its superficial situation marks one it here than "„Musculus gluteus superficialis "“(superficial croup muscle). All fibers of this muscle lie behind the transversals body axle: If the M. gluteus maximus pulls together, it comes thus to the aspect ratio. Thus it prevents also a tilting of the basin forward and helps e.g. with the stair rise. By its different beginnings the M. gluteus maximus both and Adduktor can (to the Anspreizung of the leg) and as Abduktor (to spreading) to work: the convenient (kraniale) portion M. gluteus maximus supports the Abduktion and stretches the Fascia lata (a Faszie at the outside thigh). the convenient (kaudale) part, which sets to the Tuberositas glutea the thigh bone, supports against it the Adduktion of the thigh. Further the muscle is an important Aussenrotator of the leg.

Paralysis

With a reciprocal paralysis important functions are not like the stair rise any longer possible, however calm going and standing. Since "„the putting up "“function (aspect ratio in the hip joint) is omitted, the body emphasis must remain thereby however behind the transverse axle, otherwise the body tilts in front.

With paralysis of the middle (Musculus gluteus medius), which under the Musculus gluteus maximus is, comes it to the Trendelenburg indication: If a leg is bent with standing, the basin tilts on the side of the bent leg. In order to prevent a tilting to this side, the torso is bent as counterweight to the other side (lateral inflection). From this "„a Watschelgang develops "“.

Training

By purposeful and implemented "„typical "“movements can the muscle repeats be trained, for example by distances of the leg to the rear and by movement upward and down in the In the force three-fight knee bends and cross lifting rank to effective exercises among the stabilization of the Musculus gluteus maximus. In force training the leg press stresses also the Musculus gluteus maximus.

In standing the Gluteus lies maximus over the seat leg peak (Tuber ischiadicum). It is not squeezed however when sitting, because the Unterrand of the muscle slides thereby to the side.

See also

• List of important skeleton muscles

Articles in category "Musculus gluteus maximus"

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