deltoid

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deltoid

[′del‚tȯid]
(anatomy)
The large triangular shoulder muscle; originates on the pectoral girdle and inserts on the humerus.
(biology)
Triangular in shape.
(mathematics)
The plane curve traced by a point on a circle while the circle rolls along the inside of another circle whose radius is three times as great.
A concave quadrilateral with two pairs of adjacent equal sides. Also known as Steiner's hypocycloid tricuspid.
References in periodicals archive ?
This finding may help clinicians improve posterior shoulder extensibility for patients or sports players with posterior shoulder tightness, who have high stretch sensitivity and low PPT in the infraspinatus and posterior deltoid muscles.
LC can be an alternative method when individuals with posterior shoulder tightness have high stretch sensitivity and low PPT in the infraspinatus and posterior deltoid muscles.
They also help one better understand the muscular demand required to complete SPTs because the anterior fibers of the deltoid muscles were more solicited in the trailing UL than in the leading UL during the SPTs, independent of transfer direction preference.
This will increase mobility in the shoulder joints and upper body as well as toning the deltoid muscles at the back of the shoulders and the triceps under the arms.
2008) also demonstrat the effects of 14 weeks of concurrent lower body endurance and upper body resistance training on vastus lateralis and deltoid muscles of elderly men and they show that satellite cell pool increases similarly in both muscles, mainly in type II muscle fibers.
This altered anatomy is intended to provide a greater lever arm for the deltoid muscle, allowing the patients to regain active shoulder elevation.
13,15,16) Rather, the rig allowed for the testing of specimens where only the deltoid muscle was represented.