WebJun 11, 2024 · The latissimus dorsi plays less important roles in movements of the trunk; these are more the result of the erector spinae and abdominal muscles. While it is a prime mover when keeping the trunk upright (extension) and an antagonist when flexing the trunk forward, its role in trunk rotation and lateral flexion to the side is as synergist. WebFeb 1, 2010 · The functional potential of the entire external rotator muscle group is most fully recognized while performing pelvic and trunk rotational activities while bearing weight over 1 limb. With the right femur held relatively fixed, contraction of the external rotators would rotate the pelvis and the attached trunk to the left.
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WebJul 13, 2024 · In addition, each stroke requires trunk rotation, more so for ground strokes, serves and overheads than for volleys. The forehand, serve and overhead strokes differ from one- and two-handed backhand strokes in that the upper body muscles are activated in … Webextend and laterally bend trunk and neck, rotate to opposite side: dorsal primary rami of spinal nerves C1-L5: supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa. semispinalis, multifidus and rotatores make up the transversospinal muscle group: obliquus capitis inferior: spinous process of the axis phone camcorder case
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WebApr 23, 2024 · Trunk rotation is a movement that involves the thoracic and lumbar vertebrae and surrounding muscles including: External oblique, side abs that help rotate the trunk. … WebJul 22, 2024 · Trunk rotation is an exercise used to improve core strength stability flexibility and greater mobility of the spine. The exercise can be done in a variety of ways allowing you to progress challenge yourself and perform what works best for you. The trunk muscles play a vital part in any motion the body performs. WebAug 30, 2024 · Left rotation. 5 degrees. 30 degrees. 35 degrees. Nonaxial Motions of the Lumbar Spine. The lumbar spine can also move nonaxially. Nonaxial joint motion is known as translation, or glide. The lumbar spine … how do you know when you\\u0027ve hit rock bottom