Overview
This is a balancing pose which strengthens the core muscles (abdominal and back), arms and leg muscles.
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Joint Actions
Muscular Actions
Camel
Ustrasana
Overview
This is a deep back bending posture which involves extension of various structures including the shoulders, back and hips, therefore strengthening these posterior muscles. Conversely, the anterior muscles such as the quadriceps, abdominal and pectoral muscles are lengthened. It is important for the hips to stay directly above the knees to maintain control of the body and to emphasise extension in the hips rather than in the lumbar spine.


Joint actions
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Muscular actions
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Nerves
Nerves which may undergo neural tension:
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Radial nerve
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Femoral nerve
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Notes
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Although the shape of this posture may look similar to bow pose, it requires a different strength in a different set of muscle groups.
While the posterior back muscles may initiate the spinal extension, gravity quickly takes over past a certain point. Therefore, the eccentric contraction of the anterior muscles e.g. hip flexors, abdominal muscles, are responsible for the rest of a controlled spinal extension. Once the hands grasp the heels, the spinal extensors and gluteal muscles contract concentrically to emphasise spinal extension in the thoracic spine and hips, and deemphasise extension in the lumbar region, to minimise pressure in the lumbar spine.
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Shoulder mobility is another important aspect of this posture as the arms are in deep extension. Care should be taken to not strain or sprain any soft tissue in the shoulders. To safely transition into and out of this posture, use both hands to support the lumbar spine as the spine extends.
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Precautions & Contraindications
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Avoid or modify if any of the following are present:
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High or low blood pressure (to be performed only under guidance of a yoga teacher or therapist)
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Migraine
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Neck injury e.g. spondylitis
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Weak or injured back e.g. disc herniation
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Osteopenia
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Osteoporosis
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Shoulder injury e.g. anterior dislocation