Muscles of Neck and Trunk PNF PDF

## Neck Flexion--Lateral Flexion-Rotation | Movement | Muscles: principal components (Kendall and McCreary 1993)...

## Neck Flexion--Lateral Flexion-Rotation | Movement | Muscles: principal components (Kendall and McCreary 1993) | | --------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Upper cervical flexion | Longus capitis, rectus capitis anterior, suprahyoid muscles (tuck chin), infrahyoid muscles (stabilize hyoid) | | Lower cervical flexion | Longus colli, platysma, scalenus anterior, sternocleidomastoid | | Rotation | Contralateral: Scalenus (all), sternocleidomastoid Ipsilateral: Longus capitis and colli, Rectus capitis anterior | | Lateral flexion | Longus colli, scalenus (all), sternocleidomastoid | ## Neck Extension-Lateral Flexion-Rotation | Movement | Muscles: principal components (Kendall and McCreary 1993) | | --------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Upper cervical extension | Iliocostalis and longissimus capitis, obliquus capitis (superior and inferior), rectus capitis posterior (major and minor), semispinalis and splenius capitis, trapezius | | Lower cervical extension | Iliocostalis cervicis, longissimus and splenius cervicis, multifidi and rotatores, semispina-lis and splenius cervicis, trapezius | | Rotation | Contralateral: Multifidi and rotatores, semispinalis capitis, upper trapezius Ipsilateral: Obliquus capitis inferior, splenius cervicis and capitis | | Lateral flexion | Iliocostalis cervicis, intertransversarii (cervical), longissimus capitis, obliquus capitis superior, splenius cervicis and capitis, trapezius | ## Chopping Actions | Movement | Muscles: principal components (Kendall and McCreary 1993) | | ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------ | | Chopping to the left | Left external oblique, rectus abdominis, right internal oblique | | Lifting to the right | All the neck and back extensor muscles, left multifidi and rotatores | | Bilateral lower extremity flexion to the left | Left internal oblique, rectus abdominis, right external oblique | | Bilateral lower extremity extension to the right | All the back and neck extensor muscles, Right quadratus lumborum, Left multifidi and rotatores |