DEEP NECK FLEXOR ENDURANCE TEST (Chronic) neck pain may lead to changes in muscle properties and altered control strategies such as the reduction of the activation of deep cervical muscles (e.g. longus colli, capitis longus and deep neck extensors) and the overactivity of superficial muscle activity (sternocleidomastoideus and anterior scalenes). (Falla 2007) These changes may lead to altered mechanical stress, repeated micro-trauma which can perpetuate neck pain. The neck flexor endurance test,