Effectiveness of a specific manual approach to the suboccipital region in patients with chronic mechanical neck pain and rotation deficit in the upper cervical spine: study protocol for a randomized controlled trial

Table 2 Outcome variables

Outcome variables	Evaluation period			Measuring instrument
Outcome variables	Baseline	Post-treatment	Three months post-treatment	Measuring instrument
Intensity of neck pain (main outome)	X	X	X	VAS
Neck disability	X	X	X	NDI
Overall cervical range of motion	X	X	X	CROM
Upper cervical range of motion	X	X	X	CROM
Headache intensity	X	X	X	HIT-6
Rating of clinical change		X	X	GROC scale

ISSN: 1471-2474