Table 1 Criteria for patient inclusion and exclusion

Inclusion

1. Age 30–55 years

2. Neck pain prolonged more than 12 weeks¹

Exclusion

1. Neck trauma

2. Received manual treatment within one week prior to the investigation

3. Chronic low back pain (> 3 months)

4. Arthrodesis in foot or ankle

5. Evidence of impaired function/pain in foot or ankle

6. Evidence of impaired function/pain in knee

7. Evidence of impaired function/pain in hip

8. Diastolic pressure > 110 mm Hg

9. Pregnancy

10. Drug abuse

11. Aid for walking or standing

12. Known disease that affects nervous system (e.g., multiple sclerosis, stroke, Parkinson disease)

13. Known disease that affects vestibular apparatus (e.g., Meniére disease, benign paroxysmal positional vertigo)