Neurophysiologic Effects of Cervical Spinal Manipulation in Asymptomatic Individuals

Neurophysiologic Effects of Cervical Spinal Manipulation in Asymptomatic Individuals

This study had the goal of analyse the neurophysiologic effects of both mechanical and manual cervical manipulation, in asymptomatic individuals.

In this study, the investigators compared the effects of manual manipulation and instrument assisted manipulation of C3/C4 on muscle tone, elasticity and stiffness and on pressure pain threshold , and pressure pain perception. The muscles evaluated were upper trapezius and biceps brachialis, bilaterally. The study also had a placebo and a control group. All individuals were asymptomatic.

Inclusion Criteria:

• Healthy subjects.
• Minimum of 18 years old.

Exclusion Criteria:

• Pain in cervical region, shoulders or arms.
• History of trauma or disease in the cervical region or upper limb.
• Use of medication that could affect the outcomes (painkillers, NSAID, or anti depressives) during the last week.