Neck muscle vibration can improve sensorimotor function in patients with neck pain

Area of Science:

• Neuroscience
• Biomechanics
• Rehabilitation Science

Background:

• Neck pain is associated with impaired joint position sense and postural control.
• Somatosensory afferent activity and integration are implicated in these deficits.
• Vibration can alter afferent processing, but its effect on neck pain patients is understudied.

Purpose of the Study:

• To investigate the impact of neck muscle vibration on joint position sense and postural control.
• To compare these effects in individuals with neck pain versus healthy controls.

Main Methods:

• A case-control study design was employed.
• Thirteen neck pain patients and 10 healthy controls were recruited.
• Cervical joint position sense and postural stability (static and dynamic) were measured before and after 100 Hz neck muscle vibration.

Main Results:

• Neck muscle vibration improved joint position sense (p<.01) and reduced dynamic postural sway (p<.05) in neck pain patients.
• In contrast, healthy controls experienced reduced joint position sense acuity (p<.05) and a non-significant increase in postural sway.
• These findings indicate differential effects of vibration based on neck pain status.

Conclusions:

• This study is the first to demonstrate enhanced motor performance following neck muscle vibration in individuals with neck pain.
• Neck muscle vibration shows potential as a therapeutic tool to address sensorimotor impairments in the cervical spine.
• Further research is warranted to explore the underlying mechanisms of these observed effects.