Comparison of pressure pain threshold and hand grip strength in individuals with and without chronic neck pain

Aims: The aim of this study was to evaluate the pressure pain threshold (PPT), hand grip strength, neck disability, functional status, and quality of life in symptomatic and asymptomatic individuals with and without chronic neck pain, and to determine the differences in these parameters between the groups. Methods: A total of 47 individuals aged 21 to 49 years, including 24 with at least 3 months of neck pain and 23 without neck pain, were included in the study. PPT of the upper trapezius, sternocleidomastoid (SCM), levator scapula, and suboccipital muscles was assessed using a dolorimeter. Hand grip strength was measured with a Jamar® Hydraulic Hand Dynamometer. Neck disability were evaluated using the Bournemouth Questionnaire (BQ). The disability level associated with upper extremity functional status was assessed with the Disabilities of the Arm, Shoulder, and Hand Questionnaire (DASH). Quality of life was evaluated with the Nottingham Health Profile (NHP). Results: PPT values, except for SCM, were significantly lower in symptomatic individuals (p< 0.05). Neck disability, upper extremity function-related disability level, and quality of life were significantly worse in symptomatic individuals (p< 0.05). There were no significant differences between the groups in hand grip strength, PPT of the SCM, or NHP emotional reactions and social isolation scores (p> 0.05). Conclusion: It was found that PPT, neck functions, quality of life, and upper extremity function-related disability levels were more affected in symptomatic individuals with chronic neck pain without a specific diagnosis compared to asymptomatic individuals. Although hand grip strength was not affected in symptomatic individuals with chronic neck pain, other functional impairments may still be present.