Neck–shoulder muscle activity in general and task-specific resting postures of symptomatic computer users with chronic neck pain

2009 ◽  
Vol 14 (3) ◽  
pp. 338-345 ◽  
Author(s):  
Grace Pui Yuk Szeto ◽  
Leon Melville Straker ◽  
Peter Bruce O'Sullivan
Keyword(s):  
Neck Pain ◽  
Muscle Activity ◽  
Chronic Neck Pain ◽  
Computer Users ◽  
Shoulder Muscle ◽  
And Task

scholarly journals Stress Management as an Adjunct to Physical Therapy for Chronic Neck Pain

2012 ◽  
Vol 92 (10) ◽  
pp. 1348-1359 ◽  
Author(s):  
Angela K. Bruflat ◽  
Jaclyn E. Balter ◽  
Denise McGuire ◽  
Nathan B. Fethke ◽  
Katrina S. Maluf
Keyword(s):  
Physical Therapy ◽  
Neck Pain ◽  
Stress Management ◽  
Muscle Activity ◽  
Psychosocial Stress ◽  
Muscle Relaxation ◽  
Trapezius Muscle ◽  
Chronic Neck Pain ◽  
Multidisciplinary Intervention ◽  
Neck Disability

Background and Purpose Chronic neck pain is prevalent in the workplace. Research suggests that psychosocial stress may contribute to the development of neck pain by causing excessive or prolonged muscle activity in some individuals. The purpose of this case report is to describe the rationale, development, and implementation of stress management as an adjunct to standard physical therapist management of chronic neck pain in a female office worker who responded to psychosocial stress with elevated muscle activity prior to treatment. Case Description A 44-year-old female office employee with an 8-year history of chronic neck pain participated in this case report. The patient was selected from a group of research participants who demonstrated elevated electromyographic (EMG) activity of the trapezius muscle in response to simulated occupational stressors. The multidisciplinary intervention consisted of 8 physical therapy sessions, supplemented by 8 stress management sessions that included EMG biofeedback and psychotherapy to facilitate muscle relaxation. Outcomes Neck disability decreased by 50%, trait anxiety decreased by 21%, and the duration of trapezius muscle rest in the workplace increased by 56% immediately after the 8-week intervention. These improvements were maintained 6 months after treatment, and the patient reported a complete absence of neck disability at the 2-year follow-up assessment. Discussion A sustained reduction in neck disability was observed for a patient with chronic neck pain after participating in a multidisciplinary intervention that combined physical therapy and stress management approaches to facilitate muscle relaxation in the workplace. Future clinical trials are needed to assess whether stress management is a useful adjunct therapy for patients with chronic neck pain who show elevated muscle activity in response to psychosocial stress.

scholarly journals Explicit feedback and instruction do not change shoulder muscle activity reduction after shoulder fixation

2020 ◽  
Author(s):  
Rodrigo S. Maeda ◽  
Julia M. Zdybal ◽  
Paul L. Gribble ◽  
J. Andrew Pruszynski
Keyword(s):  
Muscle Activity ◽  
Shoulder Joint ◽  
The Third ◽  
Task Instructions ◽  
Visual Biofeedback ◽  
Shoulder Muscle ◽  
Intersegmental Dynamics ◽  
Elbow Movement ◽  
Human Participants ◽  
And Task

AbstractGenerating pure elbow rotation requires contracting muscles at both the shoulder and elbow joints to counter torques that arise at the shoulder when the forearm rotates (i.e., intersegmental dynamics). Previous work has shown that human participants learn to reduce their shoulder muscle activity if the same elbow movement is performed after the shoulder joint is mechanically locked, which is appropriate because locking the shoulder joint eliminates the torques that arise at the shoulder when the forearm rotates. However, this learning is slow (i.e., it unfolds over hundreds of trials) and incomplete (i.e., shoulder activity is not fully eliminated). Here we investigated whether and how the addition of explicit strategies and biofeedback modulate this type of learning. Three groups of human participants (N = 55) performed voluntary pure elbow rotations using a robotic exoskeleton that permits shoulder and elbow rotation in a horizontal plane. Participants did the task with the shoulder free to move (baseline), then with the shoulder joint locked by the robotic manipulandum (adaptation), and then with the shoulder free to move again (post-adaptation). The first group of participants performed this protocol and received no instructions about what to do after their shoulder was locked. The second group of participants received visual feedback about their shoulder muscle activity after each movement and was instructed to reduce their shoulder activity to zero. The third group of participants also received visual biofeedback, but it was removed part way through the experiment. We found that, although all groups learned, the rate and magnitude of learning was not reliably different across the groups. Taken together, our results suggest that learning new arm dynamics, unlike other motor learning paradigms, unfolds independent of explicit instructions, biofeedback and task instructions.

scholarly journals Effect of One Period of Exercise-Therapy and an Engonomic Intervention on the Rate of Chronic Neck Pain and Disability in Computer Users

2015 ◽  
Vol 21 (3) ◽  
pp. 197-203
Author(s):  
Majid Miri ◽  
Haide Hashemizade ◽  
Ali Mohammadpour ◽  
Hamid Zaheri ◽  
◽  
...  
Keyword(s):  
Neck Pain ◽  
Exercise Therapy ◽  
Chronic Neck Pain ◽  
Computer Users
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