Effect of Proprioceptive Exercises along with Ergonomic Intervention on Middle Deltoid and Serratus Anterior Fatigue in Dentists with Non-Specific Chronic Neck Pain

  • ANAHITA BOLANDIAN Corrective Exercises and Sport Injuries, Iran University of Medical Sciences and Health Services (IUMS), Tehran, Iran
  • IRAJ ALIMOHAMMADI Occupational Health Engineering Department, School of Public Health, Occupational Health Research Center, Iran University of Medical Sciences, Tehran, Iran
  • BIJAN FOROUGH Professor of Physical Medicine and Rehabilitation, Neuromusculoskeletal Research Center, Iran University of Medical Sciences, Tehran, Iran
Keywords: Nonspecific Neck Pain, Muscle Fatigue, Middle Deltoid Muscle, Serratus Anterior Muscle, Proprioceptive Exercises


There are several risk factors in dentistry that among them repetitive movements, being in a position for a long time due to muscle imbalances, and work-related musculoskeletal disorders which can cause problems such as limited mobility, fatigue, job loss or even changing jobs. Muscle imbalance between the stabilizers and mobilizers of the neck and shoulders in dentists leads to increased work-related disorders, superficial muscle fatigue, and deep muscle atrophy, which in turn, leads to many health problems such as neck pain and disability. To prevent such disorders, a high endurance of the cervical stabilizer muscles is essential for repetitive movements in the distal and shoulder region. In this study, the exercise program, including postural exercises, simultaneous training of shoulder-neck, scapular movements, and co-contraction were designed for 48 dentists. The statistical analysis showed that there was a significant decrease in the median frequency slope of the middle deltoid muscle (p = 0.004) and for the group who received the proprioception training along with posture correction exercises and exercise therapy (p = 0.004). Neck pain increased in the control group who received no exercises, after six weeks (p = 0.165). Six weeks of corrective exercises with ergonomic intervention balance muscles activity and can be used to decrease musculoskeletal disorders and muscle fatigue in person with Non-Specific Chronic Neck Pain.