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Table 5 Point prevalence (Expressed as percentage) of active MTrPs in subjects with shoulder or neck disorders

From: The prevalence of myofascial trigger points in neck and shoulder-related disorders: a systematic review of the literature

  Alonso-Blanco et al., 2011 Bron et al., 2011 Fernandez-Perez et al., 2012 Fernández-De-Las-Peñas, 2012 Hidalgo-Lozano et al., 2010 Sari, 2012 Tali et al., 2014 Hidalgo-Lozano et al., 2010
Sample Adults (N = 20) Children (N = 20)    White collar
(N = 19)
Blue collar (N = 16)     
Information regarding right or left side    Do not specify left and right     Do not specify left and right Do not specify left and right   Do not specify left and right
Muscles
 Left Temporalis 55 70   20 5.3 6.3     
 Right Temporalis 65 75   10 5.3 6.3     
 Right SCM 30 25   5 21.1 6.3    5  
 Left SCM 40 10   30 21.1 18.8    10  
 Left Upper Trapezius 35 20   30 63.2 56.3   13.5 25  
 Right Upper Trapezius 80 15   35 63.2 68.8    45  
 Suboccipital muscles 100 (bilateral) 80 (bilateral)    OCI- left = 31.6. right = 31.6
SC- left = 15.8. right = 21.1
OCI- left = 12.5. right = 25
SC- left = 31.3. right = 37.5
    
 Middle Trapezius   43.1       
 Lower Trapezius   37.5       
 Left Infraspinatus   77.8   31.6 37.5 41.7    41.7
 Right Infraspinatus    21.1 43.8    
 Supraspinatus   34.7    66.7    66.7
 Subscapularis   40.3    41.7    41.7
 Teres minor   47.2       
 Teres major   36.1       
 Left Deltoid   Posterior- 44.4
Middle- 50
Anterior- 47.2
  5.3 18.8     
 Right Deltoid    10.5 12.5     
 Left Pectoralis major   26.4   5.3 18.8 16.7    16.7
 Right Pectoralis major    18.8 18.8    
 Pectoralis minor   30.6       
 Biceps Brachii   20.8    16.7    16.7
 Triceps Brachii   19.4       
 Left Scalene   16.7 20 21.1 12.5     
 Right Scalene   30 15.8 2.3     
 Subclavius   25       
 Left Masseter    10 15.8 0     
 Right Masseter    0 5.3 0     
 Left Levator scapulae    55 31.6 25 41.7 16.3   41.7
 Right Levator scapulae    65 36.8 12.5    
 Splenius capitis        14.7   
 Rhomboid minor        14.3   
 Rhomboid major        10.2   
 Multifidus        8.6   
  1. Abbreviations: CTTH – Chronic tension type headache SP – Shoulder pain, WAD – Whiplash associated disorder, NPRS – Numerical pain rating scale, OCI – Oblique capitis inferior, SC – Splenius capitis, SCM -Sternocleidomastoid