
Ways to remember the causes for pain in different muscles:
Gluteus Minimus – S.N.A.P.
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S = sacroiliac joint dysfunction 
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N = nerve root irritation 
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A = acute stress 
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P = prolonged inmobility 
Iliopsoas – P.R.O.S.
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P = prolonged sitting 
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R = rectus femoris tightness 
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O = overload strain 
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S = sleeping in fetal position 
Infraspinatus – A.R.T.
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A = acute stress or multiple overload stress 
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R = reaching arm behind and away 
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T = twisting arm during a fall 
Levator Scapula – H.O.T. W.A.S.H.
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H = holding the phone between ear and shoulder 
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O = occupational stresses 
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T = typing with head and neck turned 
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W = walking with cane 
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A = acute stress 
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S = sleeping with neck in tilted position 
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H = hypertonic muscles 
Multifidi and rotatores – S.R. (like “MR” in Spanish) Quick Pick
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S = sudden overload or traumatic event 
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R = repeated muscular contraction 
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Q = quick bending and twisting 
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P = prolonged immobility (such as sitting on a plane) 
Quadratus Lumborum - S.A.M.
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S = sudden trauma 
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A = awkward movements 
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M = motor vehicle accident 
Rhomboid major and minor - R.A.P.
- 
R = rounded shoulders 
- 
A = acute stress 
- 
P = prolonged leaning forward 
Sartorius - SO
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S = secondary TPs of thigh muscle 
- 
O = overload strain in a twisting fall 
Scalenes - W.A.C.K.
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W = whiplash injury 
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A = accidental trauma 
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C = carrying awkward, large objects 
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K = kink in the neck from sleeping in an awkward position 
Sternocleidomastoid - P.E.P.S.I.
- 
P = poor posture 
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E = excessive forward head posture 
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P = protracted neck extension 
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S = sitting with head turned to the side for a long period of time 
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I = injury due to whiplash 
Suboccipitals - Fast Sleeper
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F = forward head posture 
- 
S = sustained flexion of the neck 
Subscapularis – D.R. (Dominican Republic)
- 
D = dislocation of glenohumeral joint 
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R = repeated overhead lifting 
Supraspinatus – Charismatic Weight Lifter
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C = carrying heavy objects that pull inferiorly, such as a suitcase 
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W = walking a big dog that pulls hard on the leash 
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L = lifting heavy object above shoulder height 
Tensor Fasciae Latae - S.L.O.W.
- 
S = shortened position for long periods without mobilization 
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L = Landing on feet from high jump 
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O = overload strain 
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W = walking or running on sloped surface 
Trapezius – S.A.W.
- 
S = sudden trauma, such as falling 
- 
A = arm rests in high position 
- 
W = whiplash injury 


