THE CYCLE OF SOMATIC DISFUNCTION. MUSCLE IMBALANCE

REASONS.

Dynamic: 

  Sudden overload ( Lifting); 

  Wrong movement (overcome physiological barrier); 

Static overload(Prolonged position, bad posture) 

     

Kinetic:

Tight Primary Action Muscles & Weakness Secondary Action Muscles -> 

   Changing in joint position; 

   Changing in Secondary Act.Muscles length/load   -> 

             Constant Eccentric Load                            // postural muscles eg supraspinatus  

             Continues Concentric overload /                 // Hamstrings (weak glut.max); 

                                                                                  Rectus femoris (weak psoas;

                                                                                  

             Immobilization (Locking in short range) -> ....   

Overtrain/overload  => (*) tightness Primary Actions Muscles
=>decrease ROM => immobilisation Secondary Action Muscle (eg rotators) => weakness => disability =>(*loop)=> tightness  Primary Actions Muscles

RULE: 

1. Disfunction usualy happens in Secondary Action Muscles OR Tonic-Postural muscles

2. If there is tightness in Primary Action Muscles => Look for disability/disfunction in Secondary Action Muscles

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Primary Actions Muscles  - phasic muscles, strong muscle with big force momentum  have tendency to become  tight from over


Secondary Action Muscles - phasic/tonic muscles assist in general movements eg rotators. Они короче обчыно имеют вращающий момент (крепятся дальше от оси вращения eg hip rotators, rotator cuff)

EXAMPLES: 1) Shoulder.
                                    Primary - pectoralis, Latisimus;
                                    Secondary - rotator cuff
                        2) Hip. Primary- Hamstring Quadriceps TFL Adductors; Gluteus Max; IlioPsoas
                                    Secondary - Glut Med/Min Hip External Internal Rotators;






Overtrain-overload -  перегрузка мышц too much repetitions/load. Вызывает боль, укорочение мышц
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