Nervous and mental diseases . es and of the contractures that some-times appear in them. It, therefore, varies withthe location of the disease. Owing to the shorten-ing of the calf muscles, little difficulty is found inmaintaining the ankle-joint at a proper angle unlessan equine position of the foot has developed, caus-ing the patients to stand upon their toes. Stand-ing then becomes extremely difficult. The positionat the knee and hip is often entirely dependentupon the ligamentous support of these allows the pelvis to tip forward upon thehead of the femurs and necessitates a str
Nervous and mental diseases . es and of the contractures that some-times appear in them. It, therefore, varies withthe location of the disease. Owing to the shorten-ing of the calf muscles, little difficulty is found inmaintaining the ankle-joint at a proper angle unlessan equine position of the foot has developed, caus-ing the patients to stand upon their toes. Stand-ing then becomes extremely difficult. The positionat the knee and hip is often entirely dependentupon the ligamentous support of these allows the pelvis to tip forward upon thehead of the femurs and necessitates a stronganterior spinal bend to carry the head andshoulders back into the line of gravity for themaintenance of the equilibrium. The prominence of the abdomen isthus produced and is accentuated in turn by the weakness of the abdomi-nal muscles. In some cases the head is tilted backward, but when thespinal curve is pronounced the chin may rest on the sternum. Ordi-narily the feet are kept wide apart to increase the base of Fig. 164.—Showing thedeltoid in advanced myo-pathy.
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