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Table 2 Muscle ultrasound in a large subset of bilateral skeletal muscles

From: Natural history, outcome measures and trial readiness in LAMA2-related muscular dystrophy and SELENON-related myopathy in children and adults: protocol of the LAST STRONG study

Muscle

Point of measurement

M. Temporalis

Parallel to the oculus (above os zygomaticum)

M. Sternocleidomastoid

1/2 line lobulus auriculae to clavicula

M. Biceps brachii

2/3 line acromion – elbow fossa

M. Flexor carpi radialis

1/3 line elbow fossa – caput radii

M. Erector spinae thoracalis

At the level of seventh thoracic vertebrae

M. Erector spinae lumbalis

At the level of third lumbar vertebrae

M. Rectus abdominis

2 cm above umbilicus

M. Biceps femoris

1/2 line gluteal sulcus – popliteal fossa

M. Rectus femoris

1/2 line spina iliaca – upper edge of patella

M. Vastus lateralis

2/3 lateral line spina iliaca – upper edge of patella

M. Gastrocnemius - caput mediale

1/3 line popliteal fossa – medial malleolus

M. Soleus

The place where gastrocnemius disappears and the fibula appears

M. Tibialis anterior

1/3 line lower edge patella – lateral malleolus