Association between walking ability and trunk and lower-limb muscle atrophy in institutionalized elderly women: a longitudinal pilot study

Table 2 Positions and sites of measurement of lower-limb muscles

Muscles	Positions	Measurement sites
Gluteus maximus	Prone	30 % proximal between the posterior superior iliac spine and the greater trochanter
Gluteus medius	Prone	Midway between the proximal end of the iliac crest and the greater trochanter
Gluteus minimus	Prone	Midway between the proximal end of the iliac crest and the greater trochanter
Rectus femoris	Supine	Midway between the anterior superior iliac spine and the proximal end of the patella
Vastus lateralis	Supine	3 cm lateral of 60 % distal between the anterior superior iliac spine and the proximal end of the patella
Vastus intermedius	Supine	Midway between the anterior superior iliac spine and the proximal end of the patella
Biceps femoris	Prone	Midway between the ischial tuberosity and the lateral condyle of the tibia
Gastrocnemius	Prone	Medial head of gastrocnemius at 30 % proximal between the lateral malleolus of the fibula and the lateral condyle of the tibia
Soleus	Prone	30 % proximal between the lateral malleolus of the fibula and the lateral condyle of the tibia
Tibialis anterior	Supine	30 % proximal between the lateral malleolus of the fibula and the lateral condyle of the tibia

ISSN: 1880-6805