Extensor power of different parts of the erector spinae musculature in man.
D000367:Age Factors; D000368:Aged; D001696:Biomechanical Phenomena; D002102:Cadaver; D002648:Child; D005260:Female; D006801:Humans; D007403:Intervertebral Disc / Q000033:anatomy & histology; D008159:Lumbar Vertebrae / Q000033:anatomy & histology; D008297:Male; D009132:Muscles / Q000033:anatomy & histology*; D012737:Sex Factors; D013131:Spine / Q000033:anatomy & histology*