passages.id: split_6_test_971_passage
passages.type: progene_text
passages.text: The aim of this study was to evaluate the sensitivity of C-SP as an index of motor system involvement , in ten patients affected by ALS , with a mean duration of the disease : 5. 5+/- 3.4 months , by means of an objective computer - aided method to measure C-SP and its relationship to stimulation intensity .