| | CHEST: Assessment of airway caliber and bronchodilator responsiveness in subjects with spinal cord injury (Site not responding. Last check: 2007-10-14) |
 | | Conclusions: Subjects with tetraplegia, as opposed to those with low paraplegia, have reduced baseline airway caliber due to heightened vagomotor airway tone, which we hypothesize is the result of the interruption of sympathetic innervation to the lungs, and/or from low circulating epinephrine levels. |
 | | Among subjects with tetraplegia, the degree to which airway caliber is reflected by spirometric indexes is lessened if during repeated spirometric maneuvers decreased force generation results in suboptimal expiratory efforts in which flow limitation is not reached. |
 | | Because subjects with tetraplegia were unable to manually support their cheeks, all study participants were instructed to minimize the use of their cheek muscles and to maintain an open airway while performing rapid and shallow panting maneuvers from functional residual capacity (FRC) at a frequency of approximately two cycles per second. |
| www.findarticles.com /p/articles/mi_m0984/is_1_127/ai_n9474616 (1222 words) |