کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9152378 1167447 2005 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Motor control of the costal and crural diaphragm - insights from transcranial magnetic stimulation in man
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی فیزیولوژی
پیش نمایش صفحه اول مقاله
Motor control of the costal and crural diaphragm - insights from transcranial magnetic stimulation in man
چکیده انگلیسی
The costal and crural parts of the diaphragm differ in their embryological development and physiological function. It is not known if this is reflected in differences in their motor cortical representation. We compared the response of the costal and crural diaphragms using varying intensities of transcranial magnetic stimulation of the motor cortex at rest and during submaximal and maximal inspiratory efforts. The costal and crural motor evoked potential recruitment curves during submaximal inspiratory efforts were similar. The response to stimulation before, during and at 10 and 30 min after 44 consecutive maximal inspiratory efforts was also the same. Using paired stimulations to investigate intra-cortical facilitatory and inhibitory circuits we found no difference between the costal and crural response with varying interstimulus intervals, or when conditioning and test stimulus intensity were varied. We conclude that supraspinal control of the costal and crural diaphragm is identical during inspiratory tasks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Respiratory Physiology & Neurobiology - Volume 146, Issue 1, March 2005, Pages 5-19
نویسندگان
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