Differential effects of low-intensity motor cortical stimulation on the inspiratory activity in scalene muscles during voluntary and involuntary breathing
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Differential effects of low-intensity motor cortical stimulation on the inspiratory activity in scalene muscles during voluntary and involuntary breathing. / Petersen, Nicolas Caesar; Taylor, Janet L; Murray, Nicholas P S; Gandevia, Simon C; Butler, Jane E.
In: Respiratory Physiology & Neurobiology, Vol. 175, No. 2, 2011, p. 265-271.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - Differential effects of low-intensity motor cortical stimulation on the inspiratory activity in scalene muscles during voluntary and involuntary breathing
AU - Petersen, Nicolas Caesar
AU - Taylor, Janet L
AU - Murray, Nicholas P S
AU - Gandevia, Simon C
AU - Butler, Jane E
N1 - CURIS 2011 5200 030
PY - 2011
Y1 - 2011
N2 - To assess the cortical contribution to breathing, low-intensity transcranial magnetic stimulation (TMS) was delivered over the motor cortex in 10 subjects during: (i) voluntary static inspiratory efforts, (ii) hypocapnic voluntary ventilation (end-tidal CO(2), 2.7±0.4% mean±SD), and (iii) hypercapnic involuntary ventilation (end-tidal CO(2), 6.0±0.7%). Electromyographic activity (EMG) was recorded from the scalene muscles (obligatory inspiratory muscles) and was significantly suppressed by TMS at short latency (17.2±1.7ms). The scalene EMG was reduced to 76±8% and 76±7% in voluntary breathing and the static inspiratory effort, respectively, but only to 91±10% during the involuntary ventilation, significantly less than during the two voluntary tasks (p
AB - To assess the cortical contribution to breathing, low-intensity transcranial magnetic stimulation (TMS) was delivered over the motor cortex in 10 subjects during: (i) voluntary static inspiratory efforts, (ii) hypocapnic voluntary ventilation (end-tidal CO(2), 2.7±0.4% mean±SD), and (iii) hypercapnic involuntary ventilation (end-tidal CO(2), 6.0±0.7%). Electromyographic activity (EMG) was recorded from the scalene muscles (obligatory inspiratory muscles) and was significantly suppressed by TMS at short latency (17.2±1.7ms). The scalene EMG was reduced to 76±8% and 76±7% in voluntary breathing and the static inspiratory effort, respectively, but only to 91±10% during the involuntary ventilation, significantly less than during the two voluntary tasks (p
U2 - 10.1016/j.resp.2010.11.014
DO - 10.1016/j.resp.2010.11.014
M3 - Journal article
C2 - 21138775
VL - 175
SP - 265
EP - 271
JO - Respiratory Physiology & Neurobiology
JF - Respiratory Physiology & Neurobiology
SN - 1569-9048
IS - 2
ER -
ID: 32928501