Inspiratory response and side-effects to rapid bilateral magnetic phrenic nerve stimulation using differently shaped coils: implications for stimulation-assisted mechanical ventilation

Table 1 Participant characteristics

	Initial recruitment	Secondary recruitment
Anthropometrics
Sex	9M:5F	0M:3F
Age, years	26 ± 5	28 ± 4
Height, cm	176 ± 9	169 ± 4
Body weight, kg	74 ± 10	58 ± 6
Body fat, kg	18 ± 5	15 ± 3
Body fat, %	26 ± 6	29 ± 3
BMI, kg/m²	24 ± 2	20 ± 1
Spirometry
FVC, L	5.4 ± 1.2	4.6 ± 0.7
FVC, % predicted	106 ± 10	110 ± 11
FEV₁, L	4.4 ± 0.8	3.7 ± 0.6
FEV₁, % predicted	102 ± 9	106 ± 12
FEV₁/FVC, %	81 ± 7	81 ± 5
Maximal voluntary ventilation, L/min	164 ± 42	129 ± 22
Maximal voluntary ventilation, % predicted	106 ± 16	99 ± 3
Maximal volitional pressure generation
Maximal inspiratory mouth pressure, cmH₂O	117 ± 17	104 ± 19
Maximal inspiratory mouth pressure, % predicted	121 ± 21	125 ± 37
Maximal expiratory mouth pressure, cmH₂O	155 ± 36	148 ± 53
Maximal expiratory mouth pressure, % predicted	121 ± 30	150 ± 53

BMI: body mass index; FVC: forced vital capacity; FEV₁: forced expiratory volume in one second. Values are mean ± SD. Predicted FVC and FEV₁ values were obtained from Quanjer et al. [18] and predicted maximal inspiratory and expiratory values were obtained from Wilson et al. [19]. Predicted maximal voluntary ventilation was obtained by multiplying FEV₁ by 35. Secondary recruitment represents the participants who were recruited for the optional third visit only (rapid magnetic stimulation on the chest)

ISSN: 1465-993X