Table 1.

Summary aerodynamic data for n = 10 larynges.

Parameter	Configuration
	No VT	VT	P-value
PTP (cm H2O)	8.62 ± 2.71	7.00 ± 1.70	0.009
PTF (L/min)	7.28 ± 3.90	4.32 ± 4.01	0.021
PTW (cm H2O * L/min)	67.36 ± 47.62	29.57 ± 25.32	0.002
	PTP +25% no VT	PTP +25% VT
Airflow (L/min)	7.86 ± 3.91	6.02 ± 4.75	0.196

VT = vocal tract; PTP = phonation threshold pressure; PTF = phonation threshold flow; PTW = phonation threshold power.