Table 1:

Representative masses of the adult and youth surrogates. The adult body mass is based off the 50^th percentile Hybrid III dummy and the youth body mass is the equivalent of an 11 or 12 year old male. Each body mass is scaled to give a sliding mass estimate of the effective upper torso mass. The head circumference, head mass, and neck size are based off the specifications for the corresponding components of each surrogate.

	Adult Surrogate	Youth Surrogate
Simulated Body Mass (kg)	77.7	38.1
Head Circumference (cm)	57.6	53.4
Head Mass (kg)	4.9	4.12
Neck Mass (kg)	1.54	0.91
Sliding Mass (kg)	16	8