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Table 2.

Moments of inertia about the principal axes of inertia

Fore—aft, x, axis (roll)Medio—lateral, y, axis (pitch)Vertical, z, axis (yaw)
RIP apparatus absent (kg m20.4×10-7±0.2×10-7 3.0×10-7±0.9×10-7 3.7×10-7±1.7×10-7 
RIP apparatus present (kg m22.5×10-7±0.7×10-7 3.9×10-7±0.73×10-7 6.0×10-7±1.3×10-7 
Percentage change 740±400 135±33 209±153 
Fore—aft, x, axis (roll)Medio—lateral, y, axis (pitch)Vertical, z, axis (yaw)
RIP apparatus absent (kg m20.4×10-7±0.2×10-7 3.0×10-7±0.9×10-7 3.7×10-7±1.7×10-7 
RIP apparatus present (kg m22.5×10-7±0.7×10-7 3.9×10-7±0.73×10-7 6.0×10-7±1.3×10-7 
Percentage change 740±400 135±33 209±153 

RIP, rapid impulsive perturbation.

Values are means ± S.D. (N=9).

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