Cervical Spine Mechanism for Reproduction of the Biomechanical Behaviours of the Human Neck during Rotation-Traction Manipulation

Table 1

Averages and variances of biomechanical parameters.

	Obese	Overweight	Normal weight
Max. preloaded force (N)	230.3 ± 48.8	185.2 ± 41.8	153.1 ± 46.2
Jerky force (N)	173.5 ± 51.5	123.2 ± 33.9	117.2 ± 38.6
Max. applied force (N)	362.1 ± 74.4	285.6 ± 56.0	253.8 ± 54.0
Jerky duration (ms)	110 ± 20	110 ± 20	110 ± 20
Acceleration (mm/s^2)	3836.3 ± 1262
Velocity (mm/s)	203.0 ± 50.0