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Table 1 Initial thrust (impulse thrust 1) mean segmental (L1, L2) and intersegmental (L1–L2) acceleration responses (m/sec2). Standard deviations are shown in parentheses.

From: Increased multiaxial lumbar motion responses during multiple-impulse mechanical force manually assisted spinal manipulation

Impulse Setting

Segment

ML (S.D.)

PA (S.D.)

AX (S.D.)

Low

L1

10.0 (4.0)

36.1 (12.0)

44.6 (11.0)

 

L2

8.8 (4.5)

30.7 (10.7)

47.2 (14.8)

 

L1–L2

10.1 (3.2)

24.5 (9.3)

39.7 (19.6)

Medium

L1

14.3 (7.1)

71.4 (30.4)

86.7 (31.9)

 

L2

14.2 (7.4)

66.2 (21.7)

92.8 (32.9)

 

L1–L2

15.3 (6.6)

49.9 (19.5)

81.0 (35.9)

High

L1

27.5 (14.3)

134.4 (46.3)

130.6 (62.8)

 

L2

26.1 (14.2)

116.4 (36.1)

158.3 (41.2)

 

L1–L2

29.1 (13.1)

107.0 (61.8)

136.8 (64.8)