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Table 1 Mean (SE) of normalized RMS values during “Thrust phase” and post-thrust time intervals (“Post-SMT 1 to 4”)

From: Neuromechanical response to spinal manipulation therapy: effects of a constant rate of force application

EMG Time to peak force/peak force Thrust phase Post-SMT 1 Post-SMT 2 Post-SMT 3 Post-SMT 4
T8 Left 57 ms/150 N 2.83 (0.30) 2.60 (0.34) 1.22 (0.15) 0.89 (0.10) 0.73 (0.08)
80 ms/200 N 4.12 (0.50) 2.54 (0.33) 1.13 (0.17) 0.85 (0.12) 0.70 (0.11)
102 ms/250 N 4.03 (0.52) 2.58 (0.36) 1.18 (0.15) 0.86 (0.11) 0.74 (0.11)
125 ms/300 N 4.80 (0.88) 2.24 (0.26) 1.14 (0.18) 1.02 (0.20) 1.03 (0.24)
F(3,72) F = 3.23, p = .03a F = 0.79, p = .50 F = 0.17, p = .92 F = 0.76, p = .52 F = 2.13, p = .10
T8 Right 57 ms/150 N 3.51 (0.84) 2.64 (0.26) 1.38 (0.15) 1.05 (0.11) 0.88 (0.09)
80 ms/200 N 3.46 (0.41) 2.36 (0.27) 1.20 (0.16) 0.91 (0.09) 0.75 (0.08)
102 ms/250 N 3.57 (0.55) 2.38 (0.23) 1.15 (0.15) 0.92 (0.09) 0.82 (0.09)
125 ms/300 N 3.79 (0.49) 2.20 (0.21) 1.25 (0.18) 0.96 (0.13) 0.88 (0.14)
F(3,72) F = 0.13, p = .94 F = 1.41, p = .25 F = 0.64, p = .52 F = 0.66, p = .58 F = 0.67, p = .57
T6 Left 57 ms/150 N 3.72 (0.68) 3.03 (0.45) 1.14 (0.11) 1.02 (0.21) 0.74 (0.08)
80 ms/200 N 4.75 (0.76) 2.69 (0.43) 1.12 (0.13) 0.83 (0.09) 0.64 (0.08)
102 ms/250 N 4.92 (0.91) 2.56 (0.44) 0.91 (0.08) 0.75 (0.07) 0.64 (0.07)
125 ms/300 N 4.17 (0.53) 2.35 (0.27) 0.94 (0.14) 0.85 (0.16) 0.87 (0.21)
F(3,72) F = 2.94, p = .04a F = 0.45, p = .72 F = 2.26, p = .09 F = 0.72, p = .54 F = 1.21, p = .31
T6 Right 57 ms/150 N 3.03 (0.35) 2.76 (0.27) 1.23 (0.12) 0.91 (0.09) 0.74 (0.08)
80 ms/200 N 3.13 (0.33) 2.43 (0.29) 1.10 (0.11) 0.89 (0.10) 0.77 (0.09)
102 ms/250 N 3.40 (0.40) 2.43 (0.36) 1.26 (0.24) 0.92 (0.14) 0.85 (0.15)
125 ms/300 N 3.87 (0.64) 2.67 (0.36) 1.22 (0.23) 0.93 (0.12) 0.87 (0.12)
F(3,72) F = 0.92, p = .43 F = 0.45, p = .72 F = 0.22, p = .88 F = 0.04, p = .99 F = 1.21, p = .61
  1. aStatistically significant