Assessing forces during spinal manipulation and mobilization: factors influencing the difference between forces at the patient-table and clinician-patient interfaces

Mikhail, Jérémie; Funabashi, Martha; Descarreaux, Martin; Pagé, Isabelle

doi:10.1186/s12998-020-00346-1

Chiropractic & Manual Therapies

Table 5 Correlations¹ between F_diff and potential influencing factors and differences between sex²

From: Assessing forces during spinal manipulation and mobilization: factors influencing the difference between forces at the patient-table and clinician-patient interfaces

Factors	SMT1	SMT2	SMT3	SMT4	MOB1	MOB2	MOB3	MOB4
Sex	T₃₂ = 2.14, p = 0.04*	T₃₂ = 1.43, p = 0.16	T₃₂ = 1.83, p = 0.08	T₃₂ = 1.08, p = 0.29	T₃₂ = 0.64, p = 0.53	T₃₂ = 0.61, p = 0.55	T₃₂ = 0.20, p = 0.84	T₃₂ = 0.81, p = 0.42
Rod displacement	r = 0.67 p = 0.001*	r_e = 0.30 p = 0.09	r = 0.54 p = 0.001*	r_e = 0.05 p = 0.77	r_e = −0.12 p = 0.51	r_e = 0.11 p = 0.55	r_e = −0.17 p = 0.34	r_e = − 0.12 p = 0.49
Weight	r_e = −0.20 p = 0.26	r_e = − 0.27 p = 0.13	r_e = − 0.28 p = 0.11	r_e = − 0.32 p = 0.07	r_e = − 0.22 p = 0.21	r_e = − 0.24 p = 0.18	r_e = − 0.04 p = 0.82	r_e = − 0.08 p = 0.67
Height	r_e = − 0.31 p = 0.08	r_e = − 0.29 p = 0.10	r_e = − 0.34 p = 0.05	r_e = − 0.24 p = 0.19	r_e = − 0.12 p = 0.52	r_e = − 0.08 p = 0.67	r_e = 0.08 p = 0.66	r_e = 0.14 p = 0.43
Age	r_e = 0.18 p = 0.34	r_e = 0.16 p = 0.40	r_e = 0.05 p = 0.81	r_e = − 0.10 p = 0.58	r_e = − 0.29 p = 0.13	r_e = 0.17 p = 0.38	r_e = − 0.03 p = 0.89	r_e = 0.02 p = 0.91
BMI	r_e = − 0.05 p = 0.79	r_e = − 0.17 p = 0.33	r_e = − 0.14 p = 0.43	r_e = − 0.27 p = 0.13	r_e = − 0.23 p = 0.19	r_e = − 0.29 p = 0.10	r_e = − 0.12 p = 0.50	r_e = − 0.23 p = 0.21
Percentage of body fat	r_e = 0.33 p = 0.06	r_e = 0.23 p = 0.19	r_e = 0.27 p = 0.13	r_e = 0.21 p = 0.25	r_e = 0.09 p = 0.61	r_e = − 0.06 p = 0.75	r_e = − 0.03 p = 0.86	r_e = − 0.15 p = 0.39
Percentage of trunk fat	r_e = 0.34 p = 0.06	r_e = 0.19 p = 0.30	r_e = 0.25 p = 0.16	r_e = 0.16 p = 0.38	r_e = 0.09 p = 0.62	r_e = − 0.10 p = 0.57	r_e = − 0.05 p = 0.77	r_e = − 0.13 p = 0.46
Thickness	r_e = −0.01 p = 0.97	r_e = − 0.36 p = 0.049*	r_e = − 0.02 p = 0.90	r_e = − 0.21 p = 0.27	r_e = − 0.35 p = 0.06	r_e = − 0.53 p = 0.004*	r_e = − 0.19 p = 0.32	r_e = − 0.28 p = 0.13
T5 nRMS	r_e = − 0.03 p = 0.88	r_e = 0.07 p = 0.72	r_e = − 0.05 p = 0.80	r_e = 0.50 p = 0.01*	r_e = − 0.08 p = 0.70	r_e = 0.22 p = 0.26	r_e = 0.23 p = 0.22	r_e = 0.24 p = 0.20
T7 nRMS	r_e = 0.15 p = 0.44	r_e = 0.08 p = 0.67	r = −0.07 p = 0.71	r_e = 0.44 p = 0.02*	r_e = 0.07 p = 0.72	r_e = 0.15 p = 0.53	r_e = 0.42 p = 0.02*	r_e = 0.11 p = 0.56

* Significant correlation / difference at p < 0.05
¹ Pearson correlation coefficient (r) or its estimated value from Kendall Tau rank coefficient (r_e) are presented. Positive correlation value denotes an increase in F_diff with the increase in the factor value
² Positive T-test value denotes greater F_diff in females

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