Table 3.

Data obtained from the microdialysis of trapezius and erector spinae muscles.

Groups	Controls			FM			Statistics
Variables	n	Mean	SD	n	Mean	SD	p−value
NRS pre insertion	31	0.13	0.43	33	4.82	2.89	<0.001 *
NRS 140 min	31	0.42	0.85	33	5.55	2.21	<0.001 *
NRS 160 min	31	1.74	1.84	33	7.67	1.67	<0.001 *
Difference NRS 160 min−140 min	31	1.32	1.38	33	2.12	1.75	0.047 *
Mean NRS 140−220 min	31	0.61	0.84	33	6.07	1.85	<0.001 *
Blood flow Trapezius 140 min	30	0.68	0.07	32	0.65	0.07	0.054
Blood flow Trapezius 160 min	30	0.70	0.10	32	0.67	0.11	0.249
Difference Blood flow Trapezius 160 min−140 min	30	0.02	0.05	32	0.03	0.09	0.825
Mean Blood flow Trapezius 140−220 min	30	0.69	0.07	32	0.66	0.07	0.107
Blood flow Erector spinae 140 min	26	0.54	0.19	31	0.36	0.19	0.001 *
Blood flow Erector spinae 160 min	26	0.59	0.17	31	0.39	0.19	<0.001*
Difference Blood flow Erector spinae 160 min−140 min	25	0.03	0.08	31	0.03	0.08	0.886
Mean Blood flow Erector spinae 140−220 min	27	0.55	0.18	31	0.37	0.18	<0.001 *
Glucose Trapezius 140 min (mmol L−1)	29	10.00	6.92	32	8.41	5.24	0.312
Glucose Trapezius 160 min (mmol L−1)	30	13.25	19.05	32	7.89	5.44	0.132
Difference Glucose Trapezius 160 min–140 min (mmolLl−1)	29	3.11	19.08	32	−0.52	4.94	0.303
Mean Glucose Trapezius 140−220 min (mmol L−1)	30	9.65	5.94	32	8.27	4.39	0.300
Glucose Erector spinae 140 min (mmol L−1)	24	8.35	6.32	31	9.12	6.33	0.657
Glucose Erector spinae 160 min (mmol L−1)	24	12.89	21.88	31	12.57	26.87	0.962
Difference Glucose Erector spinae 160 min−140 min (mmol L−1)	23	4.91	22.89	31	3.45	28.59	0.841
Mean Glucose Erector spinae 140−220 min (mmol Lv1)	25	9.48	6.34	31	10.55	8.81	0.613
Lactate Trapezius 140 min (mmol L−1)	28	2.55	1.62	32	2.71	1.67	0.709
Lactate Trapezius 160 min (mmol L−1)	28	4.61	7.29	32	2.88	2.05	0.234
Difference Lactate Trapezius 160 min − 140 min (mmol L−1)	27	2.19	6.80	32	0.17	1.90	0.145
Mean Lactate Trapezius 140−220 min (mmol L−1)	30	3.51	2.33	32	3.22	1.48	0.552
Lactate Erector spinae 140 min (mmol L−1)	23	1.86	1.04	29	2.68	3.80	0.275
Lactate Erector spinae 160 min (mmol L−1)	23	2.91	4.32	29	2.74	2.66	0.862
Difference Lactate Erector spinae 160 min−140 min (mmol L−1)	23	1.04	4.21	28	0.08	3.36	0.369
Mean Lactate Erector spinae 140–220 min (mmol L−1)	23	2.23	1.36	30	3.65	5.58	0.237
Pyruvate Trapezius 140 min (μmol L−1)	30	12.97	10.98	32	27.96	18.19	< 0.001 *
Pyruvate Trapezius 160 min (μmol L−1)	30	25.54	34.47	32	33.84	31.16	0.323
Difference Pyruvate Trapezius 160 min−140 min (μmol L−1)	30	12.57	31.74	32	5.88	24.81	0.357
Mean Pyruvate Trapezius 140−220 min (μmol L−1)	30	20.10	17.87	32	38.64	29.75	0.005 *
Pyruvate Erector spinae 140 min (μmol L−1)	25	12.37	10.97	31	26.59	30.74	0.032 *
Pyruvate Erector spinae 160 min (μmol L−1)	25	27.22	45.69	31	80.37	270.52	0.337
Difference Pyruvate Erector spinae 160 min−140 min (μmol L−1)	24	14.66	46.09	31	53.79	275.61	0.495
Mean Pyruvate Erector spinae 140−220 min (μmol L−1)	26	18.57	15.97	31	44.15	71.35	0.079
Glycerol Trapezius 140 min (mmol L−1)	30	90.37	60.04	32	95.26	52.10	0.733
Glycerol Trapezius 160 min (mmol L−1)	29	108.94	82.71	32	105.91	85.78	0.889
Difference Glycerol Trapezius 160 min−140 min (mmol L−1)	29	19.35	92.43	32	10.65	72.58	0.683
Mean Glycerol Trapezius 140−220 min (mmol L−1)	30	90.06	41.68	32	103.28	57.53	0.307
Glycerol Erector spinae 140 min (mmol L−1)	25	138.79	96.15	31	149.73	119.08	0.712
Glycerol Erector spinae 160 min (mmol L−1)	25	141.55	177.53	29	136.95	101.51	0.906
Difference Glycerol Erector spinae 160 min − 140 min (mmol L−1)	24	7.17	198.28	29	−10.62	97.96	0.673
Mean Glycerol Erector spinae 140−220 min (mmol L−1)	26	126.60	65.65	31	150.91	90.05	0.258
Glutamate Trapezius 140 min (mmol L−1)	30	49.77	31.65	32	56.06	32.50	0.444
Glutamate Trapezius 160 min (mmol L−1)	29	81.88	56.69	32	79.47	55.15	0.867
Difference Glutamate Trapezius 160 min−140 min (mmol L−1)	29	32.56	57.77	32	23.42	40.17	0.473
Mean Glutamate Trapezius 140−220 min (mmol L−1)	30	63.24	30.87	32	67.55	34.33	0.606
Glutamate Erector spinae 140 min (mmol L−1)	25	41.40	26.52	31	30.20	43.02	0.260
Glutamate Erector spinae 160 min (mmol L−1)	25	48.96	78.95	31	41.44	88.96	0.742
Difference Glutamate Erector spinae 160 min − 140 min (mmol L−1)	24	6.21	79.89	31	11.24	88.62	0.828
Mean Glutamate Erector spinae 140 − 220 min (mmol L−1)	26	41.79	26.23	31	33.82	39.23	0.381

NRS = Numeric rating scale for pain intensity. * denotes statistical significance.