Heterogeneity of psychophysiological stress responses in fibromyalgia syndrome patients

Table 5 Psychophysiological response patterns in fibromyalgia syndrome patients and healthy controls

Group	PRP¹	HC (N = 30)		FMS (N = 90)		Total
		N	%	N	%	N	%
1	Low BP	6	20.0	42	46.7	48	40.0
2	High BP	5	16.7	34	37.8	39	32.5
3	High EMG	19	63.3	3	3.3	22	18.3
4	High SCL	0	0.0	11	12.2	11	9.2
Total		30	100.0	90	100.0	120	100.0

Bold text indicates the highest values of each group. ¹Psychophysiological response patterns: Low BP: low systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), skin conductance level (SCL) and electromyographic activity (EMG); High BP: enhanced SBP, DBP, HR as well as moderate SCL and low EMG; High EMG: enhanced EMG as well as stable physiological response; High SCL: enhanced SCL as well as enhanced BP, moderate HR and reduced EMG. HC, healthy control; FMS, fibromyalgia syndrome.

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