Effects of 15 weeks of resistance exercise on pro-inflammatory cytokine levels in the vastus lateralis muscle of patients with fibromyalgia

Table 4 Background data in 24 patients with fibromyalgia (FMS) and 27 healthy controls (CON) obtained from questionnaires and clinical examination, and significance level (P value) for group comparison (Mann-Whitney U test)

Variables	FMS	CON	P value
Age (years	57.0 (9.0)	57.0 (9.0)	0.800
Height (m)	1.65 (9.8)	1.65 (6.0)	0.743
Weight (kg)	68 (15)	63 (13)	0.091
BMI (kg/m²)	25.4 (6.6)	23.5 (4.5)	0.053
BP diastolic (mm Hg)	85 (10)	82.1 (8.3)	0.555
BP systolic (mm Hg)	133 (24)	131 (16)	0.494
Pain duration (years)	15.2 (8.2)	NA
VAS overall (0–100)	52 (39)	0 (2)	*<0.001*
Tender points (n)	15.9 (1.4)	NA
PPT-all sites (kPa)	180 (112)	326 (100)	*<0.001*
HAD-Depression (0–21)	6.0 (5.6)	1.6 (1.8)	*<0.001*
HAD-Anxiety (0–21)	6.0 (7.0)	3.4 (3.1)	*0.012*
SF36-PSC (0–100)	30.0 (9.3)	54.4 (4.5)	*<0.001*
SF36-MSC (0–100)	44.7 (18.5)	51.2 (6.0)	*0.019*

Data are presented as median (interquartile range)
Bold italic figures denote significant differences
BMI body mass index, BP blood pressure, HADS-Anxiety Hospital Anxiety and Depression Scale—anxiety subscale, HADS-Depression Hospital Anxiety and Depression Scale—depression subscale, NA not applicable, PPT-all sites pressure pain thresholds (mean for all sites), SF36-PCS Short-Form Health Survey 36-physical summary component, SF36-MSC Short-Form Health Survey 36-mental (psychological) summary component, VAS visual analogue scale

ISSN: 1478-6362