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Table 1 Subject characteristics

From: Noninvasive optical characterization of muscle blood flow, oxygenation, and metabolism in women with fibromyalgia

Parameters Women with fibromyalgia (FM)(n= 14) Healthy controls(HC) (n= 23) P-value
Age (years) 60.0 ± 1.8 56.8 ± 1.0 0.09
Height (cm) 162.8 ± 1.5 163.4 ± 1.3 0.75
Weight (kg) 68.5 ± 4.3 69.1 ± 2.0 0.88
Body mass index (kg m-2) 25.7 ± 1.3 25.9 ± 0.8 0.87
FM duration (year) 13.7 ± 1.9 N/A N/A
IPAQ (MET minute week-1) 7574 ± 1882 5928 ± 864 0.37
Baseline MVIC (N m) 113.6 ± 5.3 128.4 ± 5.6 0.08
% Loss in MVIC immediately post-exercise 31.4 ± 1.3 27.4 ± 2.4 0.23
% Loss in MVIC at 12 minutes post-exercise 21.1 ± 2.5 17.5 ± 2.0 0.28
VAS pain score pre-exercise (mm) 52.4 ± 6.5 6.9 ± 2.1 < 0.001
VAS pain score post-exercise (mm) 56.2 ± 7.0 17.4 ± 4.5 < 0.001
VAS pain score after 12 minutes recovery (mm) 53.6 ± 6.7 10.1 ± 3.3 < 0.001
VAS fatigue score post-exercise (mm) 61.0 ± 7.0 22.8 ± 4.2 < 0.001
  1. Results are presented as mean ± standard error. 1 MET (metabolic equivalent of task), 1 kilocalorie kg-1 hour-1; IPAQ, International Physical Activity Questionnaire; MVIC, maximal voluntary isometric contraction; VAS, visual analog scale.