Table 1

Baseline demographic, anthropometric, RA-related, CRF and CVD characteristics for the total RA population as well as the exercise and control groups

Total RA sample (n=36)Exercise group (n=18)Control group (n=18)
Demographic
 Female gender, n (%)28 (78%)14 (78%)14 (78%)
 Age (years)53.9±9.955.0±9.852.8±10.1
Anthropometric
 Height (cm)165.0±8.7165.3±9.6164.8±7.8
 Weight (kg)78.3±15.278.9±17.977.6±11.9
 BMI (kg/m2)28.8±5.128.7±5.128.8±5.3
 Fat mass (%)36.6±8.436.1±8.437.2±8.7
RA characteristics
 Disease duration (years)6.0 (4.0–10.0)5.5 (3.0–9.7)7.0 (5.0–10.0)
 DAS 283.2±1.13.2±1.23.2±1.1
 HAQ1.4±0.81.4±0.81.4±0.7
 ESR (mm 1st h)12.5 (7.2–21.0)14.5 (8.0–25.0)9.0 (4.2–19.0)
 CRP (mg/l)3.0 (3.0–10.1)3.0 (3.0–12.4)3.0 (3.0–6.8)
CRF
 VO2max (l/min)1.82±0.51.9±0.521.7±0.5
 VO2max (ml/min/kg)23.7±6.824.8±7.622.4±5.7
 Resting HR75.1±10.173.7±11.576.9±10.3
 Maximum HR161.0±17.7162.0±18.1160.0±17.7
 IPAQ (MET min/week)2060 (1272–3394)2193(1201–3568)1508 (1037–3200)
CVD
 Resting systolic BP (mm  Hg)129.2±13.0131.4±12.3126.7±13.6
 Resting diastolic BP (mm  Hg)76.9±7.678.4±6.175.2±8.9
 Triglycerides (mmol/l)1.5±0.71.5±0.61.6±0.9
 TC (mmol/l)4.9±1.05.0±1.04.8±1.0
 HDL (mmol/l)1.4±0.41.4±0.41.5±0.4
 TC/HDL3.7±1.23.9±1.13.5±1.4
 Insulin (pmol/l)61.2 (30.5–101)65 (40.5–95.2)49 (21–90.2)
 HOMA2.2±1.52.5±1.61.7±1.2
 QUICKI0.344±0.050.336±0.050.360±0.056
 10-year CVD risk (%)1.0 (0–4.0)1.0 (0–4.0)1.0 (0–3.0)
  • Results expressed as mean±SD or median (range).

  • BMI, body mass index; BP, blood pressure; CRF, cardiorespiratory fitness; CRP, C-reactive protein; CVD, cardiovascular disease; DAS, Disease Activity Score; ESR, erythrocyte sedimentation rate; HAQ, Health Assessment Questionnaire; HDL, high density lipoprotein; HOMA, Homeostasis Model Assessment of Insulin Resistance; HR, heart rate; IPAQ, International Physical Activity Questionnaire; QUICKI, Quantitative Insulin Sensitivity Check Index; RA, rheumatoid arthritis; VO2max, maximal oxygen capacity; TC, total cholesterol.