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Table 1 Characteristics of the study population

From: Associations of physical activity, fitness, and body composition with heart rate variability–based indicators of stress and recovery on workdays: a cross-sectional study

  Mean Range
Age (y) 34 26–40
Weight (kg) 83.5 51.3–123.2
Height (cm) 179.1 156.5–198.0
BMI (kg/[m]2) 26.0 19.8–35.0
Body fat% 24.5 7.6–41.8
VO2maxa (ml/kg/min) 39.6 23.3–72.6
MET indexb 3.5 0.1–27.7
Activity class (0–10) 4.4 0.0–9.5
Working time (h) 8.4 2.8–16.0
Sleeping time (h) 7.7 4.7–10.3
Bergen burnout inventory total scoresc 36 16–74
Firstbeat variables   
Work stress (%) 72.8 14.5–99.2
Total stress (%) 49.9 12.6–79.1
Stress index 122.3 80.5–193.3
RMSSD (sleep) 56.78 22.6–150.6
Stress balance (−1 to 1) 0.69 −0.43–1.00
Total recovery (%) 29.3 4.6–67.0
Recovery index (24 h) 92.2 74.0–112.2
Recovery index (sleep) 111.4 45.8–246.9
  1. (n = 81).
  2. an = 78 bMET-h/day, based on retrospective PA interview cn = 80.