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Table 1 Physical characteristics, classification of BMI, VO2max (ml·kg-1·min-1) and normal values of maximal oxygen uptake at the age of 20–39 and in the validation study

From: Reliability and validity of the international physical activity questionnaire in the Nord-Trøndelag health study (HUNT) population of men

Physical characteristics of subjects 20–39 year (N = 108)
  Age (yr) Weight (kg) Height (cm) BMI
  Mean SD Mean SD Mean SD Mean SD
Male 32.4 5.24 85.5 12.20 180.2 7.88 26.3 3.16
Classification of BMI among subjects
Age, yr < 18.50 18.50–24.99 25.00–29.99 30.00–34.9     
20–29 1 10 16 4     
30–39   23 45 9     
Subjects characteristics of VO 2max (ml·kg -1 ·min -1 )
Age, yr (N) Low (N) Somewhat low (N) Average (N) High (N) Very high (N)    
20–29 (31) 38 (3) 39–43 (10) 44–51 (13) 52–56 (4) 57 (1)    
30–39 (77) 34 (2) 35–39 (8) 40–47 (40) 48–51 (12) 52 (15)    
Normal values of maximal oxygen uptake, age of 20–39 and in the validation study
Normal values Validation study    
Age, yr, men Mean SD Age, yr, men Mean SD    
20–29 (ml·kg-1·min-1) 43 7.2 20–29 (ml·kg-1·min-1) 45.8 6.39    
METs 12   METs 12.7     
30–39 (ml·kg-1·min-1) 42 7.0 30–39 (ml·kg-1·min-1) 46.1 6.22    
METs 12   METs 12.7     
  1. Values are expressed as mean and standard deviation (SD). MET indicate metabolic equivalent 3.5 ml·kg-1·min-1.