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Table 3 Physical fitness and physical activity stratified by gender and age

From: Reliability and validity of two frequently used self-administered physical activity questionnaires in adolescents

Measurements All (n = 71) Girls (n = 40) Boys (n = 31) 13–15 years (n = 42) 16–18 years (n = 29)
Physical fitness      
   VO2peak (l·min-1) 3.04 (0.77) 2.73 (0.58)* 3.44 (0.81) 2.93 (0.60) 3.24 (0.99)
   VO2peak (ml·kg-1·min-1) 52.54 (8.12) 48.06 (6.21)* 58.06 (6.73) 53.14 (7.66) 51.53 (8.92)
Physical activity      
   Actireg (PAL for 7 days) 1.70 (0.24) 1.66 (0.22) 1.77 (0.26) 1.75 (0.28)# 1.63 (0.14)
   Actireg (TEE for 7 days) 59.39 (8.65) 57.72 (8.51) 61.70 (8.47) 59.97 (9.93) 58.47 (6.20)
   ActiReg (min at METs < 3 for 7 days) 8,954 (441) 9,083 (314) * 8,775 (528) 8,850 (476) # 9,118 (325)
   ActiReg (min at METs 3–6 for 7 days) 845 (313) 776 (207) 942 (402) 953 (328) # 675 (192)
   ActiReg (min at METs > 6 for 7 days) 256 (210) 219 (180) 308 (240) 277 (249) 224 (122)
Questionnaires      
WHO HBSC questionnaire      
   Frequency (days per week) 3.80 (1.77) 3.61 (1.57) 3.97 (2.01) 3.64 (1.81) 3.95 (1.73)
   Duration (hours per week) 4.10 (1.29) 3.81 (2.15) 4.48 (2.36) 4.03 (2.23) 4.21 (2.32)
IPAQ      
   Vigorous activity (days/week) 2.76 (1.84) 2.85 (1.78) 2.65 (1.94) 2.81 (1.70) 2.69 (2.06)
   Vigorous activity (min/day) 73 (43) 71 (39) 74 (47) 78 (51) 65 (28)
   Moderate activity (days/week) 2.89 (2.18) 2.93 (2.10) 2.84 (2.34) 2.98 (2.17) 2.76 (2.23)
   Moderate activity (min/day) 65 (42) 65 (42) 66 (44) 71 (40) 61 (44)
   Walking (days/week) 4.39 (2.19) 4.26 (2.08) 4.57 (2.34) 4.70 (2.26) 3.97 (2.04)
   Walking (min/day) 43 (53) 44 (55) 40 (50) 48 (52) 36 (53)
   Sitting (min/day) 374 (196) 414 (209) 327 (171) 289 (177) 484 (164)
  1. The values are presented in means with standard deviations in brackets
  2. PAL = Average physical activity level for 7 days (PAL = total energy expenditure/basal metabolic rate)
  3. TEE = Total energy expenditure in mega joule
  4. METs = Intensity of activity compared to resting energy expenditure
  5. * Significant difference between genders (p ≤ 0.01)
  6. # Significant difference between age groups (p ≤ 0.05)