Table 3

Physical fitness and physical activity stratified by gender and age

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)

The values are presented in means with standard deviations in brackets

PAL = Average physical activity level for 7 days (PAL = total energy expenditure/basal metabolic rate)

TEE = Total energy expenditure in mega joule

METs = Intensity of activity compared to resting energy expenditure

* Significant difference between genders (p ≤ 0.01)

# Significant difference between age groups (p ≤ 0.05)

Rangul et al. BMC Medical Research Methodology 2008 8:47   doi:10.1186/1471-2288-8-47