Table 2

 Mean and 95% confidence intervals of minutes per day spent in inactivity, moderate activity, vigorous activity, hard activity and hard/vigorous activity as estimated by triaxial accelerometry

Age (years)SedentaryModerateVigorousHardVigorous/hard
Boys
7–8 (n = 23)927.6 (897.1 to 958.0)115 (100.7 to 129.3)40.6 (33.2 to 48.0)23.4 (16.1 to 30.7)56 (43.8 to 68.2)
8–9 (n = 23)917.5 (880.8 to 954.2)117 (104.7 to 129.3)33.8 (25.1 to 42.5)22.3 (13.7 to 30.9)56 (43.8 to 68.2)
9–10 (n = 6)1028.5 (951.4 to 1105.6)70 (52.4 to 87.6)21.0 (13.4 to 28.6)16.2 (12.3 to 30.1)66.3 (15.1 to 117.5)
Total (n = 52)935.1 (910.8 to 959.4)110.5 (101.0 to 120.0)37.6 (32.3 to 42.9)22.1 (16.9 to 27.3)64.3 (53.2 to 75.4)
Girls
7–8 (n = 36)945.6 (909.3 to 981.9)95 (83.9 to 106.1)22.6 (19.0 to 26.2)9.4 (6.6 to 12.1)30 (24.6 to 35.4)
8–9 (n = 59)970.5 (950.9 to 990.2)98 (92.0 to 104.0)26.1 (23.4 to 28.8)13.9 (10.5 to 17.3)41 (35.9 to 46.1)
9–10 (n = 5)1015.0 (965.4 to 1064.5)82 (62.7 to 101.3)16.0 (9.95 to 22.0)6.7 (2.7 to 10.7)22.2 (14.2 to 30.2)
Total (n = 100)963.8 (945.8 to 981.8)96.1 (90.6 to 101.6)24.5 (22.3 to 26.6)12.1 (9.8 to 14.4)37 (33.1 to 40.9)
Significancep = 0.068p = 0.007p<0.001p = 0.068p<0.001