| |
Fitbit Zip
|
ActiGraph GT3x
|
r
|
Bias
|
LoA
|
LuA
|
|---|
|
Steps
|
|
Class time
|
231.5 (298.2)
|
206.2 (222.9)
|
0.85**
|
25.2
|
− 209.6
|
260.3
|
|
Physical education lesson
|
2354.0 (1279.6)
|
2008.7 (1172.5)**
|
0.96**
|
345.3
|
− 163.8
|
854.4
|
|
Recess
|
472.2 (337.2)
|
388.5 (268.2)**
|
0.96**
|
83.7
|
−127.3
|
294.7
|
|
MVPA (min)
|
|
Class time
|
0.6 (2.5)
|
0.9 (1.7)**
|
0.24**
|
−0.3
|
−4.0
|
3.3
|
|
Physical education lesson
|
17.8 (14.1)
|
15.4 (9.1)*
|
0.72**
|
2.4
|
−14.7
|
19.4
|
|
Recess
|
2.1 (4.3)
|
2.4 (2.4)**
|
0.56**
|
−0.3
|
−6.4
|
5.8
|
|
Sedentary time (min)
|
|
Class time
|
37.5 (5.8)
|
33.8 (6.5)**
|
0.57**
|
3.6
|
−6.5
|
13.8
|
|
Physical education lesson
|
11.1 (9.8)
|
13.7 (9.0)**
|
0.85**
|
−2.6
|
−10.4
|
5.2
|
|
Recess
|
5.5 (4.1)
|
5.4 (3.9)
|
0.87**
|
0.1
|
−3.7
|
3.9
|
- Note: * P < 0.05, ** P < 0.001, LoA lower limits of agreement, LuA upper limits of agreement. Differences between two devices according to Wilcoxon Signed Rank test are presented in column “ActiGraph GT3x”
