Table 3 Frequency and time in bouts of physical activity by 3 different accelerometer’s epoch lengths

Frequency (bouts/day)

TPA3

3.3 ± 1.8

5.1 ± 2.0^**

9.0 ± 3.3^**,‡

TPA5

1.5 ± 1.1

2.7 ± 1.4^**

5.6 ± 2.1^{**, ‡}

TPA10

0.4 ± 0.5

0.8 ± 0.8^**

2.2 ± 1.1^{**, ‡}

MVPA3

1.1 ± 1.3

1.8 ± 1.3^**

1.2 ± 0.9^{**, ‡}

MVPA5

0.5 ± 0.8

0.9 ± 0.8^**

0.7 ± 0.7^**

MVPA10

0.2 ± 0.3

0.3 ± 0.4^**

0.3 ± 0.4^**

Time (min/day)

TPA3

22.0 ± 15.1

41.3 ± 21.6^**

101.8 ± 37.6^{**, ‡}

TPA5

14.8 ± 13.2

30.0 ± 20.3^**

80.2 ± 33.2^{**, ‡}

TPA10

6.9 ± 9.9

15.9 ± 17.0^**

47.7 ± 27.8^{**, ‡}

MVPA3

7.7 ± 10.0

14.3 ± 12.8^**

13.8 ± 13.8^**

MVPA5

5.2 ± 8.1

10.3 ± 11.2^**

10.6 ± 12.8^**

MVPA10

2.6 ± 5.4

5.4 ± 8.8^**

6.5 ± 10.5^**