Skip to main content

Table 3 Associations between changes in sedentary behavior or physical activity and participation in sports

From: Seasonal changes in objectively measured sedentary behavior and physical activity in Japanese primary school children

Dependent variables

Participation in sports both for the school periods and summer vacationa

Boys (No: n = 10, Yes: n = 58)

Girls (No: n = 12, Yes: n = 72)

Estimated mean

SE

B

P-value

Estimated mean

SE

B

P-value

Δsedentary behavior (min/day)

No

30.0

19.3

28.8

0.138

47.9

15.9

36.4

0.032

Yes

1.2

9.6

0.0

 

11.6

6.8

0.0

 

Δsedentary behavior (min/day) b

No

29.0

19.5

29.5

0.131

48.2

16.1

36.8

0.033

Yes

-0.5

9.9

0.0

 

11.3

7.0

0.0

 

ΔLPA (min/day)

Ambulatory

No

−25.9

7.6

−12.2

0.110

−26.4

5.0

−14.0

0.010

Yes

−13.7

3.8

0.0

 

−12.4

2.2

0.0

 

Ambulatory b

No

−26.0

7.7

−12.1

0.117

−26.5

5.1

−14.3

0.009

Yes

−13.9

4.0

0.0

 

−12.2

2.2

0.0

 

Non-ambulatory

No

−39.6

15.5

−17.8

0.253

−35.8

10.2

−9.6

0.374

Yes

−21.8

7.5

0.0

 

−26.3

4.4

0.0

 

Non-ambulatory b

No

−38.1

15.6

−18.1

0.246

−35.8

10.2

−9.6

0.376

Yes

−20.0

7.7

0.0

 

−26.3

4.4

0.0

 

Total

No

−65.4

18.6

−30.5

0.104

−62.4

12.4

−24.0

0.070

Yes

−34.9

9.1

0.0

 

−38.5

5.3

0.0

 

Total b

No

−64.7

18.8

−30.6

0.105

−62.4

12.5

−24.0

0.071

Yes

−34.1

9.3

0.0

 

−38.4

5.3

0.0

 

ΔMVPA (min/day)

Ambulatory

No

−8.5

4.7

−4.4

0.346

−9.2

2.4

−2.6

0.297

Yes

−4.1

2.3

0.0

 

−6.6

1.0

0.0

 

Ambulatory b

No

−8.8

4.7

−4.4

0.355

−9.4

2.3

−2.9

0.242

Yes

−4.5

2.4

0.0

 

−6.5

1.0

0.0

 

Non-ambulatory

No

−5.4

2.5

−5.1

0.041

−3.9

1.6

−1.9

0.261

Yes

−0.2

1.3

0.0

 

−2.1

0.7

0.0

 

Non-ambulatory b

No

−5.4

2.5

−5.0

0.047

−4.1

1.6

−2.1

0.206

Yes

−0.4

1.3

0.0

 

−2.0

0.7

0.0

 

Total

No

−13.6

6.2

−9.4

0.130

−13.2

3.2

−4.5

0.188

Yes

−4.2

3.2

0.0

 

−8.7

1.4

0.0

 

Total b

No

−13.9

6.2

−9.3

0.133

−13.7

3.1

−5.3

0.117

Yes

−4.6

3.2

0.0

 

−8.5

1.4

0.0

 

ΔMPA (min/day)

Ambulatory

No

−6.6

4.0

−3.7

0.354

−6.8

2.2

−1.9

0.413

Yes

−2.9

2.0

0.0

 

−4.9

1.0

0.0

 

Ambulatory b

No

−6.8

4.1

−3.7

0.360

−7.0

2.2

−2.2

0.349

Yes

−3.1

2.0

0.0

 

−4.9

0.9

0.0

 

Non-ambulatory

No

−4.8

2.4

−4.6

0.057

−3.3

1.5

−1.3

0.402

Yes

−0.2

1.2

0.0

 

−2.0

0.6

0.0

 

Non-ambulatory b

No

−4.8

2.4

−4.5

0.064

−3.5

1.5

−1.6

0.331

Yes

−0.3

1.2

0.0

 

−2.0

0.6

0.0

 

Total

No

−11.7

5.4

−8.6

0.113

−10.0

2.9

−3.3

0.293

Yes

−3.1

2.7

0.0

 

−6.7

1.3

0.0

 

Total b

No

−11.9

5.4

−8.5

0.116

−10.6

2.9

−4.0

0.190

Yes

−3.3

2.8

0.0

 

−6.5

1.2

0.0

 

ΔStep count (steps/day)

No

−2912

1010

−1666

0.100

−2885

592

−1377

0.029

Yes

−1246

492

0

 

−1508

257

0

 
  1. Abbreviations: LPA light physical activity, MVPA moderate-to-vigorous physical activity, MPA moderate physical activity, SE standard error, Δ change, Δvariables were calculated as follow-up values minus baseline values
  2. a except for physical education in the school period, adjusted for school, follow-up periods, age and sedentary behavior or physical activity at baseline
  3. b adjusted for sedentary behavior or moderate-to-vigorous physical activity at baseline