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Table 2 Comparison of changes in PA between IG and UCG groups. V0 was considered the reference at mixed model analysis

From: Sustaining training effects through physical activity coaching (STEP): a randomized controlled trial

 

V0

V1

V2

V3

PA (steps/day)

    

UCG

Ref

-313 ± 315

-462 ± 342

-278 ± 318

IG

1277 ± 433

1228 ± 453

1177 ± 457

Between groups changes

 

1544 ± 534

1605 ± 570

1431 ± 555

p value

 

0.004

0.005

0.01

Time spent in MVPA (min/day)

    

UCG

Ref

-3 ± 5

-4 ± 5

-0 ± 5

IG

11 ± 6

13 ± 6

10 ± 6

Between groups changes

 

13 ± 8

16 ± 8

10 ± 8

p value

 

0.0802

0.0466

0.2107

Movement intensity (m/s2)

    

UCG

Ref

-0.018 ± 0.024

0.011 ± 0.027

0.001 ± 0.024

IG

0.057 ± 0.037

0.058 ± 0.040

-0.001 ± 0.039

Between groups changes

 

0.07 ± 0.04

0.04 ± 0.05

-0.01 ± 0.04

p value

 

0.0869

0.3599

0.8840

  1. Values presented as estimates ± standard error obtained from the mixed model analysis adjusted for daylight. PA, physical activity; MVPA, moderate to vigorous PA. UCG, usual care group; IG, intervention group; min; minutes; m, meter; s, seconds. In case of missing data (for steps/day and MVPA) from the Dynaport Activity Monitor, multiple imputation was performed with the data from the Actigraph as outlined in the methodology section. At V1, V2 and V3, interaction effect with V0 as reference value are displayed