Table 1 Descriptive statistics of the variables used in the analysis with n representing the total number of observations on a daily level (468 < n < 540) and on individual level (53 < n < 54)

Daily outcome variables

 Variables for hypothesis 1

Functional stress (1.A)

3.55 (1.10)

499

Dysfunctional stress (1.A)

2.47 (1.01)

499

Psychological detachment (1.B)

3.24 (1.01)

506

 Variables for hypothesis 2

Attention difficulties (2.A)

2.32 (0.75)

501

SAI (2.B)

12.52 (3.20)

500

Independent variables

 PA behavior

PA break time via ESD participation time (in min per day)

5.29 (6.30)

503

LTPA time (in min per day)

54.77 (57.96)

501

 Variables for hypothesis 3

Number of breaks during homes studying

2.92 (2.26)

475

Longest stretch of time without a break spent on home studying (in hours)

1.87 (1.16)

468

 Covariates at T0

Age (in years)

23.52 (2.78)

54

Well-being

11.43 (4.12)

53

Detachement

2.37 (0.79)

54

Study demands scale

3.49 (0.88)

54

SAI

12.67 (3.12)

54