Table 4

Associations of daily light and moderate-to-vigorous physical activity (LPA/MVPA) minutes with cardiovascular load (n=19)

LPA
WorkdaysNon-workdaysP value
LPA min/day*391.5 (19.9)285.2 (23.3)<0.001
β (SE)P value†β (SE)P value†Interaction
P value
Effect size
(f2)‡
Heart rate (beats/min)
 24-hour0.394 (0.115)0.0010.488 (0.171)0.0040.6400.00
 Waking0.391 (0.116)0.0010.376 (0.172)0.0280.9430.00
 Nocturnal0.057 (0.145)0.6920.331 (0.223)0.1380.3030.01
Systolic BP (mm Hg)
 24-hour0.527 (0.287)0.0670.068 (0.368)0.8530.3160.02
 Waking0.543 (0.273)0.0460.329 (0.350)0.3460.6210.00
 Nocturnal0.116 (0.516)0.822−0.279 (0.678)0.6800.6410.00
Diastolic BP (mm Hg)
 24-hour0.488 (0.157)0.0020.063 (0.200)0.7520.0810.09
 Waking0.519 (0.171)0.0020.384 (0.217)0.0760.6100.00
 Nocturnal0.177 (0.267)0.509−0.238 (0.346)0.4920.3250.00
MVPA
WorkdaysNon-workdaysP value
MVPA min/day*72.4 (7.2)41.5 (8.9)<0.001
β (SE)P value†β (SE)P value†Interaction
P value
Effect size
(f2)‡
Heart rate (beats/min)
 24-hour0.716 (0.140)<0.0010.068 (0.264)0.7960.0250.04
 Waking0.837 (0.141)<0.0010.132 (0.265)0.6200.0160.05
 Nocturnal0.480 (0.175)0.006−0.289 (0.346)0.4040.0440.03
Systolic BP (mm Hg)
 24-hour−0.172 (0.344)0.6180.084 (0.537)0.8750.6860.04
 Waking−0.135 (0.328)0.6820.057 (0.505)0.9100.7480.02
 Nocturnal0.095 (0.602)0.874−0.150 (1.050)0.8860.8410.02
Diastolic BP (mm Hg)
 24-hour−0.030 (0.185)0.8720.341 (0.283)0.2280.2730.11
 Waking0.083 (0.202)0.6810.645 (0.308)0.0360.1260.17
 Nocturnal0.038 (0.304)0.902−0.001 (0.507)0.9990.9500.01
  • All coefficients for LPA represent a unit change in outcome per 120 min change in activity.

  • All coefficients for MVPA represent a unit change in outcome per 10 min change in activity.

  • All models were adjusted for age, BMI, smoking status, fitness, the resting value of the outcome of interest and the opposing activity variable (LPA or MVPA).

  • *Presented as least squared means (SE).

  • †P values indicate the probability of the associated beta-coefficient being equal to 0.

  • ‡The magnitude of effect (f2) is calculated for the interaction term and can be interpreted as small: f2 ≥0.02, medium: f2 ≥0.15 and large: f2 ≥0.35.

  • BMI, body mass index; BP, blood pressure; β (SE), beta coefficient (SE).