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Table 5 Relationship between moderate- to vigorous- intensity physical activity (min/day) accumulated in 60 and 10 second epochs and health outcome measures (n = 102).

From: Issues in accelerometer methodology: the role of epoch length on estimates of physical activity and relationships with health outcomes in overweight, post-menopausal women

 

60s epoch

10s epoch

Test for Difference Between Correlations p value

60s epoch β

10s epoch β

Test for Equality of Slope p value

 

ρ

ρ

    

Anthropometric Measures

      

   Body weight, lbs

-0.231*

-0.165

0.01

-0.18*

-0.14

0.12

   Body Mass Index, kg/m2

-0.253*

-0.202*

0.05

-1.30*

-1.16*

0.36

   Waist Circumference, cm

-0.286**

-0.273**

0.59

-0.52**

-0.55**

0.55

   Whole body fat mass, kg

-0.334***

-0.251*

0.001

-0.96

-0.81

0.07

   Trunk fat mass, kg

-0.347***

-0.286**

0.01

-1.76

-1.63

0.37

   Whole body lean mass, kg

-0.198*

-0.136

0.02

-0.72*

-0.55

0.13

   Trunk lean mass, kg

-0.228*

-0.177

0.05

-1.64*

-1.42

0.32

Bone Parameters

      

   Spine, g/cm2

-0.270**

-0.253*

0.51

-38.58**

-40.37*

0.68

   Trochanter, g/cm2

-0.075

-0.045

0.27

-13.70

-9.27

0.43

   Intertrochanter, g/cm2

-0.110

-0.083

0.31

-16.31

-13.75

0.57

   Femoral Neck, g/cm2

-0.122

-0.063

0.02

-23.31

-13.43

0.09

   Hip, g/cm2

-0.113

-0.080

0.20

-19.57

-15.37

0.42

Physical Activity

      

   Leisure Physical Activity, MET∙hr∙wk-1 b

0.336***

0.335***

0.97

0.45***

0.51***

0.18

   400 m walk, s d

-0.437***

-0.415***

0.40

-0.22***

-0.23***

0.45

Cardiovascular Disease Risk Factors

      

   Systolic Blood Pressure, mmHg

-0.169

-0.203*

0.19

-0.22

-0.29*

0.06

   Diastolic Blood Pressure, mmHg

-0.101

-0.115

0.62

-0.25

-0.32

0.38

   Total Cholesterol, mg/dL a

0.042

0.055

0.64

0.03

0.04

0.53

   LDL-c, mg/dL a

0.006

0.030

0.38

0.004

0.02

0.38

   HDL-c, mg/dL a

0.105

0.115

0.70

0.13

0.16

0.44

   Triglycerides, mg/dL a

-0.040

-0.085

0.09

-0.01

-0.04

0.07

   Insulin, mg/dL c

-0.307**

-0.289**

0.49

-1.29**

-1.35**

0.66

   Glucose, mg/dL a

-0.212*

-0.213*

0.99

-0.40*

-0.45*

0.41

  1. P < 0.10; *P < 0.05; **P < 0.01; ***P < 0.001; a n = 101; b n = 100; c n = 99; d n = 90